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User's Guide
SLVU116B–December 2004– Revised September 2011
TPS75003EVM User's Guide
Contents
1 Introduction .................................................................................................................. 1
2 Performance Specification Summary ..................................................................................... 2
3 Modifications ................................................................................................................. 2
4 Board Layout ................................................................................................................ 5
5 Schematic .................................................................................................................. 11
6 Bill of Materials ............................................................................................................. 12
List of Figures
1 Efficiency With V
IN
= 5 V, V
OUT1
= 1.2 V, V
OUT2
= 3.3 V ................................................................. 3
2 Normalized Load Regulation With V
IN
= 5 V, V
OUT1
= 1.2 V, V
OUT2
= 3.3 V .......................................... 4
3 Output Ripple when V
IN
= 5 V, V
OUT1
= 1.2 V, I
OUT1
= 2 A............................................................... 4
4 Output Ripple When V
IN
= 5 V, V
OUT2
= 3.3 V, I
OUT2
= 2 A .............................................................. 5
5 Soft Start With V
IN
= 5.0 V ................................................................................................. 5
6 Top Layer .................................................................................................................... 6
7 Bottom Layer ................................................................................................................ 7
8 Top Assembly ............................................................................................................... 8
9 Layer 2 ....................................................................................................................... 9
10 Layer 3...................................................................................................................... 10
11 TPS75003EVM Schematic............................................................................................... 11
List of Tables
1 Typical Performance Specification Summary ........................................................................... 2
2 TPS75003EVM Bill of Materials ......................................................................................... 12
1 Introduction
The Texas Instruments TPS75003EVM evaluation module (EVM) helps designers evaluate the operation
and performance of the TPS75003 multi-channel power IC. This device has two buck controllers and a low
dropout linear regulator. The device will operate at input voltages between 2.2 V and 6.5 V. The buck
controllers can provide output voltages between 1.22 V and the input voltage and output currents up to 3
A. This EVM is specifically designed and optimized to operate from a 5 V input with output currents up to
2 A for V
OUT1
= 1.2 V typical and V
OUT2
= 3.3 V typical. In addition, the EVM is jumper configurable so that
each output can be independently enabled or the outputs can be sequenced in the following order: V
OUT3
,
V
OUT2
then V
OUT1
.
1
SLVU116B– December 2004–Revised September 2011 TPS75003EVM User's Guide
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