Texas Instruments TPS65257, User Manual

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User ' s Guide
SLVU568 – September 2011
TPS65257 High Current, Synchronous Step Down Three
Buck Switcher Evaluation Module with 1USB Switch and
Push Button Controller
This document presents the information required to power the TPS65257 PMIC as well as the support
documentation including schematic and bill of materials.
Contents
1 Background and EVM Limitations
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2
2 Power-up Procedure
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2
3 TPS65258EVM Schematic
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2
4 EVM Layout
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5 Bench Test Setup Conditons
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5.1 Headers Description
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5.2 Test Points and Placement
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List of Figures
1 TPS65258EVM Schematic
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2 Composite Layer
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4
3 Top Layer
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4 Middle Layer (2nd), Solid Cu Ground
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5 Middle (3rd) Layer
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6 Bottom Layer
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List of Tables
1 Input Voltage and Output Current Summary
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2
2 Bill of Materials
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1 SLVU568 – September 2011 TPS65257 High Current, Synchronous Step Down Three Buck Switcher
Evaluation Module with 1USB Switch and Push Button Controller
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