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User's Guide
SLVU298 – March 2009
TPS54040EVM-456 0.5-A, SWIFT™ Regulator Evaluation
Module
This user's guide contains background information for the TPS54040 as well as support documentation for
the TPS54040EVM-456 evaluation module (HPA456). Also included are the performance specifications,
the schematic, and the bill of materials for the TPS54040EVM-456.
Contents
1 Introduction ................................................................................................................... 2
2 Test Setup and Results ..................................................................................................... 3
3 Board Layout ................................................................................................................. 9
4 Schematic and Bill of Materials ........................................................................................... 11
List of Figures
1 TPS54040EVM-456 Efficiency ............................................................................................. 4
2 TPS54040EVM-456 Low Current Efficiency ............................................................................. 5
3 TPS54040EVM-456 Load Regulation ..................................................................................... 5
4 TPS54040EVM-456 Line Regulation ...................................................................................... 6
5 TPS54040EVM-456 Transient Response ............................................................................... 6
6 TPS54040EVM-456 Loop Response ..................................................................................... 7
7 TPS54040EVM-456 Output Ripple ....................................................................................... 7
8 TPS54040EVM-456 Input Ripple ......................................................................................... 8
9 TPS54040EVM-456 Start-Up Relative to V
IN
............................................................................ 8
10 TPS54040EVM–456 Eco–mode™ Operation ............................................................................ 9
11 TPS54040EVM-456 Top-Side Layout ................................................................................... 10
12 TPS54040EVM-456 Bottom-Side Layout ............................................................................... 10
13 TPS54040EVM-456 Top-Side Assembly................................................................................ 11
14 TPS54040EVM-456 Schematic .......................................................................................... 11
List of Tables
1 Input Voltage and Output Current Summary ............................................................................. 2
2 TPS54040EVM-456 Performance Specification Summary ............................................................. 2
3 Output Voltages Available .................................................................................................. 3
4 EVM Connectors and Test Points ......................................................................................... 4
5 TPS54040EVM-456 Bill of Materials ..................................................................................... 12
SWIFT, Eco-mode are trademarks of Texas Instruments.
SLVU298 – March 2009 TPS54040EVM-456 0.5-A, SWIFT™ Regulator Evaluation Module 1
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