overview

1. Purpose

<p class="MsoNormal">The RT9073A is a low-dropout (LDO) voltage regulators with enable function that operates from 1.2V to 5.5V. It provides up to 250mA of output current and offers low-power operation in miniaturized packaging.</p> <p class="MsoNormal">The features of low quiescent current as low as 1µA and almost zero disable current is ideal for powering the battery equipment to a longer service life. The RT9073A is stable with the ceramic output capacitor over its wide input range from 1.2V to 5.5V and the entire range of output load current (0mA to 250mA).</p>

2. Introduction

<h3>General Product Information</h3> <p class="bady">The RT9073A is a low quiescent current linear regulator designed especially for low external components system. The input voltage range is from 1.2V to 5.5V. The RT9073A builds in a P-MOSFET output transistor which provides a low switch-on resistance for low dropout voltage applications.</p> <p class="bady">The Error Amplifier compares the internal reference voltage with the output feedback voltage from the internal divider, and controls the Gate voltage of P-MOSFET to support good line regulation and load regulation at output voltage.</p>

3. Product Feature

<ul> <li> 1µA Ground Current at no Load </li> <li> PSRR = 75dB at 1kHz </li> <li> Adjustable Output Voltage Available by Specific Application </li> <li> ±2% Output Accuracy </li> <li> 250mA (V_IN ≥ 2.3V) Output Current with EN </li> <li> Low (0.1µA) Disable Current </li> <li> 1.2V to 5.5V Operating Input Voltage </li> <li> Dropout Voltage : 0.5V at 250mA when V_OUT ≥ 3V </li> <li> Support Fixed Output Voltage 3.3V </li> <li> Stable with Ceramic or Tantalum Capacitor </li> <li> Current Limit Protection </li> <li> Over Temperature Protection </li> <li> ZQFN-4L 1x1 Packages Available </li> </ul>

4. Key Performance Summary Table

<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: 34.94%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">Key Features</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: 65.06%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Evaluation Board Number : PCB045_V1</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: 34.94%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">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: 65.06%; height: 17pt;"> <p class="ListParagraph1CxSpLast">1.2V to 5.5V</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: 34.94%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">Output Current Limit</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: 65.06%; height: 17pt;"> <p class="ListParagraph1CxSpLast">350mA</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: 34.94%; height: 17pt;"> <p class="MsoNormal">Power Supply Rejection Ratio</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: 65.06%; height: 17pt;"> <p class="ListParagraph1">75dB</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: 34.94%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">Default Marking & Package Type</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: 65.06%; height: 17pt;"> <p class="ListParagraph1CxSpLast">RT9073A-33GQZ, ZQFN-4L 1x1</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: 34.94%; height: 17pt;"> <p class="ListParagraph1CxSpFirst">VCC Consumption 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: 65.06%; height: 17pt;"> <p class="ListParagraph1CxSpLast">1µA</p> </td> </tr> </tbody> </table> </div>

5. Bench Test Setup Conditions

<h3>Headers Description and Placement</h3> <p class="MsoNormal"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9073a-33gqz/html-images/image001_en.jpg" class="fancybox"><img width="416" height="283" width="416" height="283" id="圖片 2" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9073a-33gqz/html-images/image001_en.jpg" /></a></p> <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>

6. Test Points

<p class="MsoNormal">The EVB is provided with the test points and pin names listed in the table below.</p> <table width="680" class="MsoTableLightListAccent2" style="border: currentColor; width: 510.2pt; margin-left: 5.4pt; 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: 13.9%; height: 1cm;"> <p class="23CxSpFirst">Test point/</p> <p class="23CxSpMiddle">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: 27.78%; height: 1cm;"> <p class="23CxSpMiddle">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: 58.32%; height: 1cm;"> <p class="23CxSpLast">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: 13.9%; height: 17pt;"> <p class="ListParagraph1">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: 27.78%; height: 17pt;"> <p class="MsoNormal">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: 58.32%; height: 17pt;"> <p class="MsoNormal">Default output voltage = 3.3V.</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: 13.9%; height: 17pt;"> <p class="ListParagraph1">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: 27.78%; height: 17pt;"> <p class="MsoNormal">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: 58.32%; height: 17pt;"> <p class="MsoNormal">Ground.</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: 13.9%; 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: 27.78%; height: 17pt;"> <p class="ListParagraph1CxSpMiddle">Enable</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: 58.32%; height: 17pt;"> <p class="ListParagraph1CxSpLast">Enable Control Input.</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: 13.9%; 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: 27.78%; height: 17pt;"> <p class="ListParagraph1CxSpLast">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: 58.32%; height: 17pt;"> <p class="MsoNormal">Input voltage range = 1.2V to 5.5V.</p> </td> </tr> </tbody> </table>

7. Power-up & Measurement Procedure

<p class="Default">1. Connect input power (1.2V < V_IN < 5.5V) to VIN test pin.</p> <p class="Default">2. VIN/VOUT placed 1µF capacitor.</p> <p class="Default">3. Observe the output voltage is correct.</p>

8. Schematic, Bill of Materials & Board Layout

<h3>EVB Schematic Diagram</h3> <p class="21"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9073a-33gqz/html-images/image002_en.jpg" class="fancybox"><img width="453" height="200" width="453" height="200" 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_rt9073a-33gqz/html-images/image002_en.jpg" /></a></p>

9. Bill of Materials

<div> <table width="680" class="MsoNormalTable" 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 1.4pt; border: 1pt solid #009eb8; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 22.85pt; height: 17pt;"> <p class="MsoNormal">Qty</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 1.4pt; width: 120.5pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Part Number</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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">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 1.4pt; width: 72.15pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 85.6pt; 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 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">RT9073A-33GQZ</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Single Output LDO</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">ZQFN-4L 1x1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 72.15pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Richtek</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 1.4pt; width: 85.6pt; height: 17pt; 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 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">C2012X7R1E105KT00HN</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">1µF/25V</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">C-0805</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 72.15pt; height: 17pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">GP1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">SIP-1P-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 1.4pt; width: 72.15pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">GP2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">SIP-1P-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 1.4pt; width: 72.15pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">GP3, GP4</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">SIP-1P-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 1.4pt; width: 72.15pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">R1, 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 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">WR06X1002F</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">10k</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">R-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 1.4pt; width: 72.15pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">WALSIN</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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">TP1</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">SIP-1P-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 1.4pt; width: 72.15pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">TP2</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">SIP-1P-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 1.4pt; width: 72.15pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Z1, Z2, Z3, Z4</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">SIP-1P-M</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">SIP-1P-M</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 72.15pt; 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 1.4pt; width: 85.6pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">Z5, Z6</p> </td> <td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor #009eb8 #009eb8 currentColor; padding: 0cm 1.4pt; width: 22.85pt; height: 17pt;"> <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 1.4pt; width: 120.5pt; 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 1.4pt; width: 116.8pt; height: 17pt; white-space: nowrap;"> <p class="MsoNormal">FK_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 1.4pt; width: 92.3pt; height: 17pt;"> <p class="MsoNormal">FK_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 1.4pt; width: 72.15pt; height: 17pt; white-space: nowrap;"> </td> </tr> </tbody> </table> </div>

10. PCB Layout

<p class="23CxSpFirst"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9073a-33gqz/html-images/image003_en.jpg" class="fancybox"><img width="491" height="332" width="491" height="332" 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_rt9073a-33gqz/html-images/image003_en.jpg" /></a></p> <p class="23CxSpLast">Top View</p> <p class="MsoNormal"><a href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9073a-33gqz/html-images/image004_en.jpg" class="fancybox"><img width="491" height="333" width="491" height="333" id="圖片 3" style="border-width: 0px; border-style: solid;" alt="Technical Document Image Preview" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9073a-33gqz/html-images/image004_en.jpg" /></a></p> <p class="23">Bottom View</p>