Name: EVB_RT9089AGQW
Brand: Richtek

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RT9089A 是一款汲入／供出追蹤式終端穩壓器，專為低成本、低外部元件數量的系統而設計。RT9089A 內建高速運算放大器，可提供快速負載暫態響應，且僅需最小 10μF 陶瓷輸出電容。RT9089A 支援遠端感測功能，並具備依據 JEDEC 規範為 DDRI／DDRII／DDRIII 與低功耗 DDRIII／DDRIV VTT 匯流排終端供電所需的所有功能。RT9089A 採用具備優異散熱效率的 WDFN-10L 2x2 封裝。

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1. Purpose

The RT9089A is a sink/source tracking termination regulator. This document explains the function and use of the RT9089A evaluation board (EVB), and provides information to enable operation, modification of the evaluation board and circuit to suit individual requirements.

2. Introduction

<h3>General Product Information</h3> The RT9089A is a sink/source tracking termination regulator. It is specifically designed for low-cost and lowexternal component count systems. The RT9089A possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 10μF ceramic output capacitor. The RT9089A supports remote sensing functions and all features required to power the DDRI/DDRII/DDRIII and Low Power DDRIII/DDRIV VTT bus termination according to the JEDEC specification. The RT9089A is available in the thermal efficient package, WDFN-10L 2x2.

3. Product Feature

<ul> <li> VIN Input Voltage Range : 1.1V to 3.5V </li> <li> VCNTL Input Voltage Range : 2.9V to 5.5V </li> <li> Support Ceramic Capacitors </li> <li> 10mA Source/Sink Reference Output </li> <li> Meet DDRI, DDRII JEDEC Spec </li> <li> Support DDRIII, Low Power DDRIII/DDRIV VTT Applications </li> <li> Soft-Start Function </li> <li> UVLO and OCP Protection </li> <li> Thermal Shutdown </li> </ul>

4. Applications

<ul> <li> Notebook/Desktop/Server </li> <li> Telecom/Datacom, GSM Base Station, LCD-TV/PDPTV, Copier/Printer, Set-Top Box </li> </ul>

5. Key Performance Summary Table

6. Bench Test Setup Conditions

<h3>Headers Description and Placement </h3> <a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image001_en.png" class="fancybox"><img width="453" height="329" width="453" height="329" id="圖片 7" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image001_en.png" /></a> 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>

7. Test Points

The EVB is provided with the test points and pin names listed in the table below. <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: 1cm;"> <td style="background: #009eb8; padding: 0cm 5.4pt; border: 1pt solid #009eb8; width: 14.76%; height: 1cm;"> Test point/ Pin name </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: 27.04%; height: 1cm;"> Signal </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: 58.2%; height: 1cm;"> Comment (expected waveforms or voltage levels on test points) </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: 14.76%; height: 17pt;"> VIN </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: 27.04%; height: 17pt;"> Input voltage </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: 58.2%; height: 17pt;"> Power input of the regulator. </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: 14.76%; height: 17pt;"> VOUT </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: 27.04%; height: 17pt;"> Output voltage </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: 58.2%; height: 17pt;"> Power output of the regulator. </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: 14.76%; height: 17pt;"> VDDQSNS </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: 27.04%; height: 17pt;"> Reference input </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: 58.2%; height: 17pt;"> Reference input. </td> </tr> <tr style="height: 39.7pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 14.76%; height: 39.7pt;"> GND </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: 27.04%; height: 39.7pt;"> Ground </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: 58.2%; height: 39.7pt;"> Analog ground. Connect to negative terminal of the output capacitor. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. </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: 14.76%; height: 17pt;"> PGND </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: 27.04%; height: 17pt;"> Power ground </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: 58.2%; height: 17pt;"> Power ground of the regulator. </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: 14.76%; height: 1cm;"> SENSE </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: 27.04%; height: 1cm;"> Voltage sense input </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: 58.2%; height: 1cm;"> Voltage sense input for the regulator. Connect to positive terminal of the output capacitor or the load. </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: 14.76%; height: 1cm;"> REFOUT </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: 27.04%; height: 1cm;"> Reference output </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: 58.2%; height: 1cm;"> Reference output. Connect to GND through a 0.1µF ceramic capacitor. </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: 14.76%; height: 17pt;"> S3 </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: 27.04%; height: 17pt;"> S3 signal input </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: 58.2%; height: 17pt;"> S3 signal input. </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: 14.76%; height: 17pt;"> S5 </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: 27.04%; height: 17pt;"> S5 signal input </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: 58.2%; height: 17pt;"> S5 signal input. </td> </tr> <tr style="height: 39.7pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 14.76%; height: 39.7pt;"> VCNTL </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: 27.04%; height: 39.7pt;"> Power good output test point </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: 58.2%; height: 39.7pt;"> Control voltage input. Connect this pin to the 3.3V or 5V power supply. A ceramic decoupling capacitor with a value 4.7µF is required. </td> </tr> </tbody> </table> </div>

8. Power-up & Measurement Procedure

1. Short J1, J8, the (1, 2) pin of J2 and the (1, 2) pin of J7 by jumper respectively. 2. Provide input voltage (2.9V < VCNTL < 5.5V) to VCNTL pin. 3. Connect input power (1.1V < VIN < 3.5V) and input ground to Vin and GND pins respectively. 4. Connect positive end and negative end of load to VOUT and GND of output pins respectively. 5. The output voltage (VOUT) can be set by the voltage level of VDDQSNS, since VDDQSNS is short with VIN : VOUT = (VDDQSNS / 2) = (VIN / 2)

9. 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: 189.5pt; height: 17pt;"> Parameter </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: 69.15pt; height: 17pt;"> Symbol </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: 62.85pt; height: 17pt;"> Min </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: 62.9pt; height: 17pt;"> Typ. </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: 62.9pt; height: 17pt;"> Max </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: 63pt; height: 17pt;"> Units </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: 189.5pt; height: 17pt;"> Control Input Voltage </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: 69.15pt; height: 17pt;"> VCNTL </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: 62.85pt; height: 17pt;"> 2.9 </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: 62.9pt; 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: 62.9pt; height: 17pt;"> 5.5 </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: 63pt; height: 17pt;"> V </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: 189.5pt; height: 17pt;"> Supply Input Voltage </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: 69.15pt; height: 17pt;"> VIN </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: 62.85pt; height: 17pt;"> 1.1 </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: 62.9pt; 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: 62.9pt; height: 17pt;"> 3.5 </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: 63pt; height: 17pt;"> V </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: 189.5pt; height: 17pt;"> VOUT Source Current Limit </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: 69.15pt; height: 17pt;"> ILIM_VOUT_SR </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: 62.85pt; height: 17pt;"> 2 </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: 62.9pt; 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: 62.9pt; 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: 63pt; height: 17pt;"> A </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: 189.5pt; height: 17pt;"> VOUT Sink Current Limit </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: 69.15pt; height: 17pt;"> ILIM_VOUT_SK </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: 62.85pt; height: 17pt;"> 2 </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: 62.9pt; 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: 62.9pt; 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: 63pt; height: 17pt;"> A </td> </tr> </tbody> </table> </div>

10. Schematic, Bill of Materials & Board Layout

<h3>EVB Schematic Diagram</h3> <a name="_Toc409666847"></a><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image002_en.jpg" class="fancybox"><img width="643" height="418" width="643" height="418" id="圖片 1" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image002_en.jpg" /></a>

11. Bill of Materials

<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: 20.84%; height: 17pt;"> Reference </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: 5.56%; height: 17pt;"> Qty </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: 25%; height: 17pt;"> Part Number </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: 18.06%; height: 17pt;"> Description </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: 16.68%; height: 17pt;"> Package </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: 13.86%; height: 17pt;"> Manufacture </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: 20.84%; height: 1cm;"> U1 </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: 5.56%; height: 1cm;"> 1 </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: 25%; height: 1cm;"> RT9089AGQW </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: 18.06%; height: 1cm;"> DDR Termination Regulator </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: 16.68%; height: 1cm;"> WDFN-10L 2x2 </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: 13.86%; height: 1cm;"> RICHTEK </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: 20.84%; height: 17pt;"> C12 </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: 5.56%; height: 17pt;"> 1 </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: 25%; height: 17pt;"> C2012X5R0J475KT00HW </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: 18.06%; height: 17pt;"> 4.7µF/6.3V/X5R </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: 16.68%; height: 17pt;"> C-0805 </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: 13.86%; height: 17pt;"> TDK </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: 20.84%; height: 17pt;"> C13 </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: 5.56%; height: 17pt;"> 1 </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: 25%; height: 17pt;"> 0805B104K500 </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: 18.06%; height: 17pt;"> 0.1µF/50V/X7R </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: 16.68%; height: 17pt;"> C-0805 </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: 13.86%; height: 17pt;"> WALSIN </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: 20.84%; height: 17pt;"> C2, C3 </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: 5.56%; height: 17pt;"> 2 </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: 25%; height: 17pt;"> C2012X5R1C106KT </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: 18.06%; height: 17pt;"> 10µF/16V/X5R </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: 16.68%; height: 17pt;"> C-0805 </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: 13.86%; height: 17pt;"> TDK </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: 20.84%; height: 17pt;"> C6 </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: 5.56%; height: 17pt;"> 1 </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: 25%; height: 17pt;"> C2012X5R1C106KT </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: 18.06%; height: 17pt; white-space: nowrap;"> 10µF/16V/X5R </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: 16.68%; height: 17pt;"> C-0805 </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: 13.86%; height: 17pt;"> TDK </td> </tr> <tr style="height: 51pt;"> <td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor #009eb8 #009eb8; padding: 0cm 5.4pt; width: 20.84%; height: 51pt;"> C1, C4, C5, C7, C8, C9, C10, C11, C14, C15, C16, C17, C18, C19, R2, R5 </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: 5.56%; height: 51pt;"> 16 </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: 25%; height: 51pt;"> </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: 18.06%; height: 51pt; white-space: nowrap;"> NC </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: 16.68%; height: 51pt;"> </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: 13.86%; height: 51pt;"> </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: 20.84%; height: 17pt;"> R1, R4 </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: 5.56%; height: 17pt;"> 2 </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: 25%; 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: 18.06%; height: 17pt;"> 0Ω </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: 16.68%; height: 17pt;"> R-0603 </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: 13.86%; height: 17pt;"> </td> </tr> </tbody> </table> </div>

12. PCB Layout

<a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image003_en.png" class="fancybox"><img width="491" height="352" width="491" height="352" 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_rt9089agqw/html-images/image003_en.png" /></a> Top View (1st layer) <a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image004_en.png" class="fancybox"><img width="491" height="352" width="491" height="352" id="圖片 4" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image004_en.png" /></a> PCB Layout—Inner Side (2nd Layer) <a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image005_en.png" class="fancybox"><img width="491" height="353" width="491" height="353" 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_rt9089agqw/html-images/image005_en.png" /></a> PCB Layout—Inner Side (3rd Layer) <a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9089agqw/html-images/image006_en.png" class="fancybox"><img width="491" height="351" width="491" height="351" 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_rt9089agqw/html-images/image006_en.png" /></a> Bottom View (4th Layer)

width

fixed-width

overviewSection

design-resources

designResourceMultipleTable

width

fixed-width

designResourceSection

i18n(tabs.related-product.title)

relatedProductTabs

i18n(tab-item.parameter-section.title)

parameterSection

parameterSectionTab

i18n(tab-item.package-size-pin-size-section.title)

packageSizePinsSizeSection

packageSizePinsSizeSectionTab

i18n(tab-item.product-feature-section.title)

productFeatureSection

productFeatureSectionTab

buttonSeeProductDifferences

text-with-icon

right

secondary-m

tertiary

i18n(button-item.see-product-differences.button-label)

i18n(button-item.see-product-differences.button-link)

_self

false

buttonFindOtherCategory

dropdown

i18n(button-item.find-other-category.button-label)

i18n(button-item.find-other-category.button-link)

_self

category-list

width

fixed-width

backgroundColor

F5F6F8

relatedProductSection

scrollable-table

parameterTable

width

fixed-width

parameterSection

normal-table

table-group

package-size-pins-size

packageSizePinsSizeTable

width

fixed-width

packageSizePinsSizeSection

productFeature

width

fixed-width

productFeatureSection

i18n(tabs.ordering-information.title)

orderingInformationTabs

i18n(tab-item.evb-section.title)

evbSection

evbSectionTab

i18n(tab-item.product-section.title)

productSection

productSectionTab

width

fixed-width

orderingInformationSection

evbImageSwitcher

normal-table

card-list

evb

evbTable

width

fixed-width

evbSection

productImageSwitcher

normal-table

card-list

products

productTable

width

fixed-width

productSection