TPS62090EVM-063 Datasheet, PDF (1/15 Pages) Texas Instruments – TPS62090EVM-063 Evaluation Module

User's Guide
SLVU670A – March 2012 – Revised May 2012
TPS62090EVM-063 Evaluation Module
This user’s guide describes the TPS62090 evaluation module (EVM) and how to perform a stand-alone
evaluation or interface with a host or system. The TPS62090 is a step-down converter that operates with
an input voltage between 2.5 V and 6 Vdc, an output voltage of 1.8 V using external resistors, and can
deliver up to 3000 mA of continuous current. The converter has a programmable soft-start, a power-out
good status, and several other safety features. See the data sheet for the complete description.
Contents
1 Introduction .................................................................................................................. 2
2 Considerations When Evaluating the TPS62090 ....................................................................... 2
3 Test Summary ............................................................................................................... 2
3.1 Equipment ........................................................................................................... 2
3.2 Equipment and EVM Setup ....................................................................................... 2
3.3 Test Procedure ..................................................................................................... 3
4 Waveforms ................................................................................................................... 4
5 Schematic, Printed-Circuit Board, and Bill of Materials ................................................................ 8
5.1 Schematic ........................................................................................................... 8
5.2 Printed-Circuit Board Layouts .................................................................................... 9
5.3 Bill of Materials .................................................................................................... 10
List of Figures
1 EVM Schematic and Evaluation Setup................................................................................... 3
2 Typical Switching Waveforms ............................................................................................. 4
3 Typical Switching Waveforms ............................................................................................. 5
4 Low-Power Mode, 25-Ω Load – Shows Burst Low-Power Mode .................................................... 5
5 Power Up by Powering Laboratory Supply Connected to Vin ........................................................ 6
6 Power Up by Hot Plugging Vin ............................................................................................ 6
7 Power Up by Enable Pin Pulled High .................................................................................... 7
8 Power Down by Enable Pulled Low ...................................................................................... 7
9 Assembly Layer ............................................................................................................. 9
10 Top Layer ................................................................................................................... 9
11 Bottom Layer .............................................................................................................. 10
List of Tables
1 Setup I/O Connections and Configuration for TPS62090EVM Evaluation .......................................... 2
2 PWR063A Bill of Materials .............................................................................................. 10
SLVU670A – March 2012 – Revised May 2012
TPS62090EVM-063 Evaluation Module
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