overview

1. Purpose

<p class="MsoNormal">The RT2872 is a high-efficiency current mode synchronous step-down regulator that can deliver up to 3A output current from a wide input voltage range of 4.5V to 36V. This document explains the function and use of the RT2872 evaluation board (EVB) and provides information to enable operation and modification of the evaluation board and circuit to suit individual requirements. </p>

2. Introduction

<h3>General Product Description</h3> <p class="bady">The RT2872 is a high efficiency, current mode synchronous step-down DC/DC converter that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V. The device integrates a 105mΩ high side and an 80mΩ low side MOSFET to achieve high conversion efficiency up to 95%. The current mode control architecture supports fast transient response and uses a simple compensation circuit.</p> <p class="bady">A cycle-by-cycle current limit function provides protection against a shorted output and an internal soft-start eliminates input surge current during start-up. The RT2872 provides complete protection functions such as input under voltage lockout, output under voltage protection, over current protection and thermal shutdown. </p> <p class="bady">The RT2872 is available in the thermal enhanced SOP-8 (Exposed Pad) package.</p> <h3>Product Features</h3> <ul> <li>4.5V to 36V Input Voltage Range</li> <li>3A Output Current</li> <li>Internal N-MOSFETs</li> <li>Current Mode Control</li> <li>Frequency Operation : 300kHz to 1MHz</li> <li>Adjustable Output Voltage from 0.8V to 30V</li> <li>High Efficiency Up to 95%</li> <li>Stable with Low ESR Ceramic Output Capacitors</li> <li>Cycle-by-Cycle Current Limit</li> <li>AEC-Q100 Grade 3 Certification</li> </ul>

3. Application

<ul> <li>Point of Load Regulator in Distributed Power Systems</li> <li>Digital Set Top Boxes</li> <li>Broadband Communications</li> <li>Vehicle Electronics</li> <li>Automotive Audio, Navigation, and Information Systems</li> <li>Enterprise Datacom Platforms Point of Load (POL)</li> <li>Industrial Grade General Purpose Point of Load</li> </ul>

4. Evaluation Board

<h3 class="MsoNormal"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image001_en.jpg" class="fancybox"><img width="406" height="292" width="406" height="292" id="圖片 1" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image001_en.jpg" /></a></h3> <p class="2">Please carefully inspect the EVB IC and external components, comparing them to the following Bill of Materials, to ensure that all components are installed and undamaged. If any components are missing or damaged during transportation, please contact the distributor or send e-mail to <a href="mailto:evb_service@richtek.com" class="link">evb_service@richtek.com</a></p> <h3 class="21">Test Points</h3> <p class="MsoNormal">The EVB is provided with the test points and pin names listed in the table below.</p> <div> <table width="680" class="MsoTableLightListAccent2" style="border: currentColor; width: 18cm; border-collapse: collapse;" border="1" cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 17pt;"> <td style="background: #009eb8; padding: 0cm 5.4pt; border: 1pt solid #009eb8; width: 19.22%; height: 17pt;"> <p class="10CxSpFirst">Test point/Pin name</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="10CxSpMiddle">Signal</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="10CxSpLast">Comment (expected waveforms or voltage levels on test points)</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">VIN</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Input voltage</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Input voltage range = 4.5V to 36V</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">VOUT</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Output voltage </p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Default output voltage = 3.3V</p> <p class="ListParagraph1CxSpMiddle">Output voltage range = 0.8V to 30V </p> <p class="ListParagraph1CxSpLast">(see ‘’ Output Voltage Setting’’ section for changing output voltage level)</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">SW</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Switch Node</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpLast">SW waveform</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">EN</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Chip Enable Operation</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Enable signal. EN is automatically pulled high (by R4) to enable operation. Connect EN low to disable operation.</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">BOOT</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Boot strap supply test point</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Floating supply voltage for the high-side N-MOSFET switch</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">MODE</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">RT test point</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Switch frequency setting point</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 19.22%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">GND</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 26.32%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Ground</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 54.46%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Ground</p> </td> </tr> </tbody> </table> </div> <h3 class="21">Power-up & Measurement Procedure</h3> <p class="ListParagraph1CxSpFirst">1. Apply a 12V nominal input power supply (4.5V < V_IN < 36V) to the VIN and GND terminals.</p> <p class="ListParagraph1CxSpMiddle">2. The EN voltage is pulled to logic high by R4 (100kΩ to VIN) to enable operation. Drive EN high (>2.0V) to enable operation or low (<0.4V) to disable operation.</p> <p class="ListParagraph1CxSpMiddle">3. Verify the output voltage (approximately 3.3V) between VOUT and GND.</p> <p class="ListParagraph1CxSpLast">4. Connect an external load up to 3A to the VOUT and GND terminals and verify the output voltage and current. </p> <h3 class="21">Output Voltage Setting</h3> <p class="MsoNormal">Set the output voltage with the resistive divider (R1, R2) between VOUT and GND with the midpoint connected to FB through RCAMP. The output is set by the following formula:</p> <p class="MsoNormal"><a href="~/media/Richtek/Design%20Support/Technical%20Documentation/UG2872GSP/EN/Version1/image002.gif" class="fancybox"><img style="border-width: 0px; border-style: solid; width: 139px; height: 36px;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image004_en.gif" /></a> </p> <p class="MsoNormal">The installed V_OUT capacitors (C4, C5) are 22μF, 16V X5R ceramic types. Do not exceed their operating voltage range and consider their voltage coefficient (capacitance vs. bias voltage) and ensure that the capacitance is sufficient to maintain stability and provide sufficient transient response for your application. This can be verified by checking the output transient response as described in the RT2872 IC datasheet.</p>

5. Specification

<div> <table width="680" class="MsoTableLightListAccent2" style="border: currentColor; width: 510.2pt; border-collapse: collapse;" border="1" cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 17pt;"> <td style="background: #009eb8; padding: 0cm 5.4pt; border: 1pt solid #009eb8; width: 188.3pt; height: 17pt;"> <p class="TableTitleDS">Parameter</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 67.7pt; height: 17pt;"> <p class="TableTitleDS">Symbol</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="TableTitleDS">Min</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="TableTitleDS">Typ.</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="TableTitleDS">Max</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="TableTitleDS">Units</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 188.3pt; height: 17pt;"> <p class="Tablebadyright">Input Voltage Range</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 67.7pt; height: 17pt;"> <p class="Tablebadycenter">V_IN</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">4.5</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">36</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">V</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 188.3pt; height: 17pt;"> <p class="Tablebadyright">Output Voltage</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 67.7pt; height: 17pt;"> <p class="Tablebadycenter">V_OUT</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">3.3</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">V</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 188.3pt; height: 17pt;"> <p class="Tablebadyright">Oscillator Frequency</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 67.7pt; height: 17pt;"> <p class="Tablebadycenter">f_OSC</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">300k</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">1M</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">Hz</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 188.3pt; height: 17pt;"> <p class="Tablebadyright">Output Current</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 67.7pt; height: 17pt;"> <p class="Tablebadycenter">I_OUT</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">3</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">A</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 188.3pt; height: 17pt;"> <p class="Tablebadyright">High-Side Switch Current Limit Range</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 67.7pt; height: 17pt;"> <p class="Tablebadycenter">U_OC</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">4.25</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">5</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">5.75</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 63.55pt; height: 17pt;"> <p class="Tablebadycenter">A</p> </td> </tr> </tbody> </table> </div>

6. Schematic

<p class="a5"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image004_en.jpg" class="fancybox"><img width="680" height="333" width="680" height="333" id="圖片 2" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image004_en.jpg" /></a></p>

7. BOM

<div> <table width="680" class="MsoTableLightListAccent2" style="border: currentColor; border-collapse: collapse;" border="1" cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 17pt;"> <td style="background: #009eb8; padding: 0cm 5.4pt; border: 1pt solid #009eb8; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="TableTitleDS">Reference</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="TableTitleDS">Q'ty</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"> <p class="TableTitleDS">P/N</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="TableTitleDS">Description</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="TableTitleDS">Package</p> </td> <td style="background: #009eb8; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: #009eb8 #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"> <p class="TableTitleDS">Manufacture</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">U1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">RT2872GSP</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">DC/DC Converter</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">PSOP-8</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Richtek</p> </td> </tr> <tr style="height: 1cm;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">C1, C2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">C3216X5R1H106K160AB</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">10μF/±10%/50V/X5R<br /> Ceramic Capacitor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">1206</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">TDK</p> </td> </tr> <tr style="height: 1cm;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 1cm;"> <p class="MsoNormal">C4, C5</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">GRM32ER61C226KE20#</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">22μF/±10%/16V/X5R<br /> Ceramic Capacitor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">1210</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">Murata</p> </td> </tr> <tr style="height: 1cm;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">C7</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">0603B272K500</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">2.7nF/±10%/50V/X7R Ceramic Capacitor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height: 1cm;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">C3, C6, C11</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">3</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">C1608X7R1H104K080AA</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">0.1μF/±10%/50V/X7R<br /> Ceramic Capacitor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 1cm; white-space: nowrap;"> <p class="MsoNormal">TDK</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">C8, C9, C12, C13</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Not Installed</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">L1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">NR8040T4R7N</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">4.7μH/4.1A</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">8 x 8 x 4.2mm</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">TAIYO YUDEN</p> </td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">75kΩ/±1%, Resistor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">24kΩ/±1%, Resistor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R3</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">13kΩ/±1%, Resistor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R4</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">100kΩ/±1%, Resistor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R5, D1, D2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Not Installed</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R6, RCAMP</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0Ω, Resistor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">RT</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">113kΩ/±1%, Resistor</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">0603</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">TP</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">4</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Test Pin</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> <tr style="height: 17pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 77.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">GP</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 28.7pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">4</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 116.9pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 117.55pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Golden Pin</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 98.7pt; height: 17pt; white-space: nowrap;"></td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 5.4pt; width: 70.65pt; height: 17pt; white-space: nowrap;"></td> </tr> </tbody> </table> </div>

8. PCB Layout

<p class="10CxSpFirst"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image005_en.gif" class="fancybox"><img width="495" height="354" width="495" height="354" id="圖片 5" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image005_en.gif" /></a></p> <p class="10CxSpMiddle">Top View (1^st layer)</p> <p class="10CxSpMiddle"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image006_en.gif" class="fancybox"><img width="495" height="354" width="495" height="354" id="圖片 6" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image006_en.gif" /></a></p> <p class="10CxSpLast">Bottom View (4^th Layer)</p> <p class="10CxSpFirst"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image007_en.gif" class="fancybox"><img width="431" height="303" width="431" height="303" id="圖片 7" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image007_en.gif" /></a></p> <p class="10CxSpMiddle">Component Placement Guide—Component Side (1^st layer)</p> <p class="10CxSpMiddle"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image008_en.gif" class="fancybox"><img width="430" height="309" width="430" height="309" id="圖片 8" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image008_en.gif" /></a></p> <p class="10CxSpMiddle">PCB Layout—Component Side (1^st Layer)</p> <p class="10CxSpMiddle"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image009_en.gif" class="fancybox"><img width="413" height="295" width="413" height="295" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image009_en.gif" /></a></p> <p class="10CxSpMiddle">PCB Layout—Inner Side (2^nd Layer)</p> <p class="10CxSpMiddle"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image010_en.gif" class="fancybox"><img width="413" height="295" width="413" height="295" id="圖片 10" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image010_en.gif" /></a></p> <p class="10CxSpMiddle">PCB Layout—Inner Side (3^rd Layer)</p> <p class="10CxSpMiddle"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image011_en.gif" class="fancybox"><img width="417" height="295" width="417" height="295" id="圖片 11" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image011_en.gif" /></a></p> <p class="10CxSpMiddle">Component Placement Guide—Bottom Side (4^th Layer)</p> <p class="10CxSpMiddle"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image012_en.gif" class="fancybox"><img width="411" height="295" width="411" height="295" id="圖片 12" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image012_en.gif" /></a></p> <p class="10CxSpMiddle">PCB Layout—Bottom Side (4^th layer)</p>

9. Step-Down Converter Efficiency Test

<p class="a5"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image013_en.jpg" class="fancybox"><img width="448" height="378" width="448" height="378" id="圖片 9" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt2872gsp/html-images/image013_en.jpg" /></a></p>