Texas Instruments Evaluation Module for TPS54425 4.5V to 18V Input, 4A Synchronous Step-Down SWIFT Converter TPS54425EVM TPS54425EVM-608 数据表

This user's guide contains information for the TPS54425 as well as support documentation for the
TPS54425EVM-608 evaluation module. Included are the performance specifications, schematic, and the
bill of materials of the TPS54425EVM-608.

1

Introduction

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2

Performance Specification Summary

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3

Modifications

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3.1

Output Voltage Setpoint

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4

Test Setup and Results

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4.1

Input/Output Connections

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4.2

Start-Up Procedure

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4.3

Efficiency

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4.4

Load Regulation

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4.5

Line Regulation

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4.6

Load Transient Response

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4.7

Output Voltage Ripple

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4.8

Input Voltage Ripple

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4.9

Start-Up

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5

Board Layout

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5.1

Layout

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6

Schematic, Bill of Materials, and Reference

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6.1

Schematic

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6.2

Bill of Materials

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6.3

Reference

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1

TPS54425EVM-608 Efficiency

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2

TPS54425EVM-608 Light Load Efficiency

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3

TPS54425EVM-608 Load Regulation

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4

TPS54425EVM-608 Line Regulation

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5

TPS54425EVM-608 Load Transient Response

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6

TPS54425EVM-608 Output Voltage Ripple

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7

TPS54425EVM-608 Input Voltage Ripple

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8

TPS54425EVM-608 Start-Up Relative to V

IN

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9

TPS54425EVM-608 Start-Up Relative to EN

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10

Top Assembly

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11

Top Layer

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12

Internal Layer 1

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13

Internal Layer 2

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14

Bottom Layer

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SWIFT, D-CAP2 are trademarks of Texas Instruments.

1

SLVU382 – August 2010

Copyright © 2010, Texas Instruments Incorporated