Texas Instruments TPS544 20 Series, Руководство пользователя

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User’s Guide
TPS544x20 Step-Down Converter Evaluation Module
User's Guide
ABSTRACT
The PWR-634EVM evaluation module uses either the TPS544C20 or TPS544B20 devices. The TPS544C20
and TPS544B20 are highly integrated synchronous buck converters that are designed for up to 30-A or 20-A
current output, respectively.
Table of Contents
1 Description .............................................................................................................................................................................. 2
1.1 Typical Applications............................................................................................................................................................ 2
1.2 Features............................................................................................................................................................................. 2
2 Electrical Performance Specifications ................................................................................................................................. 3
3 Schematic ................................................................................................................................................................................ 4
4 Test Setup ................................................................................................................................................................................ 5
4.1 Test and Configuration Software........................................................................................................................................ 5
4.2 Test Equipment.................................................................................................................................................................. 6
4.3 The PWR-634EVM............................................................................................................................................................. 7
4.4 Test Set up and USB Interface Adapter............................................................................................................................. 8
4.5 List of Test Points............................................................................................................................................................... 9
5 EVM Configuration Using the Fusion GUI .......................................................................................................................... 10
5.1 Configuration Procedure.................................................................................................................................................. 10
6 Test Procedure ...................................................................................................................................................................... 11
6.1 Line/Load Regulation and Efficiency Measurement Procedure........................................................................................ 11
6.2 Efficiency.......................................................................................................................................................................... 11
6.3 Equipment Shutdown....................................................................................................................................................... 11
7 Performance Data and Typical Characteristic Curves ...................................................................................................... 12
7.1 Efficiency.......................................................................................................................................................................... 12
7.2 Load Regulation............................................................................................................................................................... 12
7.3 Transient Response......................................................................................................................................................... 13
7.4 Output Ripple................................................................................................................................................................... 14
8 Screen Shots ......................................................................................................................................................................... 17
8.1 Fusion GUI Screen Shots................................................................................................................................................ 17
9 EVM Assembly Drawing and PCB Layout .......................................................................................................................... 31
10 List of Materials .................................................................................................................................................................. 35
11 Revision History .................................................................................................................................................................. 37
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SLUUAY7B – MAY 2014 – REVISED AUGUST 2021
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TPS544x20 Step-Down Converter Evaluation Module User's Guide 1
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