Datasheet
1 Introduction
2 Setup
User's Guide
SLVU294 – February 2009
TPS782xxEVM
This user’s guide describes the characteristics, operation, and use of the TPS782xxEVM-445 where ‘xx’ is
the output voltage. This EVM demonstrates the Texas Instruments TPS782xx, a low dropout linear
regulator in a TSOT23-5 package that is capable of 150 mA of output current. This user’s guide includes
setup instructions, a schematic diagram, thermal guidelines, a bill of materials, and printed-circuit board
layout drawings for the evaluation module.
Contents
1 Introduction ................................................................................................................... 1
2 Setup .......................................................................................................................... 1
2.1 Input / Output Connector Descriptions ........................................................................... 2
3 Operation ..................................................................................................................... 2
3.1 Operating the TPS782xxEVM ..................................................................................... 2
4 Thermal Guidelines .......................................................................................................... 2
4.1 Thermal Considerations ............................................................................................ 2
5 Board Layout ................................................................................................................. 4
6 Schematic and Bill of Materials ............................................................................................ 8
6.1 Schematic ............................................................................................................ 8
6.2 Bill of Materials ...................................................................................................... 9
6.3 Related Documentation From Texas instruments .............................................................. 9
List of Figures
1 Top Layer Assembly ......................................................................................................... 4
2 Top Layer Routing ........................................................................................................... 5
3 Bottom Layer Routing ....................................................................................................... 6
4 Bottom Layer Assembly ..................................................................................................... 7
5 TPS782xxEVM-445 Schematic ............................................................................................ 8
List of Tables
1 Calculated Maximum Ambient Temperature ............................................................................. 3
2 TPS782xxEVM-445 Bill of Materials ...................................................................................... 9
The TPS782xxEVM-445 evaluation module (EVM) helps designers evaluate the operation and
performance of the TPS78225, TPS78227, TPS78230, and the TPS78233 low dropout linear regulators in
the TSOT23-5 package. The TPS782xx is a 150-mA, ultralow, quiescent-current linear regulator.
This section describes the jumpers and connectors on the EVM as well as how to properly connect, set
up, and use the TPS782xxEVM.
SLVU294 – February 2009 TPS782xxEVM 1
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