User's Guide

SLVU413 – November 2010

TPS54327EVM-686 3-A, SWIFT™ Regulator Evaluation

Module

This user's guide contains information for the TPS54327 as well as support documentation for the

TPS54327EVM-686 evaluation module. Included are the performance specifications, schematic, and the

bill of materials of the TPS54327EVM-686.

Contents

1

Introduction

.................................................................................................................. 2

2

Performance Specification Summary

..................................................................................... 2

3

Modifications

................................................................................................................. 3

3.1

Output Voltage Setpoint

........................................................................................... 3

3.2

Output Filter and Closed Loop Response

...................................................................... 3

4

Test Setup and Results

.................................................................................................... 3

4.1

Input/Output Connections

......................................................................................... 4

4.2

Start-Up Procedure

................................................................................................ 4

4.3

Efficiency

............................................................................................................ 5

4.4

Load Regulation

.................................................................................................... 6

4.5

Line Regulation

..................................................................................................... 7

4.6

Load Transient Response

........................................................................................ 7

4.7

Output Voltage Ripple

............................................................................................. 8

4.8

Input Voltage Ripple

............................................................................................... 8

4.9

Start-Up

............................................................................................................. 9

5

Board Layout

............................................................................................................... 10

5.1

Layout

.............................................................................................................. 10

6

Schematic, Bill of Materials, and Reference

........................................................................... 13

6.1

Schematic

......................................................................................................... 13

6.2

Bill of Materials

.................................................................................................... 13

6.3

Reference

.......................................................................................................... 14

List of Figures

1

TPS54327EVM-686 Efficiency

............................................................................................ 5

2

TPS54327EVM-686 Light Load Efficiency

............................................................................... 5

3

TPS54327EVM-686 Load Regulation, V

6

4

TPS54327EVM-686 Load Regulation, V

6

5

TPS54327EVM-686 Line Regulation

..................................................................................... 7

6

TPS54327EVM-686 Load Transient Response

......................................................................... 7

7

TPS54327EVM-686 Output Voltage Ripple

............................................................................. 8

8

TPS54327EVM-686 Input Voltage Ripple

............................................................................... 8

9

TPS54327EVM-686 Start-Up Relative to V

9

10

TPS54327EVM-686 Start-Up Relative to EN

........................................................................... 9

11

Top Assembly

.............................................................................................................. 10

12

Top Layer

................................................................................................................... 11

13

Bottom Layer

............................................................................................................... 11

14

Bottom Assembly

.......................................................................................................... 12

SWIFT, D-CAP2 are trademarks of Texas Instruments.

1

SLVU413 – November 2010

TPS54327EVM-686 3-A, SWIFT™ Regulator Evaluation Module

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