overview

1. Purpose

<p class="MsoNormal">The RT5759 is a high efficiency synchronous step-down DC-DC converter. Its input voltage range is from 3V to 6V and provides an VID Control regulated output voltage from 0.6V to 1.5V step 10mV while delivering up to 9A of output current. This document explains the function and use of the RT5759 evaluation board (EVB), and provides information to enable operation, modification of the evaluation board and circuit to meet individual requirements.</p>

2. Introduction

<h3>General Product Information</h3> <p class="bady">The RT5759 is a high-performance, synchronous stepdown DC-DC converter that can deliver up to 9A output current from a 3V to 6.5V input supply. The output voltage can be programmable from 0.6V to 1.5V with I²C controlled 7-Bits VID. The device integrates low R_DS(ON) power MOSFETs and an integrated diode of bootstrap circuit to offer a very compact solution. </p> <p class="bady">The RT5759 adopts Advanced Constant On-Time (ACOT^®) control architecture that provides ultrafast transient response and further reduce the external-component count. In steady states, the ACOT^® operates in nearly constant switching frequency over line, load and output voltage ranges and makes the EMI filter design easier. The RT5759 offers automatic PSM that maintains high efficiency during light load operation. The RT5759 can also operate in Forced-CCM through I²C setting that helps meet tight voltage regulation accuracy requirements.</p> <p class="bady">The device offers a variety of functions for more design flexibility. The switching frequency, current limit level and over temperature threshold are selectable via I²C. Independent enable control input pin and power good indicator are also provided for easy sequence control. Besides, the designers can also command the device to be enabled or shutdown via the I²C interface.</p> <p class="bady">The device offers Independent enable control input pin and power good indicator for easily sequence control. To control the inrush current during the startup, the device provides a programmable soft-start up by an external capacitor connected to the SS pin. Fully protection features are also integrated in the device including the cycle-by-cycle current limit control, UVP, input UVLO and OTP.</p> <p class="bady">The RT5759 is available in a thermally enhanced UQFN-13L 3x3 (FC) package.</p>

3. Product Feature

<ul> <li>Dramatically Fast Transient Response</li> <li>Steady 1MHz ±20% Switching Frequency</li> <li>Advanced COT Control Loop</li> <li>Optimized for Ceramic Output Capacitors</li> <li>3V to 6.5V Input Voltage Range</li> <li>Integrated 12mΩ/8mΩ MOSFETs</li> <li>Internal Start-Up into Pre-Biased Outputs</li> <li>Power Good Indicator</li> <li>Enable Control</li> <li>Over-Current and Over-Temperature Protections</li> <li>Under-Voltage Protection with Hiccup Mode</li> <li>VID Control Range Via I²C Compatible Interface : 0.6V to 1.5V step = 10mV</li> </ul>

4. Key Performance Summary Table

<table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;margin-left:.25pt;border-collapse:collapse; border:none"> <tr style="height:17.0pt"> <td width="34%" style="width:34.94%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Key Features</p> </td> <td width="65%" style="width:65.06%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Evaluation Board Number : PCB105_V1</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.94%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Default Input Voltage</p> </td> <td width="65%" style="width:65.06%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">3.3V</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.94%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Maximum Output Current</p> </td> <td width="65%" style="width:65.06%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">9A</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.94%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Default Output Voltage</p> </td> <td width="65%" style="width:65.06%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">1.0V</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.94%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Default Marking & Package Type</p> </td> <td width="65%" style="width:65.06%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">RT5759GQUF, UQFN-13L 3x3 (FC)</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.94%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Operation Frequency</p> </td> <td width="65%" style="width:65.06%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Steady 1MHz in CCM Mode</p> </td> </tr> </table>

5. Bench Test Setup Conditions

<h3>Headers Description and Placement </h3> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image001_en.png"><img width="491" height="366" id="圖片 9" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image001_en.png" alt="Technical Document Image Preview" /></a></p> <p class="2">Carefully inspect all the components used in the EVB according to the following Bill of Materials table, and then make sure all the components are undamaged and correctly installed. If there is any missing or damaged component, which may occur during transportation, please contact our distributors or e-mail us at <a href="mailto:evb_service@richtek.com" class="link">evb_service@richtek.com</a>.</p>

6. Test Points

<p class="MsoNormal">The EVB is provided with the test points and pin names listed in the table below.</p> <div> <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="674" style="width:505.4pt;border-collapse:collapse;border:none"> <thead> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="23CxSpFirst">Test point/</p> <p class="23CxSpMiddle">Pin Name</p> </td> <td width="25%" style="width:25.62%;border-top:solid #009EB8 1.0pt; border-left:none;border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="23CxSpMiddle">Signal</p> </td> <td width="61%" style="width:61.46%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="23CxSpLast">Comment (expected waveforms or voltage levels on test points)</p> </td> </tr> </thead> <tr style="height:39.7pt"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="ListParagraph1">EN</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">Enable Control Input</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">Enable control input. A logic-high enables the converter; a logic-low forces the device into shutdown mode. EN can be connected to VIN for automatic start-up.</p> </td> </tr> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">A0</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">I²C Setting</p> <p class="MsoNormal">Device address select pin.</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">High : 0x60, Low : 0x63, Floating : 0x62.</p> </td> </tr> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1CxSpFirst">BOOT</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1CxSpLast">Bootstrap</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Supply for high-side gate driver. Connect a 0.1µF ceramic capacitor between BOOT and SW pins.</p> </td> </tr> <tr style="height:17.0pt"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">SW</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">Switch Node</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Switch node. Connect this pin to an external L-C filter.</p> </td> </tr> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1CxSpFirst">PGND</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1CxSpLast">Power Ground</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Used for all large signal grounds.The exposed pad must be soldered to a large PCB copper area for maximum power dissipation.</p> </td> </tr> <tr style="height:39.7pt"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="ListParagraph1">VIN</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">Input Voltage</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">Support 3V to 6.5V input voltage. Connect this pin with a suitable</p> <p class="MsoNormal">capacitance for noise decoupling. The bypass capacitor should be placed as close to VIN pin as possible.</p> </td> </tr> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">AVCC</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Output for Internal Analog Power</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Connect a 4.7µF capacitor as close to the VCC pin as possible.</p> </td> </tr> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">AGND</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Analog GND</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Signal ground of the FB network. AGND and PGND are connected with a short trace and at only one point to reduce circulating currents.</p> </td> </tr> <tr style="height:1.0cm"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">PGOOD</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Power Good Indicator Output</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">This pin has an open drain structure. Pull this pin high to a voltage source with a 100kΩ resistor.</p> </td> </tr> <tr style="height:17.0pt"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">SDA</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">I²C interface</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">DATA.</p> </td> </tr> <tr style="height:17.0pt"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">SCL</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">I²C interface</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">CLK.</p> </td> </tr> <tr style="height:39.7pt"> <td width="12%" style="width:12.92%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="ListParagraph1">SS</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">Soft-Start Time Control Pin</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">Connect a capacitor between the SS pin and AGND to set the soft-start time. The default internal start-up time is 1.6ms without external capacitor.</p> </td> </tr> <tr style="height:51.0pt"> <td width="12%" style="width:12.92%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:51.0pt"> <p class="ListParagraph1">FB</p> </td> <td width="25%" style="width:25.62%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:51.0pt"> <p class="MsoNormal">Feedback Input</p> </td> <td width="61%" style="width:61.46%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:51.0pt"> <p class="MsoNormal">The pin is used to set the output voltage of the converter via a resistor divider. Suggest placing the FB resistor divider as close to FB pin and AGND as possible. Keep away from high current loops and swithing voltages.</p> </td> </tr> </table> </div>

7. Power-up & Measurement Procedure

<p class="MsoListParagraph">1. Apply a 3.3V/5V nominal input power supply (3V < V_IN < 6.5V) to the VIN and GND terminals.</p> <p class="MsoListParagraph">2. Set the jumper at JP2 to connect terminals H and EN, connecting EN to VIN through resistor R5 (100kΩ). The Enable pin can connected to VIN directly as well to enable operation.</p> <p class="MsoListParagraph">3. Set the jumper at JP4 to connect terminals H and PG, Connenting AVCC to H through resistor R7 (100kΩ).</p> <p class="MsoListParagraph">4. Both of the CP2 and CP3 are short.</p> <p class="MsoListParagraph">5. Verify the output voltage (approximately 1V) between VOUT and GND.</p> <p class="MsoListParagraph">6. Connect an external load up to 9A to the VOUT and GND terminals and verify the output voltage and current.<br /> <br /> </p>

8. Schematic, Bill of Materials & Board Layout

<h3>EVB Schematic Diagram</h3> <p class="MsoNormal">RT5759HGQW demo board : V_IN = 3.3V / 5V, V_OUT 1.0V / 9A</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image002_en.png"><img border="0" width="680" height="264" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image002_en.png" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal">* Note : </p> <p class="MsoNormal">1. The capacitance values of the input and output capacitors will influence the input and output voltage ripple. </p> <p class="MsoNormal">2. MLCC capacitors have degrading capacitance at DC bias voltage, and especially smaller size MLCC capacitors will have much lower capacitance than specified : </p> <p class="MsoNormal">3. MLCC 22µF/6.3V/X5R 0805 size will have ~13.6µF capacitance @ 1V DC bias and AC ripple effect.</p> <p class="MsoNormal">4. MLCC 22µF/16V/X5R 0805 size will have ~8.18µF/11.75µF @ 5V/3.3V DC bias and AC ripple effect.</p> <p class="MsoNormal">5. MLCC 47µF/10V/X5R 0805 size will have ~12.88µF/19.76µF @ 5V/3.3V DC bias and AC ripple effect.</p> <p class="MsoNormal">6. Set default soft start time 1.6ms by C7 NC. </p>

9. Bill of Materials

<table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="680" style="margin-left:-.75pt;border-collapse:collapse;border:none"> <thead> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">Reference</p> </td> <td width="34" nowrap style="width:25.2pt;border:solid #009EB8 1.0pt; border-left:none;background:#009EB8;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">Qty</p> </td> <td width="169" nowrap style="width:126.7pt;border:solid #009EB8 1.0pt; border-left:none;background:#009EB8;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">Part Number</p> </td> <td width="123" nowrap style="width:92.35pt;border:solid #009EB8 1.0pt; border-left:none;background:#009EB8;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">Description</p> </td> <td width="134" style="width:100.8pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">Package</p> </td> <td width="94" nowrap style="width:70.85pt;border:solid #009EB8 1.0pt; border-left:none;background:#009EB8;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">Manufacturer</p> </td> </tr> </thead> <tr style="height:1.0cm"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:1.0cm"> <p class="MsoNormal">U1</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:1.0cm"> <p class="MsoNormal">1</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:1.0cm"> <p class="MsoNormal">RT5759GQUF</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:1.0cm"> <p class="MsoNormal">Step-Down DC-DC Converter</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:1.0cm"> <p class="MsoNormal">UQFN-13L 3x3 (FC)</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:1.0cm"> <p class="MsoNormal">RICHTEK</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C3</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">GRM21BR61A476ME15L</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">47µF/10V/X5R</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C-0805</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">MURATA</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C4, C8, C13</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">3</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C1608X7R1H104K080AA</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">100nF/50V/X7R</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C-0603</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">TDK</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C5</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C1608X5R0J475K080AB</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">4.7µF/6.3V/X5R</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C-0603</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">TDK</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C9, C10, C11, C12</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">4</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">GRM21BR60J226ME39</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">22µF/6.3V</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">C-0805</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">MURATA</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">L1</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WURTH 744314047</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">0.47µH</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">6.9x6.9x4.8mm</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WE</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R2, R4, R9</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">3</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WR06X000 PTL</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">0</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R3</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">RTT032002FTP</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">20k</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">RALEC</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R5, R6, R7</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">3</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WR06X1003FTL</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">100k</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="126" style="width:94.3pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R24, R25</p> </td> <td width="34" nowrap style="width:25.2pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">2</p> </td> <td width="169" nowrap style="width:126.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WR06X1002FTL</p> </td> <td width="123" nowrap style="width:92.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">10k</p> </td> <td width="134" style="width:100.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="94" nowrap style="width:70.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> </table> <div class="tb-system"> <table class="MsoTableGrid" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;border:none"> <tr> <td width="484" valign="top" style="width:363.3pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image003_en.jpg"><img border="0" width="470" height="379" id="圖片 23" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image003_en.jpg" alt="Technical Document Image Preview" /></a></p> </td> <td width="210" valign="top" style="width:157.7pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">The RT5759 is I²C controlled : The parameters were set via Richtek I²C tool : </p> <p class="MsoNormal">f_SW = 600kHz</p> <p class="MsoNormal">V_OUT = 1V</p> <p class="MsoNormal">Mode = Forced-PWM</p> </td> </tr> </table> </div> <h3>Measurement Results</h3> <p class="MsoNormal"><strong>PWM mode, 600kHz</strong></p> <div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="684" style="border-collapse:collapse;border:none"> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 3.3V 10mA load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> <td width="343" valign="top" style="width:257.25pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 3.3V 2A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image004_en.jpg"><img border="0" width="302" height="227" id="圖片 27" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image004_en.jpg" alt="TEK00006" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image005_en.jpg"><img border="0" width="302" height="227" id="圖片 26" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image005_en.jpg" alt="TEK00007" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 10mA load : 13.4mVpp</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 2A load : 13.8mVpp</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 3.3V 6A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 3.3V 9A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image006_en.jpg"><img border="0" width="302" height="227" id="圖片 25" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image006_en.jpg" alt="TEK00008" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image007_en.jpg"><img border="0" width="302" height="227" id="圖片 24" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image007_en.jpg" alt="TEK00009" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 6A load : 13.6mVpp</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 9A load : 13.2mVpp</p> </td> </tr> </table> </div> <div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="684" style="border-collapse:collapse;border:none"> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 5V 10mA load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> <td width="343" valign="top" style="width:257.25pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 5V 2A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image008_en.jpg"><img border="0" width="302" height="227" id="圖片 31" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image008_en.jpg" alt="TEK00013" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image009_en.jpg"><img border="0" width="302" height="227" id="圖片 30" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image009_en.jpg" alt="TEK00012" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 10mA load : 15mVpp</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 2A load : 15mVpp</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 5V 6A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple measurement at V_IN = 5V 9A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image010_en.jpg"><img border="0" width="302" height="227" id="圖片 29" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image010_en.jpg" alt="TEK00011" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image011_en.jpg"><img border="0" width="302" height="227" id="圖片 28" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image011_en.jpg" alt="TEK00010" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 6A load : 15.4mVpp</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Output ripple at 9A load : 16mVpp</p> </td> </tr> </table> </div> <div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="684" style="border-collapse:collapse;border:none"> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN ripple measurement at V_IN = 5V 2A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> <td width="343" valign="top" style="width:257.25pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Vin ripple measurement at V_IN = 5V 8A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image012_en.jpg"><img border="0" width="302" height="227" id="圖片 100" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image012_en.jpg" alt="TEK00030" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image013_en.jpg"><img border="0" width="302" height="227" id="圖片 99" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image013_en.jpg" alt="TEK00033" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN Ripple at 2A load : 19mVpp</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN Ripple at 8A load : 44.1mVpp</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN ripple measurement at V_IN = 3.3V 2A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN ripple measurement at V_IN = 3.3V 8A load</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_SW</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image014_en.jpg"><img border="0" width="302" height="227" id="圖片 97" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image014_en.jpg" alt="TEK00032" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image015_en.jpg"><img border="0" width="302" height="227" id="圖片 96" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image015_en.jpg" alt="TEK00031" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN Ripple at 2A load : 17.1mVpp</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_IN Ripple at 8A load : 48mVpp</p> </td> </tr> </table> </div> <div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="684" style="border-collapse:collapse;border:none"> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Dynamic load 160mA to 2.84A load step (PWM mode)</p> <p class="MsoNormal">CH1 : V_OUT, CH4 : I_OUT</p> </td> <td width="343" valign="top" style="width:257.25pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Dynamic load 2.24A to 5A load step (PWM mode)</p> <p class="MsoNormal">CH1 : V_OUT, CH4 : I_OUT</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image016_en.jpg"><img border="0" width="303" height="226" id="圖片 106" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image016_en.jpg" alt="TEK00015" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image017_en.jpg"><img border="0" width="303" height="226" id="圖片 105" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image017_en.jpg" alt="TEK00018" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Overshoot : 31mV, undershoot : 36mV </p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Overshoot : 33mV, undershoot : 36mV</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Start-up measurement from Enable : EN pin low to high</p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_EN, CH3 : V_PG, CH4 : I_OUT</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Power off measurement from V-in : V_IN from 3.3V to 0V </p> <p class="MsoNormal">CH1 : V_OUT, CH2 : V_IN, CH3 : V_PG</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image018_en.jpg"><img border="0" width="303" height="226" id="圖片 104" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image018_en.jpg" alt="TEK00019" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image019_en.jpg"><img border="0" width="303" height="226" id="圖片 103" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image019_en.jpg" alt="TEK00040" /></a></p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Start-up time 2.7msec. Soft-start 1.575msec</p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">V_OUT discharge during power off</p> </td> </tr> </table> </div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="342" style="margin-left:4.0pt;border-collapse:collapse;border:none"> <tr> <td width="342" valign="top" style="width:256.2pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">OCP measurement : Gradually increase load </p> <p class="MsoNormal">CH1 : V_OUT, CH3 : V_PG, CH4 : I_OUT</p> </td> </tr> <tr> <td width="342" valign="top" style="width:256.2pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image020_en.jpg"><img border="0" width="303" height="226" id="圖片 4" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image020_en.jpg" alt="TEK00022" /></a></p> </td> </tr> <tr> <td width="342" valign="top" style="width:256.2pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal">Auto-recovery hiccup mode when OC limit is exceeded. </p> </td> </tr> </table> <p class="MsoNormal"><strong>Efficiency : 600kHz, PWM mode</strong></p> <div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="684" style="border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">IC top temperature = 76°C on V_IN = 3.3V, V_OUT = 1V, I_OUT = 9A</p> </td> <td width="343" valign="top" style="width:257.25pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">IC top temperature = 67.7°C on V_IN = 5V, V_OUT = 1V, I_OUT = 9A</p> </td> </tr> <tr> <td width="341" valign="top" style="width:255.8pt;border:solid windowtext 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image021_en.jpg"><img border="0" width="302" height="227" id="圖片 7" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image021_en.jpg" alt="Technical Document Image Preview" /></a></p> </td> <td width="343" valign="top" style="width:257.25pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image022_en.jpg"><img border="0" width="302" height="227" id="圖片 8" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image022_en.jpg" alt="Technical Document Image Preview" /></a></p> </td> </tr> </table> </div> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image023_en.jpg"><img border="0" width="462" height="372" id="圖片 110" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image023_en.jpg" alt="Technical Document Image Preview" /></a></p>

10. PCB Layout

<p class="23CxSpMiddle"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image024_en.jpg"><img border="0" width="491" height="346" id="圖片 1" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image024_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="23CxSpLast">Top View (1^st layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image025_en.jpg"><img border="0" width="491" height="346" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image025_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="10">PCB Layout—Inner Side (2^nd Layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image026_en.jpg"><img border="0" width="491" height="345" id="圖片 5" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image026_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="10">PCB Layout—Inner Side (3^rd Layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image027_en.jpg"><img border="0" width="491" height="346" id="圖片 6" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5759gquf/html-images/image027_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal">Bottom View (4^th Layer)</p>