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User's Guide
SLVU394–October 2010
TPS65023B/TPS650231EVM
The characteristics, operation, and use of the TPS65023B/TPS650231EVM-664 evaluation module (EVM)
are described in this document. This EVM is designed to help the user evaluate and test the various
operating modes of the TPS65023B/TPS650231. This user’s guide includes setup instructions for the
hardware and software, a schematic diagram, a bill of materials, and PCB layout drawings for the
evaluation module.
Contents
1 Introduction .................................................................................................................. 1
2 Electrical Performance Specification ..................................................................................... 2
3 Input/Output Connector Description ...................................................................................... 3
4 Board Layout ................................................................................................................ 6
5 Schematic and Bill of Materials .......................................................................................... 11
List of Figures
1 Assembly Layer ............................................................................................................. 6
2 Top Layer Routing .......................................................................................................... 7
3 Layer-2 Routing, GND Plane .............................................................................................. 8
4 Layer-3 Routing, Vin Plane ................................................................................................ 9
5 Bottom Layer Routing..................................................................................................... 10
6 TPS65023B/TPS650231EVM-664 Schematic......................................................................... 11
List of Tables
1 EVM Ordering Options ..................................................................................................... 2
2 Default LDO Output Voltages TPS65023B .............................................................................. 2
3 Default LDO Output Voltages TPS650231 .............................................................................. 2
4 TPS65023B/TPS650231EVM-664 Bill of Materials ................................................................... 12
1 Introduction
The Texas Instruments TPS65023B/TPS650231EVM is an integrated power management integrated
circuit (IC) for applications that are powered with one Li-ion or Li-polymer cell and require multiple power
rails. The TPS65023B/TPS650231 contains three highly efficient switching step-down converters, two
LDOs, and additional status and I/O pins. The device is controlled via an I
2
C interface (HPA172).
1.1 Requirements
In order for this EVM to operate properly, the following components must be connected and properly
configured.
1.1.1 Personal Computer
A personal computer with a USB port is required to operate this EVM. The TPS65023B/TPS650231
interface software, which is run on the personal computer (PC), communicates with the EVM via the PC
USB port. The user sends commands to the EVM as well as reads the contents of the
TPS65023B/TPS650231 internal registers through the USB port.
1
SLVU394–October 2010 TPS65023B/TPS650231EVM
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