User's Guide

SLVU392 – July 2010

TPS53125EVM-599

The TPS53125EVM-599 Evaluation Module presents an easy-to-use reference design for a common dual output power supply using the TPS53125 controller in cost-sensitive applications. Also included are the schematic, board layout, and bill of materials.

 

 

Contents

 

1

Description

2

 

1.1

Applications

2

 

1.2

Features

2

2

TPS53125EVM-599 Electrical Performance Specifications

2

3

TPS53125EVM-599 Schematic

3

4

Connector and Test Point Descriptions

4

 

4.1

Enable Jumpers/Switches –SW1 and SW2

4

 

4.2

Test Point Descriptions

4

5

Test Setup

5

 

5.1

Equipment

5

 

5.2

Equipment Setup

6

 

5.3

Start-Up/Shutdown Procedures

7

 

5.4

Output Ripple Voltage Measurement Procedure

8

 

5.5

Equipment Shutdown

8

6

TPS53125EVM-599 Test Data

8

 

6.1

Efficiency

8

 

6.2

Line and Load Regulation

9

 

6.3

Output Voltage Ripple and Switching Node Waveforms

10

 

6.4

Switch Node

11

7

TPS53125EVM-599 Assembly Drawings and Layout

12

8

TPS53125EVM-599 Bill of Materials

15

 

 

List of Figures

 

1

TPS53125EVM-599 Schematic

3

2

TPS53125EVM-599 Recommended Test Setup

7

3

TPS53125EVM-599 Efficiency vs Load Current

8

4

TPS53125EVM-599 Efficiency vs Load Current

9

5

TPS53125EVM-599 Output Voltage vs Load Current

9

6

TPS53125EVM-599 Output Voltage vs Load Current

10

7

TPS53125EVM-599 Output Voltage Ripple and Switching Waveform

10

8

TPS53125EVM-599 Output Voltage Ripple

11

9

TPS53125EVM-599 Switching Waveforms

11

10

TPS53125EVM-599 Switching Waveforms

12

11

TPS53125EVM-599 Component Placement, Viewed From Top

12

12

TPS53125EVM-599

Top Copper, Viewed From Top

13

13

TPS53125EVM-599

Bottom Copper, Viewed From Bottom

13

14

TPS53125EVM-599

Internal 1, X-Ray View From Top

14

15

TPS53125EVM-599

Internal 2, X-Ray View From Top

14

D-CAP2 is a trademark of Texas Instruments.

SLVU392 –July 2010

TPS53125EVM-599

1

Copyright ©

2010, Texas Instruments Incorporated

 

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Texas Instruments TPS53125EVM-599 specifications