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SLVUBO0A – March 2020 – Revised May 2020
Copyright © 2020, Texas Instruments Incorporated
Using the TPS54JA20EVM-023 12-A, Buck Converter Evaluation Module
User's Guide
SLVUBO0A – March 2020 – Revised May 2020
Using the TPS54JA20EVM-023 12-A, Buck Converter
Evaluation Module
This user’s guide contains information for the TPS54JA20EVM-023 evaluation module (EVM) as well as
for the TPS54JA20 DC/DC converter. Also included are the performance specifications, the schematic,
and the list of materials for the TPS54JA20EVM.
Contents
1
Introduction
...................................................................................................................
1.1
Background
..........................................................................................................
1.2
Performance Specification Summary
............................................................................
1.3
Modifications
.........................................................................................................
2
Test Setup and Results
.....................................................................................................
2.1
Input/Output Connections
..........................................................................................
2.2
Start Up Procedure
.................................................................................................
2.3
Efficiency
.............................................................................................................
2.4
Load Regulation
.....................................................................................................
2.5
Load Transients
.....................................................................................................
2.6
Loop Characteristics
..............................................................................................
2.7
Output Voltage Ripple
............................................................................................
2.8
Powering Up
.......................................................................................................
3
Schematic, List of Materials, and Layout
................................................................................
3.1
Schematic
..........................................................................................................
3.2
List of Materials
....................................................................................................
3.3
Layout
...............................................................................................................
List of Figures
1
Safety Warnings
.............................................................................................................
2
TPS54JA20 Efficiency Plot: Vin Range
...................................................................................
3
TPS54JA20 Efficiency Plot: Vcc Range
..................................................................................
4
TPS54JA20 Efficiency Plot: Skip Mode
...................................................................................
5
TPS54JA20 Efficiency Plot: FCCM and Skip Mode
.....................................................................
6
TPS54JA20 Load Regulation
..............................................................................................
7
TPS54JA20 Load Regulation
..............................................................................................
8
TPS54JA20 Load Transient Response
...................................................................................
9
TPS54JA20 Load Transient Response
...................................................................................
10
TPS54JA20 Bode Plot
.....................................................................................................
11
TPS54JA20 Output Ripple, No Load
....................................................................................
12
TPS54JA20 Output Ripple, 12-A Load
..................................................................................
13
TPS54JA20 Output Ripple, Skip Mode, 10mA Load
..................................................................
14
TPS54JA20 Enable Start-Up, 12A Load
................................................................................
15
TPS54JA20 EN Shutdown, 12A Load
...................................................................................
16
TPS54JA20EVM Top-Side Layout
.......................................................................................
17
TPS54JA20EVM Internal Layer-1 Layout
...............................................................................
18
TPS54JA20EVM Internal Layer-2 Layout
...............................................................................