overview

1. General Description

<p class="bady">The RT5760A is a full featured 6V, 1A, Advanced Constant-On-Time (ACOT^®) synchronous step-down converter with two integrated MOSFETs. This document explains the function and use of the RT5760A evaluation board (EVB) and provides information for the evaluation board layout, schematic, bill of materials (BOM) and measurement results to suit individual requirements. </p>

2. Performance Specification Summary

<p class="bady">Summary of the RT5760AHGH6F Evaluation Board performance specificiaiton is provided in Table 1. The ambient temperature is 25°C.</p> <p class="MsoNormal">Table 1. RT5760AHGH6F Evaluation Board Performance Specification Summary</p> <div> <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Specification</p> </td> <td width="277" style="width:207.8pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">Test Conditions</p> </td> <td width="45" style="width:33.9pt;border:solid #009EB8 1.0pt;border-left:none; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">Min</p> </td> <td width="45" style="width:33.9pt;border:solid #009EB8 1.0pt;border-left:none; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">Typ</p> </td> <td width="45" style="width:33.95pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">Max</p> </td> <td width="59" style="width:44.3pt;border:solid #009EB8 1.0pt;border-left:none; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Unit</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Input Voltage Range</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">2.5</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">6</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">V</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Output Current</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">0</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">1</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">A</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Default Output Voltage</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">1</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">V</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Operation Frequency</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">2.2</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">MHz</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Output Ripple Voltage</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">I_OUT = 1A</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">10</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">mVp-p</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Line Regulation</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">I_OUT = 1A, V_IN = 2.5V to 6V</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">±1</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">%</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Load Regulation</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">V_IN = 5V, I_OUT = 0.001A to 1A</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">±1</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">%</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Load Transient Response</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">I_OUT = 0A to 1A</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">±5</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">%</p> </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpFirst">Efficiency</p> </td> <td width="277" style="width:207.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">V_IN = 5V, V_OUT = 1V, I_OUT = 0.4A</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="45" style="width:33.9pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpMiddle">85.8</p> </td> <td width="45" style="width:33.95pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpMiddle">--</p> </td> <td width="59" style="width:44.3pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> <p class="ListParagraph1CxSpLast">%</p> </td> </tr> </table> </div>

3. Power-up Procedure

<h3>Suggestion Required Equipments</h3> <ul> <li>RT5760AHGH6F Evaluation Board </li> <li>DC power supply capable of at least 6V and 1A</li> <li>Electronic load capable of 1A</li> <li>Function Generator</li> <li>Oscilloscope</li> </ul>

4. Quick Start Procedures

<p class="bady">The Evaluation Board is fully assembled and tested. Follow the steps below to verify board operation. Do not turn on supplies until all connections are made. When measuring the output voltage ripple, care must be taken to avoid a long ground lead on the oscilloscope probe. Measure the output voltage ripple by touching the probe tip and ground ring directly across the last output capacitor. </p>

5. Proper measurement equipment setup and follow the procedure below.

<p class="MsoNormal">1) With power off, connect the input power supply to VIN and GND pins.</p> <p class="MsoNormal">2) With power off, connect the electronic load between the VOUT and nearest GND pins. </p> <p class="MsoNormal">3) Turn on the power supply at the input. Make sure that the input voltage does not exceeds 60V on the Evaluation Board.</p> <p class="MsoNormal">4) Check for the proper output voltage using a voltmeter. </p> <p class="MsoNormal">5) Once the proper output voltage is established, adjust the load within the operating ranges and observe the output voltage regulation, ripple voltage, efficiency and other performance.</p>

6. Detailed Description of Hardware

<h3>Headers Description and Placement </h3> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image001_en.jpg"><img width="491" height="353" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image001_en.jpg" alt="Technical Document Image Preview" /></a></p> <p class="2">Carefully inspect all the components used in the EVB according to the following Bill of Materials table, and then make sure all the components are undamaged and correctly installed. If there is any missing or damaged component, which may occur during transportation, please contact our distributors or e-mail us at <a href="mailto:evb_service@richtek.com" class="link">evb_service@richtek.com</a>.</p>

7. Test Points

<p class="MsoNormal">The EVB is provided with the test points and pin names listed in the table below.</p> <div> <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="23CxSpFirst">Test Point</p> </td> <td width="27%" style="width:27.74%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="23CxSpMiddle">Signal</p> </td> <td width="58%" style="width:58.36%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="23CxSpLast">Comment (expected waveforms or voltage levels on test points)</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1">VIN</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Input Voltage</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="Default">Positive input voltage from the power supply to the EVB.</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">VOUT</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Output Voltage</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="Default">Positive output voltage from the EVB to the loads.</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">JP1</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Output Voltage Test Point</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="Default">Output voltage measurement point.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">GND</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Ground</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="Default">Reference voltage for input voltage, output voltage and other test points.</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">LX</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Switch Node Test Point</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="Default">Frequency measurement point. 2.2MHz (Typ.) in CCM mode.</p> </td> </tr> <tr style="height:17.0pt"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpFirst">PG</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="ListParagraph1CxSpLast">Power Good Test Point</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="Default">Power good indicator. Pull low for fault condition.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">EN</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Enable Test Point</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="Default">Enable control input. Connect this pin to logic high to enable the device.</p> </td> </tr> <tr style="height:1.0cm"> <td width="13%" style="width:13.9%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="ListParagraph1">JP2</p> </td> <td width="27%" style="width:27.74%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">EN Pin Jumper</p> </td> <td width="58%" style="width:58.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="Default">Place the jumper across on EN and H to enable the device. Place the jumper across on EN and L to disable the device.</p> </td> </tr> </table> </div>

8. Power-up & Measurement Procedure

<p class="MsoListParagraph">1. Connect a input power supply to the VIN and GND terminals and an electrical load to the VOUT and GND terminals.</p> <p class="MsoListParagraph">2. Set the jumper at JP2 to tie “EN” test pin to “H” pin for enabling the chip.</p> <p class="MsoListParagraph">3. Apply a 5V nominal input power supply (2.5V < V_IN < 6V) to the VIN and GND terminals respectively.</p> <p class="MsoListParagraph">4. Set the electrical load up to 1A to Verify the output voltage (approximately 1V) at JP1. Check LX frequency is around 2.2MHz in CCM mode.</p>

9. Output Voltage Setting

<p class="MsoNormal">Set the output voltage with the resistive divider (R1, R2) between VOUT and GND with the midpoint connected to FB. The output is set by the following formula :</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image002_en.png"><img width="135" height="48" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image002_en.png" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal">The placement of the resistive divider should be within 5mm of the FB pin. The resistance of R2 is suggested to 10kΩ for noise pick-up at the FB pin. The resistance of R1 can then be obtained as below :</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image003_en.png"><img width="140" height="48" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image003_en.png" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal">For better output voltage accuracy, divider resistors (R1 and R2) should have tolerance of ±1% tolerance or better.</p>

10. Bill of Materials

<div> <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Reference</p> </td> <td width="6%" style="width:6.18%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Qty</p> </td> <td width="25%" style="width:25.92%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Part Number</p> </td> <td width="26%" style="width:26.04%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Description</p> </td> <td width="12%" style="width:12.36%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Package</p> </td> <td width="15%" style="width:15.14%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Manufacturer</p> </td> </tr> <tr style="height:1.0cm"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">U1</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">RT5760AHGH6F</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Step-Down </p> <p class="MsoNormal">DC-DC Converter</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">SOT-563</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C1, C4, C5</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">3</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">NC</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C2, C6</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">2</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">0603X106M6R3CT</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">10µF/6.3V/X5R/0603</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C3</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C1005X7R1C104K050BC</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">100nF/16V/X7R/0402</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C-0402</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">TDK</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C7</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C1608X7R1H104K080AA</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">100nF/50V/X7R/0603</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">C-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">TDK</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">L1</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">DFE252010F-1R0M</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1µH</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">L-2520</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Murata</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R1</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WR06X6651FTL</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">6.65K/0603</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R2</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WR06X1002FTL</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">10K/0603</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R3, R4</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">2</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WR06X1003FTL</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">100K/0603</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border-top:none;border-left:solid #009EB8 1.0pt; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R5</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">NC</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.36%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R6</p> </td> <td width="6%" style="width:6.18%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">1</p> </td> <td width="25%" style="width:25.92%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WR06X000 PTL</p> </td> <td width="26%" style="width:26.04%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">0/0603</p> </td> <td width="12%" style="width:12.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">R-0603</p> </td> <td width="15%" style="width:15.14%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">WALSIN</p> </td> </tr> </table> </div>

11. Typical Applications

<h3>EVB Schematic Diagram</h3> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image004_en.png"><img border="0" width="680" height="216" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image004_en.png" alt="Technical Document Image Preview" /></a></p> <p class="MsoNormal">Note:</p> <p class="MsoListParagraph">1. Do not hot-plug a live 5V supply to the board. If hot-plugging is required, add ~ 100µF electrolytic capacitor at the input.</p>

12. Measurement Results

<div> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="680" style="border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="342" style="width:256.5pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Power-On from VIN </p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Pink: VIN; Green: PG</p> </td> <td width="342" style="width:256.55pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Power-Off from VIN </p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Pink: VIN Green: PG</p> </td> </tr> <tr style="height:17.0pt"> <td width="342" style="width:256.5pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image005_en.png"><img border="0" width="338" height="230" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image005_en.png" alt="Technical Document Image Preview" /></a></p> </td> <td width="342" style="width:256.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image006_en.png"><img border="0" width="338" height="230" id="圖片 2" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image006_en.png" alt="Technical Document Image Preview" /></a></p> </td> </tr> <tr style="height:17.0pt"> <td width="342" style="width:256.5pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 1A</p> </td> <td width="342" style="width:256.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 1A</p> </td> </tr> </table> </div> <div> <table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="340" style="width:254.85pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Power-On from EN </p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Pink: EN; Green: PG</p> </td> <td width="340" style="width:254.85pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Power-Off from EN </p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Pink: EN; Green: PG</p> </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:254.85pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image007_en.png"><img border="0" width="340" height="227" id="圖片 16" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image007_en.png" alt="Technical Document Image Preview" /></a></p> </td> <td width="340" style="width:254.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image008_en.png"><img border="0" width="340" height="227" id="圖片 17" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image008_en.png" alt="Technical Document Image Preview" /></a></p> </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:254.85pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 1A</p> </td> <td width="340" style="width:254.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 1A</p> </td> </tr> </table> </div> <div> <table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="338" style="width:253.15pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Output Ripple Measurement</p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX</p> </td> <td width="342" style="width:256.55pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">Output Ripple Measurement</p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX</p> </td> </tr> <tr style="height:17.0pt"> <td width="338" style="width:253.15pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image009_en.png"><img border="0" width="327" height="230" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image009_en.png" alt="Technical Document Image Preview" /></a></p> </td> <td width="342" style="width:256.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image010_en.png"><img border="0" width="335" height="227" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image010_en.png" alt="Technical Document Image Preview" /></a></p> </td> </tr> <tr style="height:1.0cm"> <td width="338" style="width:253.15pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 0.01A</p> <p class="MsoNormal">Output ripple: 17.6mVpp (PSM)</p> </td> <td width="342" style="width:256.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 1A</p> <p class="MsoNormal">Output ripple: 4mVpp, Frequency: 2.164MHz (CCM)</p> </td> </tr> </table> </div> <table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="Default">Fast Dynamic Load </p> <p class="Default">Yellow: VOUT; Cyan: LX; Pink: IOUT</p> </td> <td width="340" style="width:254.9pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="Default">Fast Dynamic Load </p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Pink: IOUT</p> </td> </tr> <tr style="height:17.0pt"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image011_en.png"><img border="0" width="330" height="227" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image011_en.png" alt="Technical Document Image Preview" /></a></p> </td> <td width="340" style="width:254.9pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image012_en.png"><img border="0" width="330" height="227" id="圖片 13" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image012_en.png" alt="Technical Document Image Preview" /></a></p> </td> </tr> <tr style="height:1.0cm"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 0.01A to 0.5A (SR = 1A/µs)</p> <p class="MsoNormal">Output ripple: 45.6mVpp</p> </td> <td width="340" style="width:254.9pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 0.5A to 1A (SR = 1A/µs)</p> <p class="MsoNormal">Output ripple: 52.8mVpp</p> </td> </tr> </table> <div> <table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:1.0cm"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">OCP Function</p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Green: Inductor current</p> </td> <td width="336" style="width:251.8pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> <p class="MsoNormal">UVP Function</p> <p class="MsoNormal">Yellow: VOUT; Cyan: LX; Green: Inductor current</p> </td> </tr> <tr style="height:17.0pt"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image013_en.png"><img border="0" width="336" height="227" id="圖片 14" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image013_en.png" alt="Technical Document Image Preview" /></a></p> </td> <td width="336" style="width:251.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:17.0pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image014_en.png"><img border="0" width="328" height="227" id="圖片 15" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image014_en.png" alt="Technical Document Image Preview" /></a></p> </td> </tr> <tr style="height:51.0pt"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:51.0pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 0A to OCP (Gradually increase load)</p> <p class="MsoNormal">Low-side current limit is 1.581A</p> <p class="MsoNormal">High-side current limit is 2.711A</p> </td> <td width="336" style="width:251.8pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:51.0pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 0A (Output short and recovery)</p> </td> </tr> </table> </div> <table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <p class="MsoNormal">Bode Plot</p> </td> <td width="336" style="width:252.15pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> </tr> <tr style="height:166.35pt"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:166.35pt"> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image015_en.jpg"><img border="0" width="329" height="215" id="圖片 4" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image015_en.jpg" alt="Technical Document Image Preview" /></a></p> </td> <td width="336" style="width:252.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 1.4pt 0cm 1.4pt;height:166.35pt"> </td> </tr> <tr style="height:39.7pt"> <td width="344" style="width:257.9pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> <p class="MsoNormal">V_IN = 5V, V_OUT = 1V, I_OUT = 1A</p> <p class="MsoNormal">Bandwidth = 402kHz</p> <p class="MsoNormal">Phase Margin = 56.4</p> </td> <td width="336" style="width:252.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:39.7pt"> </td> </tr> </table>

13. Efficiency Measurements

<p class="MsoNormal"><a name="_Toc409666847"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image016_en.png"><img border="0" width="523" height="308" id="圖片 8" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image016_en.png" alt="Technical Document Image Preview" /></a></a></p>

14. Evaluation Board Layout

<p class="23CxSpFirst"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image017_en.png"><img border="0" width="491" height="352" id="圖片 1" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image017_en.png" alt="Technical Document Image Preview" /></a></p> <p class="23CxSpLast">Figure 1. Top View (1^st layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image018_en.png"><img border="0" width="491" height="352" id="圖片 12" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image018_en.png" alt="Technical Document Image Preview" /></a></p> <p class="10">Figure 2. PCB Layout—Inner Side (2^nd Layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image019_en.png"><img border="0" width="491" height="353" id="圖片 6" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image019_en.png" alt="Technical Document Image Preview" /></a></p> <p class="10">Figure 3. PCB Layout—Inner Side (3^rd Layer)</p> <p class="MsoNormal"><a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image020_en.png"><img border="0" width="491" height="352" id="圖片 7" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt5760ahgh6f/html-images/image020_en.png" alt="Technical Document Image Preview" /></a></p> <p class="23">Figure 4. Bottom View (4^th Layer)</p>