Name: EVB_RT6160AWSC
Brand: Richtek

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RT6160A 是一款高效率、单电感、先进恒定导通时间（ACOT®）单芯片同步升降压转换器，可在 2.2V 至 5.5V 输入范围内提供最高 3A 输出电流，并可稳定调节至 2.025V 至 5.2V 的数字可编程输出电压。无论输入电压低于、高于或等于输出电压，均适用于宽输入电源范围的应用。本文档说明 RT6160A 开发板（EVB）的功能与使用方式，并提供开发板相关设置信息。

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1. General Description

The RT6160A is a high-efficiency, single inductor, Advanced Constant On-Time (ACOT®) monolithicsynchronous Buck-Boost converter that can deliver up to 3A output current from 2.2V to 5.5V and well regulate to the digitally programmable output voltage from 2.025V to 5.2V, which is suitable for wide input supply range applications, regardless of input voltage is lower, higher than or even equal to the output voltage. This document explains the function and use of the RT6160A evaluation board (EVB), and provides information to related setting of the evaluation board.

2. Performance Specification Summary

Summary of the RT6160A Evaluation Board performance specificiaiton is provided in Table 1. The ambient temperature is 25°C. Table 1. RT6160A Evaluation Board Performance Specification Summary <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"> Specification </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Test Conditions </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Min </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Typ </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Max </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Unit </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"> Input Voltage Range </td> <td style="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 style="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"> 2.2 </td> <td style="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 style="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"> 5.5 </td> <td style="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"> V </td> </tr> <tr style="height:17.0pt"> <td rowspan="2" style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Output Current </td> <td style="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"> VIN ≥ 2.5V, VOUT = 3.3V </td> <td style="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"> 0 </td> <td style="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 style="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"> 2.5 </td> <td rowspan="2" style="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"> A </td> </tr> <tr style="height:17.0pt"> <td style="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"> VIN ≥ 3V, VOUT = 3.3V </td> <td style="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"> 0 </td> <td style="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 style="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"> 3 </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"> Output Voltage Range </td> <td style="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 style="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"> 2.025 </td> <td style="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 style="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"> 5.5 </td> <td style="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"> V </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"> Switching Frequency </td> <td style="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 style="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 style="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"> 2.2 </td> <td style="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 style="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"> MHz </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"> IQ_SW </td> <td style="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"> VEN = VIN = 3.6V, IOUT = 0A </td> <td style="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 style="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"> 2 </td> <td style="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"> 4 </td> <td rowspan="2" style="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"> µA </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"> IQ_NON-SW </td> <td style="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"> VEN = VIN = 3.6V, IOUT = 0A, not switching </td> <td style="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 style="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"> 1 </td> <td style="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"> 2 </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"> ISHDN </td> <td style="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"> VEN = 0V, VIN = 3.6V </td> <td style="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 style="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"> 0.1 </td> <td style="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"> 1 </td> <td style="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"> µA </td> </tr> </table> </div>

3. Power-up Procedure

<h3>Suggestion Required Equipments</h3> <ul> <li>RT6160A Evaluation Board </li> <li>DC power supply capable of at least 5.5V and 7A</li> <li>Electronic load capable of 10A</li> <li>Function Generator</li> <li>Oscilloscope</li> </ul>

4. Quick Start Procedures

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.

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

1) Output selection. The RT6160A has external VSEL pin to select VOUT1 or VOUT2. Pulling VSEL to high is for VOUT2 and pulling VSEL to low is for VOUT1. 2) VOUT selection. The RT6160A has programmable VOUTX [6:0] register, output voltage from 2.025V to 5.2V with 25mV resolution. VOUT1 Address = 0x04 and VOUT2 Address = 0x05. 3) With power off, connect the input power supply to VIN and GND pins. 4) With power off, connect the electronic load between the VOUT and nearest GND pins. 5) Turn on the power supply at the input. Make sure that the input voltage does not exceeds 5.5V on the Evaluation Board. 6) Pull the RT6160A En pin to high to enable device, that is, switching being enabled and soft-start sequence being initiated. It is recommend that the VIN voltage is higher than VUVLO first, then the EN voltage rises above the logic-high threshold voltage (VENH) the device will be turned on. 7) To verify the output voltage VOUT. If VSEL = H, default output voltage of the RT6160A measurement is 3.45V; If VSEL = L, default output voltage of the RT6160A measurement is 3.3V. Check for the proper output voltage using a voltmeter. 8) 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.

6. Detailed Description of Hardware

<h3>Headers Description and Placement</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image001_en.jpg"><img width="491" height="350" id="圖片 18" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image001_en.jpg" alt="一張含有電子產品, 電路, 電子工程, 電子元件的圖片自動產生的描述" /></a> 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>.

7. Test Points

The EVB is provided with the test points and pin names listed in the table below. <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;margin-left:1.85pt;border-collapse:collapse; border:none"> <thead> <tr style="height:1.0cm"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> Test Point/ Pin Name </td> <td width="85%" style="width:85.36%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> Function </td> </tr> </thead> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VIN </td> <td width="85%" style="width:85.36%;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"> Input voltage. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VOUT </td> <td width="85%" style="width:85.36%;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"> Output voltage. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> GND </td> <td width="85%" style="width:85.36%;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"> Ground. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> En </td> <td width="85%" style="width:85.36%;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"> Enable test point. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> LX1 </td> <td width="85%" style="width:85.36%;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"> Switching node1 of LX. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> LX2 </td> <td width="85%" style="width:85.36%;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"> Switching node2 of LX. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VSEL </td> <td width="85%" style="width:85.36%;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"> Output voltage selection pin. </td> </tr> </table>

8. Bill of Materials

<div> <table class="TableNormal" border="1" cellspacing="0" cellpadding="0" width="680" style="border-collapse:collapse;border:none"> <thead> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Reference </td> <td width="38" style="width:28.7pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Count </td> <td width="161" style="width:120.4pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Part Number </td> <td width="95" style="width:71.4pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Value </td> <td width="119" style="width:89.55pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Description </td> <td width="104" style="width:77.7pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Package </td> <td width="93" style="width:69.5pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Manufacturer </td> </tr> </thead> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> U1 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> 1 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> RT6160AWSC </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> RT6160AWSC </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Buck-Boost Converter </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> WL-CSP-15B 1.4x2.3 (BSC) </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> RICHTEK </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> C1, C2 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 2 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> GRM31CR71A226KE15 </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 22µF </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 22µF/16V/X5R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 1206 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> MURATA </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> C4 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 1 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> GRM033R60J104KE19D </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 100nF </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 100nF/6.3V/X5R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0201 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> MURATA </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> C6 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 1 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> GRM155R60J106ME15 </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 10µF </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 10µF/6.3V/X5R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0402 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> MURATA </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> C8, C9 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 2 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> GRM188R61A226ME15D </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 22µF </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 22µF/10V/X5R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> MURATA </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> R1, R2 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 2 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> WR06X000 PTL </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 0Ω </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0Ω </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> WASIN </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> L3 </td> <td width="38" style="width:28.7pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 1 </td> <td width="161" style="width:120.4pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> XFL4015-471MEC </td> <td width="95" style="width:71.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> 0.47µH </td> <td width="119" style="width:89.55pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0.47µH </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> L-4X4 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> Coilcraft </td> </tr> </table> </div>

9. Typical Applications

<h3>EVB Schematic Diagram</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image002_en.png"><img border="0" width="684" height="417" id="Picture 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image002_en.png" alt="Technical Document Image Preview" /></a> 1. The capacitance values of the input and output capacitors will influence the input and output voltage ripple. 2. MLCC capacitors have degrading capacitance at DC bias voltage, and especially smaller size MLCC capacitors will have much lower capacitance.

10. Measure Result

<table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" style="margin-left:26.35pt;border-collapse:collapse;border:none"> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Quiescent Current vs. Input Voltage </td> <td width="307" style="width:230.35pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Efficiency vs. Output Current </td> </tr> <tr style="height:168.2pt"> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image003_en.png"><img border="0" width="292" height="223" id="圖片 1" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image003_en.png" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image004_en.png"><img border="0" width="293" height="224" id="圖片 14" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image004_en.png" alt="Technical Document Image Preview" /></a> </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> PFM Switching Waveforms (Buck Operation) </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> PFM Switching Waveforms (Buck-Boost Operation) </td> </tr> <tr style="height:172.95pt"> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:172.95pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image005_en.jpg"><img border="0" width="292" height="203" id="圖片 28" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image005_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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:172.95pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image006_en.jpg"><img border="0" width="293" height="206" id="圖片 23" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image006_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> PFM Switching Waveforms (Boost Operation) </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> PWM Switching Waveforms (Buck Operation) </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image007_en.jpg"><img border="0" width="302" height="212" id="圖片 20" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image007_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image008_en.jpg"><img border="0" width="303" height="214" id="圖片 21" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image008_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> </table> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" style="margin-left:26.35pt;border-collapse:collapse;border:none"> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt"> PWM Switching Waveforms (Buck-Boost Operation) </td> <td width="307" style="width:230.35pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> PWM Switching Waveforms (Boost Operation) </td> </tr> <tr style="height:184.2pt"> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 1.4pt 0cm 1.4pt;height:184.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image009_en.jpg"><img border="0" width="303" height="211" id="圖片 17" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image009_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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:184.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image010_en.jpg"><img border="0" width="303" height="214" id="圖片 19" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image010_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Line Transient Response (Light Load) </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Line Transient Response (Heavy Load) </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image011_en.jpg"><img border="0" width="292" height="209" id="圖片 16" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image011_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image012_en.jpg"><img border="0" width="293" height="207" id="圖片 15" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image012_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Load Transient Response (Buck) </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Load Transient Response (Buck-Boost) </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image013_en.jpg"><img border="0" width="292" height="204" id="圖片 13" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image013_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image014_en.jpg"><img border="0" width="293" height="205" id="圖片 12" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image014_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> </table> <table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" style="margin-left:26.35pt;border-collapse:collapse;border:none"> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Load Transient Response (Boost) </td> <td width="307" style="width:230.35pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Start-Up Waveforms (Light Load) </td> </tr> <tr style="height:168.2pt"> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image015_en.jpg"><img border="0" width="292" height="204" id="圖片 11" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image015_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image016_en.jpg"><img border="0" width="292" height="219" id="圖片 8" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image016_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Start-Up Waveforms (Heavy Load) </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt"> Maximum Output Current vs. Input Voltage </td> </tr> <tr style="height:172.95pt"> <td width="306" style="width:229.8pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:172.95pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image017_en.jpg"><img border="0" width="292" height="217" id="圖片 10" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image017_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;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:172.95pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image018_en.png"><img border="0" width="293" height="238" id="圖片 46" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image018_en.png" alt="Technical Document Image Preview" /></a> </td> </tr> </table> Note: When measuring the input or 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 directly across the output capacitor.

11. Evaluation Board Layout

Figure 1 to Figure 4 are RT6160AWSC Evaluation Board layout. This board size is 70mm x 50mm and is constructed on four-layer PCB. <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image019_en.png"><img border="0" width="491" height="350" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image019_en.png" alt="Technical Document Image Preview" /></a> Figure 1. Top View (1st layer) <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image020_en.png"><img border="0" width="491" height="351" id="圖片 4" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image020_en.png" alt="Technical Document Image Preview" /></a> Figure 2. PCB Layout—Inner Side (2nd Layer) <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image021_en.png"><img border="0" width="491" height="353" id="圖片 5" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image021_en.png" alt="Technical Document Image Preview" /></a> Figure 3. PCB Layout—Inner Side (3rd Layer) <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image022_en.png"><img border="0" width="491" height="352" id="圖片 6" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt6160awsc/html-images/image022_en.png" alt="Technical Document Image Preview" /></a> Figure 4. Bottom View (4th Layer)

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