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User's Guide
SLVU777–September 2012
TPS54020EVM-082 Evaluation Module (PWR082)
This user's guide contains background information for the TPS54020 as well as support documentation for
the TPS54020EVM-082 evaluation module (EVM). Also included are the performance specifications, the
schematic, and the bill of materials.
Contents
1 Introduction .................................................................................................................. 2
2 Test Setup and Results .................................................................................................... 4
3 Board Layout ................................................................................................................ 9
4 Schematic and Bill of Materials .......................................................................................... 15
List of Figures
1 EVM Efficiency at 25°C .................................................................................................... 5
2 TPS54020EVM-082 Load Regulation.................................................................................... 5
3 TPS54020EVM-082 Line Regulation..................................................................................... 6
4 TPS54020EVM-082 Transient Response ............................................................................... 6
5 TPS54020EVM-082 Loop Bode Response.............................................................................. 7
6 TPS54020EVM-082 Output Ripple ....................................................................................... 7
7 TPS54020EVM-082 Input Ripple ......................................................................................... 7
8 TPS54020EVM-082 Start Up with V
IN
.................................................................................... 8
9 TPS54020EVM-082 Start Up with EN.................................................................................... 8
10 TPS54020EVM-082 Pre-Bias Startup.................................................................................... 9
11 TPS54020EVM-082 Hiccup Mode Current Limit........................................................................ 9
12 TPS54020EVM-082 Top Side Copper.................................................................................. 10
13 TPS54020EVM-082 Internal 1 Copper ................................................................................. 11
14 TPS54020EVM-082 Internal 2 Copper ................................................................................. 12
15 TPS54020EVM-082 Bottom Side Copper.............................................................................. 13
16 TPS54020EVM-082 Top Side Component Placement............................................................... 14
17 TPS54020EVM-082 Bottom Side Component Placement........................................................... 15
18 TPS54020EVM-082 Schematic.......................................................................................... 16
List of Tables
1 Input Voltage and Output Current Summary ............................................................................ 2
2 Performance Specifications................................................................................................ 2
3 Output Voltage Examples with R10 of 2.55 kΩ ......................................................................... 3
4 EVM Connectors and Test Points ........................................................................................ 4
5 TPS54020EVM-082 Bill of Materials.................................................................................... 17
1
SLVU777–September 2012 TPS54020EVM-082 Evaluation Module (PWR082)
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