User

's Guide

SLVU549

– December 2011

TPS7A1601EVM-046

This user

’s guide describes operational use of theTPS7A1601EVM-046 evaluation module (EVM) as a

reference design for engineering demonstration and evaluation of the TPS7A1601, low-dropout (LDO)

linear regulator. Included in this user

’s guide are setup instructions, a schematic diagram, layout and

thermal guidelines, a bill of materials, and test results.

Contents

1

Introduction

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

2

Setup

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

2.1

Input/Output Connectors and Jumper Descriptions

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

2.2

Equipment Setup

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

3

Operation

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

4

Test Results

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

4.1

Turnon Sequence

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

4.2

Output Load Transient

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

4.3

Power Good

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

5

Thermal Guidelines and Layout Recommendations

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

6

Board Layout

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

7

Schematic and Bill of Materials

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

7.1

Schematic

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

7.2

Bill of Materials

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

List of Figures

1

Turnon Sequence

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

2

Load Step and Transient Response

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

3

Power Good Operation

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

4

Top-Layer Silkscreen

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

5

Top-Layer Routing

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

6

Bottom-Layer Routing

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

7

TPS7A1601EVM-046 Schematic

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

List of Tables

1

Thermal Resistance,

θ

5

2

TPS7A1601EVM-046 Bill of Materials

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

PowerPAD is a trademark of Texas Instruments.

1

SLVU549

– December 2011

TPS7A1601EVM-046

Submit Documentation Feedback

Copyright

© 2011, Texas Instruments Incorporated