User's Guide
SLVU549–December 2011
TPS7A1601EVM-046
This user’s guide describes operational use of theTPS7A1601EVM-046 evaluation module (EVM) as a
reference design for engineering demonstration and evaluation of the TPS7A1601, low-dropout (LDO)
linear regulator. Included in this user’s guide are setup instructions, a schematic diagram, layout and
thermal guidelines, a bill of materials, and test results.
Contents
1
2
Introduction .................................................................................................................. 2
Setup ......................................................................................................................... 2
2.1
2.2
Input/Output Connectors and Jumper Descriptions ........................................................... 2
Equipment Setup ................................................................................................... 2
3
4
Operation ..................................................................................................................... 3
Test Results ................................................................................................................. 3
4.1
4.2
4.3
Turnon Sequence .................................................................................................. 3
Output Load Transient ............................................................................................. 3
Power Good ........................................................................................................ 4
5
6
7
Thermal Guidelines and Layout Recommendations ................................................................... 4
Board Layout ................................................................................................................ 5
Schematic and Bill of Materials ........................................................................................... 7
7.1
7.2
Schematic ........................................................................................................... 7
Bill of Materials ..................................................................................................... 7
List of Figures
1
2
3
4
5
6
7
Turnon Sequence ...........................................................................................................
Load Step and Transient Response......................................................................................
Power Good Operation.....................................................................................................
Top-Layer Silkscreen.......................................................................................................
Top-Layer Routing ..........................................................................................................
Bottom-Layer Routing ......................................................................................................
TPS7A1601EVM-046 Schematic .........................................................................................
3
4
4
5
6
6
7
List of Tables
1
2
Thermal Resistance, θJA, and Maximum Power Dissipation...........................................................
TPS7A1601EVM-046 Bill of Materials ...................................................................................
5
7
PowerPAD is a trademark of Texas Instruments.
1
SLVU549–December 2011
TPS7A1601EVM-046
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