overview

1. Purpose

<p class="MsoNormal">The RT9465 is a switch-mode single cell li-Ion/Li-Polymer battery charger for portable applications. It intergrates a synchronous PWM controller, and high accuracy voltage regulation. Besides, the charging current is regulated through the integrated sensing resistors. This document explains the function and use of the RT9465 evaluation board (EVB), and provides information to enable operation, modification of the evaluation board and circuit to suit individual requirements.</p>

2. Introduction

<h3>General Product Information</h3> <p class="bady">The RT9465 is a switch-mode single cell li-Ion/Li-Polymer battery charger for portable applications. It integrates a synchronous PWM controller, and high accuracy voltage regulation. Besides, the charging current is regulated through the integrated sensing resistors.</p>

3. Product Feature

<ul> <li>Input Voltage Range : 3.9V to 14V</li> <li>Synchronous 1.5MHz/0.75MHz Switching Frequency 95% Max. Duty</li> <li>Up to 92%/94% Peak Efficiency at VIN = 9V/5V</li> <li>VIN Over-Voltage Protection : 14.5V</li> <li>VIN Under-Voltage Protection : 3.8V</li> <li>VIN Under-Voltage-Lock-Out : 3.3V</li> <li>Fault Detection (VIN and VBAT Monitoring)</li> <li>INT Output for Communication with I²C</li> <li>Programmable Minimum Input Voltage Range : 3.9V to 13.4V (0.1V/Step)</li> <li>Programmable Battery Voltage Regulation Range : 3.8V to 5.06V (0.02V/Step)</li> <li>Programmable End of Charge Range : 0.6A to 1.6A (0.1A/Step)</li> <li>Programmable Average Output Current Regulation Range : 0.6A to 3A (0.1A/Step)</li> <li>Junction Temperature Monitor : 60°C to 116°C (4°C/Step)</li> <li>VIN Minimum Input Voltage Regulation (MIVR) : ±3%</li> <li>Battery CV (Constant Voltage) Regulation : ±1%</li> <li>Output CC (Constant Current) Regulation, Output Current < 1A : ±100mA (VBUS = 9V/12V)</li> <li>Output CC (Constant Current) Regulation, Output Current > 1A : ±10% (VBUS = 9V/12V)</li> <li>Junction Temperature Monitor : ±3°C</li> <li>Thermal Shutdown : 160°C</li> </ul>

4. Key Performance Summary Table

<table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;margin-left:6.1pt;border-collapse:collapse; border:none"> <tr style="height:17.0pt"> <td width="34%" style="width:34.4%;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:65.6%;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:17.0pt"> <p class="ListParagraph1CxSpLast">Evaluation Board Number : PCB096_V1</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.4%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Input Voltage</p> </td> <td width="65%" style="width:65.6%;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">3.9V to 14V</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.4%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Output Voltage</p> </td> <td width="65%" style="width:65.6%;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">3.8V to 5.06V</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.4%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Max Output Current</p> </td> <td width="65%" style="width:65.6%;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">3A</p> </td> </tr> <tr style="height:17.0pt"> <td width="34%" style="width:34.4%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">Package Type</p> </td> <td width="65%" style="width:65.6%;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">RT9465GQW, WQFN-16L 3x3 (W-Type)</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_rt9465gqw/html-images/image001_en.png"><img width="491" height="409" id="圖片 2" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/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> <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;margin-left:5.4pt;border-collapse:collapse; border:none"> <thead> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="23CxSpFirst">Test point/</p> <p class="23CxSpMiddle">Pin name</p> </td> <td width="23%" style="width:23.7%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="23CxSpMiddle">Signal</p> </td> <td width="62%" style="width:62.4%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="23CxSpLast">Comment (expected waveforms or voltage levels on test points)</p> </td> </tr> </thead> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">VIN</p> </td> <td width="23%" style="width:23.7%;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">Input Voltage</p> </td> <td width="62%" style="width:62.4%;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">DC input power supply</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">VOUT</p> </td> <td width="23%" style="width:23.7%;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">Output Voltage</p> </td> <td width="62%" style="width:62.4%;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">Battery connection point to positive terminal of the battery pack.</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">GND</p> </td> <td width="23%" style="width:23.7%;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">Ground</p> </td> <td width="62%" style="width:62.4%;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">Ground.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1CxSpFirst">BAT+</p> </td> <td width="23%" style="width:23.7%;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="ListParagraph1CxSpMiddle">Positive Battery Voltage Sense</p> </td> <td width="62%" style="width:62.4%;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">Positive battery voltage sense. Conect to battery connector.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1CxSpFirst">BAT-</p> </td> <td width="23%" style="width:23.7%;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">Negative Battery Voltage Sense</p> </td> <td width="62%" style="width:62.4%;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">Negative battery voltage sense. Conect to battery connector.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">EN</p> </td> <td width="23%" style="width:23.7%;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">Enable Pin</p> </td> <td width="62%" style="width:62.4%;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">Device enable control pin. Pull low to disable device. I²C not available</p> <p class="MsoNormal">when disabled.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">INT</p> </td> <td width="23%" style="width:23.7%;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">Intterrupt</p> </td> <td width="62%" style="width:62.4%;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">Open drain interrupt output. connect to pull-up voltage via 10kΩ pull-up resistor. Normally high, the INT pin sends an active low.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">SDA</p> </td> <td width="23%" style="width:23.7%;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">SDA</p> </td> <td width="62%" style="width:62.4%;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 interface data. Connect to pull-up voltage via 10kΩ pull-up resistor.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">SCL</p> </td> <td width="23%" style="width:23.7%;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">SCL</p> </td> <td width="62%" style="width:62.4%;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 interface clock. Connect to pull-up voltage via 10kΩ pull-up resistor.</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">LX</p> </td> <td width="23%" style="width:23.7%;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">Switch node</p> </td> <td width="62%" style="width:62.4%;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">Switch node. Connect to an external inductor</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">EXTRNAL</p> </td> <td width="23%" style="width:23.7%;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">External Pull Up Voltage</p> </td> <td width="62%" style="width:62.4%;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">External pull up voltage. Connect to power supply</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">REG</p> </td> <td width="23%" style="width:23.7%;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">REG</p> </td> <td width="62%" style="width:62.4%;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">PWM low-side driver and bootstrap power supply.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">BOOT</p> </td> <td width="23%" style="width:23.7%;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">BOOT</p> </td> <td width="62%" style="width:62.4%;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">Bootstrap supply for high-side MOSFET. Connect a capacitor between BOOT and LX.</p> </td> </tr> </table>

7. Power-up & Measurement Procedure

<p class="MsoListParagraph">1. Connect input power (5V < V_BUS < 14V) and input ground to VIN and GND test pins respectively.</p> <p class="MsoListParagraph">2. Connect positive end and negative terminals of VBAT to VOUT and GND test pins respectively.</p> <p class="MsoListParagraph">3. There is a 3-pin header (JP3) for pull-up control. To use a jumper at “EXTRNAL” option to tie pull up pin to external pull up voltage. Use a jumper at “BAT+” option to tie pull-up test pin to battery.</p> <p class="MsoListParagraph">4. Connect EN pin to 3.3V to enable device and use I²C to enable charger.</p>

8. Schematic, Bill of Materials & Board Layout

<h3>EVB Schematic Diagram</h3> <p class="21"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image002_en.jpg"><img border="0" width="681" height="428" id="圖片 5" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image002_en.jpg" alt="Technical Document Image Preview" /></a></p>

9. Bill of Materials

<table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="margin-left:5.4pt;border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Reference</p> </td> <td width="6%" style="width:6.72%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Qty</p> </td> <td width="23%" style="width:23.88%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Part Number</p> </td> <td width="19%" style="width:19.18%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Description</p> </td> <td width="16%" style="width:16.46%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Package</p> </td> <td width="13%" style="width:13.86%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Manufacturer</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">U1</p> </td> <td width="6%" style="width:6.72%;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">1</p> </td> <td width="23%" style="width:23.88%;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">RT9465GQW</p> </td> <td width="19%" style="width:19.18%;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">Switching Charger</p> </td> <td width="16%" style="width:16.46%;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">WQFN-16L 3x3</p> </td> <td width="13%" style="width:13.86%;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">RICHTEK</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C1</p> </td> <td width="6%" style="width:6.72%;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">1</p> </td> <td width="23%" style="width:23.88%;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">GRM155R61E225KE11</p> </td> <td width="19%" style="width:19.18%;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">2.2µF/25V/X5R</p> </td> <td width="16%" style="width:16.46%;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">C-0402</p> </td> <td width="13%" style="width:13.86%;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">muRata</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C2</p> </td> <td width="6%" style="width:6.72%;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">1</p> </td> <td width="23%" style="width:23.88%;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">GRM155R60J475ME47</p> </td> <td width="19%" style="width:19.18%;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">4.7µF/6.3V/X5R</p> </td> <td width="16%" style="width:16.46%;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">C-0402</p> </td> <td width="13%" style="width:13.86%;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">muRata</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C4</p> </td> <td width="6%" style="width:6.72%;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">1</p> </td> <td width="23%" style="width:23.88%;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">GRM188R61A106KE69</p> </td> <td width="19%" style="width:19.18%;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">10µF/10V/X5R</p> </td> <td width="16%" style="width:16.46%;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">C-0603</p> </td> <td width="13%" style="width:13.86%;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">muRata</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C5</p> </td> <td width="6%" style="width:6.72%;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">1</p> </td> <td width="23%" style="width:23.88%;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">GRM033R61C473KE84</p> </td> <td width="19%" style="width:19.18%;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">47nF/16V/X5R</p> </td> <td width="16%" style="width:16.46%;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">C-0201</p> </td> <td width="13%" style="width:13.86%;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">muRata</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">L1</p> </td> <td width="6%" style="width:6.72%;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">1</p> </td> <td width="23%" style="width:23.88%;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">DFE252012F-1R0M</p> </td> <td width="19%" nowrap style="width:19.18%;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">1µH</p> </td> <td width="16%" style="width:16.46%;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">2.5x2.0x1.2mm</p> </td> <td width="13%" style="width:13.86%;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">muRata</p> </td> </tr> <tr style="height:17.0pt"> <td width="19%" style="width:19.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R1, R2, R3</p> </td> <td width="6%" style="width:6.72%;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">3</p> </td> <td width="23%" style="width:23.88%;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">NCP15XH103F03RC</p> </td> <td width="19%" nowrap style="width:19.18%;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">10k</p> </td> <td width="16%" style="width:16.46%;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">R-0402</p> </td> <td width="13%" style="width:13.86%;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">muRata</p> </td> </tr> </table>

10. PCB Layout

<p class="23CxSpMiddle"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image003_en.jpg"><img border="0" width="378" height="315" id="圖片 4" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image003_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="23CxSpMiddle">Top View (1^st layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image004_en.jpg"><img border="0" width="378" height="315" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image004_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_rt9465gqw/html-images/image005_en.jpg"><img border="0" width="378" height="316" id="圖片 7" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image005_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_rt9465gqw/html-images/image006_en.jpg"><img border="0" width="378" height="316" id="圖片 8" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9465gqw/html-images/image006_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal">Bottom View (4^th Layer)</p>