Texas Instruments TPS543C20EVM-054, User Manual

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1 SLUUBW8 – July 2018
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TPS543C20EVM-054 40-A Single Phase Synchronous Step-Down Converter
User's Guide
SLUUBW8 – July 2018
TPS543C20EVM-054 40-A Single Phase Synchronous
Step-Down Converter
This user's guide describes the characteristics, operation, and use of the TPS543C20EVM-054 evaluation
module (EVM). The user's guide includes test information, descriptions, and results. A complete schematic
diagram, printed-circuit board layouts, and bill of materials are also included in this document. Throughout
this user's guide, the abbreviations EVM, TPS543C20EVM-054, and the term evaluation module are
synonymous with the TPS543C20EVM-054, unless otherwise noted.
Contents
1 Introduction
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3
1.1 Before You Begin
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2 Description
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2.1 Typical End-User Applications
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2.2 EVM Features
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3 EVM Electrical Performance Specifications
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4 Schematic
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5 Test Equipment
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6 BSR054EVM
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7 List of Test Points, Jumpers, and Switch
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8 Test Procedure
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8.1 Line and Load Regulation Measurement Procedure
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8.2 Efficiency
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8.3 Equipment Shutdown
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9 Performance Data and Typical Characteristic Curves
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9.1 Efficiency
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9.2 Power Loss
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9.3 Load Regulation
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9.4 Transient Response
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9.5 Output Ripple
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9.6 Control On
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9.7 Control On and Off
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9.8 Thermal Image
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10 EVM Assembly Drawing and PCB Layout
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11 List of Materials
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List of Figures
1 BSR054EVM Schematic
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2 BSR054EVM Overview
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3 Tip and Barrel Measurement
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4 Efficiency of 0.9-V Output vs Load
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5 Power Loss of 0.9-V Output vs Load
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6 Load Regulation of 0.9-V Output
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7 Transient Response of 0.9-V Output at 12-V
IN
, Transient is 15 A to 25 A to 15 A, the Step is 10 A at 40
A/µs
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8 Output Ripple and SW Node of 0.9-V Output at 12-V
IN
, 40-A Output
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9 Output Ripple and SW Node of 0.9-V Output at 12-V
IN
, 0-A Output
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12