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User's Guide
SLVU579–December 2011
TPS54427, 4-A, SWIFT™ Regulator
Evaluation Module
This user's guide contains information about the TPS54427 as well as support documentation for the
TPS54427 evaluation module. Included are the performance specifications, schematic, and the bill of
materials of the TPS54427 evaluation module.
Contents
1 Introduction .................................................................................................................. 2
2 Performance Specification Summary ..................................................................................... 2
3 Modifications ................................................................................................................. 3
3.1 Output Voltage Setpoint ........................................................................................... 3
3.2 Output Filter and Closed-Loop Response ...................................................................... 3
4 Test Setup and Results .................................................................................................... 4
4.1 Input/Output Connections ......................................................................................... 4
4.2 Start-Up Procedure ................................................................................................ 4
4.3 Efficiency ............................................................................................................ 5
4.4 Load Regulation .................................................................................................... 6
4.5 Line Regulation ..................................................................................................... 6
4.6 Load Transient Response ........................................................................................ 7
4.7 Output Voltage Ripple ............................................................................................. 7
4.8 Input Voltage Ripple ............................................................................................... 8
4.9 Start-Up and Shut-Down .......................................................................................... 8
5 Board Layout ................................................................................................................ 9
5.1 Layout ............................................................................................................... 9
6 Schematic, Bill of Materials, and Reference ........................................................................... 12
6.1 Schematic ......................................................................................................... 12
6.2 Bill of Materials .................................................................................................... 12
6.3 Reference .......................................................................................................... 12
List of Figures
1 TPS54427 Efficiency ....................................................................................................... 5
2 TPS54427 Light-Load Efficiency.......................................................................................... 5
3 TPS54427 Load Regulation, V
IN
= 5 V and V
IN
= 12 V................................................................. 6
4 TPS54427 Line Regulation................................................................................................ 6
5 TPS54427 Load Transient Response.................................................................................... 7
6 TPS54427 Output Voltage Ripple ........................................................................................ 7
7 TPS54427 Input Voltage Ripple .......................................................................................... 8
8 TPS54427 Start-Up Relative to V
IN
....................................................................................... 8
9 TPS54427 Shut-down Relative to V
IN
.................................................................................... 8
10 TPS54427 Start-Up Relative to EN....................................................................................... 9
11 TPS54427 Shut-down Relative to EN.................................................................................... 9
12 Top Assembly ............................................................................................................... 9
13 Top Layer................................................................................................................... 10
14 Internal Layer 1............................................................................................................ 10
SWIFT, D-CAP2 are trademarks of Texas Instruments.
1
SLVU579–December 2011 TPS54427, 4-A, SWIFT™ Regulator— Evaluation Module
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Copyright © 2011, Texas Instruments Incorporated
Verzeichnis
- ・ Blockdiagramm on Seite 12
- ・ Anwendungsbereich on Seite 17 Seite 18
