overview

1. Purpose

<p class="MsoNormal">The RT4813A is a Boost converter with the input voltage range from 1.8V to 5.5V and provide an average output current limit range from 2.5A to 3.25A. This document explains the function and use of the RT4813A evaluation board (EVB), and provides information to enable operation, output voltage setting of the evaluation board.</p>

2. Introduction

<h3>General Product Information</h3> <p class="bady">The RT4813A allows systems to take advantage of new battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for system power ICs. By combining built-in power transistors, synchronous rectification, and low supply current; this IC provides a compact solution for systems using advanced Li-Ion battery chemistries. </p> <p class="bady">The RT4813A is a boost regulator designed to provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum. In boost mode, output voltage regulation is guaranteed to a minimum load current of 2.5A. Quiescent current in Shutdown Mode is less than 1µA, which maximizes battery life.</p>

3. Product Feature

<ul> <li> CMCOT Topology and Small Output Ripple when VIN Close VOUT Voltage </li> <li> Operates from a Single Li-ion Cell : 1.8V to 5.5V </li> <li> Adjustable Output Voltage: 1.8V to 5.5V </li> <li> PSM Operation </li> <li> Up to 96% Efficiency </li> <li> Input Over Current Limit </li> <li> Input/Output Over Voltage Protection </li> <li> Average Output Current Limit Range : 3250mA to 2500mA </li> <li> Internal Compensation </li> <li> Output Discharge </li> <li> Output Short Protection </li> <li> True Load Disconnect </li> </ul>

4. Key Performance Summary Table

<table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="100%" style="width:100.0%;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: PCB090_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">3.6V</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">Max 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">3.25A</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">V_OUT= 5V</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">RT4813AGQUF, UQFN-9L 2x2 (FC)</p> </td> </tr> </table>

5. Headers Description and Placement

<p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image001_en.png"><img width="472" height="297" id="圖片 4" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/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="97%" style="width:97.94%;border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;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="23%" style="width:23.7%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <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:1.0cm"> <p class="23CxSpLast">Comment (expected waveforms or voltage levels on test points)</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">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">Input voltage with range 1.8V to 5.5V.</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">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:17.0pt"> <p class="MsoNormal">V_OUT Enable</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">Enable control pin for VOUT.</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">SW</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">Switching 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">Switching Node.</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">PGND/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: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">SDA/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:17.0pt"> <p class="ListParagraph1CxSpMiddle">I2C Control</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">Pins to set functions such as ILIM_OFF / IPCHG.</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">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="ListParagraph1CxSpLast">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">Default voltage : 5V±1%.</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">FB</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">Feedback 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">Default voltage : 0.5V±1%.</p> </td> </tr> </table>

7. Power-up & Measurement Procedure

<p class="MsoListParagraph">1. Connect input voltage (1.8V < V_IN < 5.5V).</p> <p class="MsoListParagraph">2. To use a jumper at “H” option to tie EN pin to input voltage VIN via JP1 or external voltage for enabling the device. Inversely, to use a jumper at “L” option to tie EN pin to ground GND for disabling the device.</p> <p class="MsoListParagraph">3. To verify the output voltage V_OUT via the dividing resistors.</p> <p class="MsoListParagraph">4. To connect an external load up to 1A and verify the output voltage and current.</p>

8. I2C Register Setting

<p class="MsoNormal">The register as the table shown can be programmed by a MCU through the dedicated I2C interface. The device slave address is 0x39.</p> <p class="MsoNormal"><a name="_Toc409666845"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image003_en.jpg"><img border="0" width="850" height="477" id="圖片 1" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image003_en.jpg" alt="Technical Document Image Preview" /></a></a></p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image004_en.jpg"><img border="0" width="850" height="455" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image004_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image005_en.jpg"><img border="0" width="849" height="376" id="圖片 6" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image005_en.jpg" alt="Technical Document Image Preview" /></a></p>

9. Schematic, Bill of Materials & Board Layout

<h3>EVB Schematic Diagram </h3> <h3><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image006_en.png"><img border="0" width="849" height="641" id="圖片 7" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image006_en.png" alt="Technical Document Image Preview" /></a></h3>

10. Bill of Materials

<table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="99%" style="border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="16%" valign="top" style="width:16.96%;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="5%" valign="top" style="width:5.78%;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="22%" valign="top" style="width:22.5%;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%" valign="top" 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="20%" valign="top" style="width:20.54%;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="15%" valign="top" style="width:15.04%;border:solid #009EB8 1.0pt; border-left:none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Manufacture</p> </td> </tr> <tr style="height:17.0pt"> <td width="16%" style="width:16.96%;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="5%" style="width:5.78%;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="22%" style="width:22.5%;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">RT4813AGQUF</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">Boost Converter</p> </td> <td width="20%" style="width:20.54%;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">UQFN-9L 2x2 (FC)</p> </td> <td width="15%" style="width:15.04%;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="16%" style="width:16.96%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C1, C2, C3, C4</p> </td> <td width="5%" style="width:5.78%;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</p> </td> <td width="22%" style="width:22.5%;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">GRM21BR61A226ME51</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">22µF/10V/X7R/0805</p> </td> <td width="20%" style="width:20.54%;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-0805</p> </td> <td width="15%" style="width:15.04%;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="16%" style="width:16.96%;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="5%" style="width:5.78%;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="22%" style="width:22.5%;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">GRM185R61C105KE44D </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">1µF/16V/X5R/0603</p> </td> <td width="20%" style="width:20.54%;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="15%" style="width:15.04%;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="16%" style="width:16.96%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C6</p> </td> <td width="5%" style="width:5.78%;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="22%" style="width:22.5%;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">GRM32ER61A107ME20L</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">100µF/10V/X5R/1210</p> </td> <td width="20%" style="width:20.54%;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-1210</p> </td> <td width="15%" style="width:15.04%;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="16%" style="width:16.96%;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="5%" style="width:5.78%;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="22%" style="width:22.5%;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">SPM6530T-1R5M100</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">1.5µH</p> </td> <td width="20%" style="width:20.54%;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">L-SH8018</p> </td> <td width="15%" style="width:15.04%;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">TDK</p> </td> </tr> <tr style="height:17.0pt"> <td width="16%" style="width:16.96%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R1</p> </td> <td width="5%" style="width:5.78%;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="22%" style="width:22.5%;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">PFR059093FNH</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">909K/0402/1%</p> </td> <td width="20%" style="width:20.54%;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="15%" style="width:15.04%;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">乾坤</p> </td> </tr> <tr style="height:17.0pt"> <td width="16%" style="width:16.96%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R2</p> </td> <td width="5%" style="width:5.78%;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="22%" style="width:22.5%;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">PFR05104FNH</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">100K/0402/1%</p> </td> <td width="20%" style="width:20.54%;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="15%" style="width:15.04%;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">乾坤</p> </td> </tr> </table>

11. PCB Layout

<p class="23CxSpMiddle"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image007_en.jpg"><img border="0" width="473" height="297" id="圖片 11" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image007_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_rt4813agquf/html-images/image008_en.jpg"><img border="0" width="473" height="297" id="圖片 12" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image008_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_rt4813agquf/html-images/image009_en.jpg"><img border="0" width="473" height="297" id="圖片 13" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image009_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_rt4813agquf/html-images/image010_en.jpg"><img border="0" width="473" height="297" id="圖片 14" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt4813agquf/html-images/image010_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="10">Bottom View (4^th Layer)</p>