Datasheet
User's Guide
SLVU747–June 2012
TPS54678EVM-155 6-A, SWIFT™ Regulator Evaluation
Module
Contents
1 Introduction .................................................................................................................. 2
2 Test Setup and Results .................................................................................................... 4
3 Board Layout ............................................................................................................... 14
4 Schematic and Bill of Materials .......................................................................................... 19
List of Figures
1 Test Connections ........................................................................................................... 5
2 TPS54678EVM-155 Efficiency ............................................................................................ 6
3 TPS54678EVM-155 Load Regulation .................................................................................... 7
4 TPS54678EVM-155 Line Regulation..................................................................................... 7
5 TPS54678EVM-155 Transient Response ............................................................................... 8
6 TPS54678EVM-155 Loop Response .................................................................................... 8
7 TPS54678EVM-155 Output Ripple at V
IN
= 3.0 V and 6 A ........................................................... 9
8 TPS54678EVM-155 Output Ripple at V
IN
= 6.0 V and 6 A ............................................................ 9
9 TPS54678EVM-155 Input Ripple at 3 V
IN
and 6 A ..................................................................... 9
10 TPS54678EVM-155 Input Ripple at 6 V
IN
and 6 A .................................................................... 10
11 TPS54678EVM-155 Start-Up Relative to V
IN
.......................................................................... 11
12 TPS54678EVM-155 Start-up Relative to Enable ..................................................................... 11
13 TPS54678EVM-155 Start-up into Pre-bias............................................................................. 11
14 TPS54678EVM-155 Shut-down Relative to V
IN
........................................................................ 12
15 TPS54678EVM-155 Shut-down Relative to EN ....................................................................... 12
16 TPS54678EVM-155 Hiccup Mode Current Limit Shut-down ........................................................ 13
17 TPS54678EVM-155 Hiccup Mode Current Limit Restart into Short Circuit........................................ 13
18 TPS54678EVM-155 Top-Side Assembly............................................................................... 14
19 TPS54678EVM-155 Top-Side Layout .................................................................................. 15
20 TPS54678EVM-155 Layout 2............................................................................................ 16
21 TPS54678EVM-155 Layout 3............................................................................................ 17
22 TPS54678EVM-155 Bottom-Side Layout .............................................................................. 18
23 TPS54678EVM-155 Schematic.......................................................................................... 19
List of Tables
1 Input Voltage and Output Current Summary ............................................................................ 2
2 TPS54678EVM-155 Performance Specification Summary............................................................ 2
3 Output Voltages Available ................................................................................................. 3
4 EVM Connectors and Test Points ........................................................................................ 5
5 TPS54678EVM-155 Bill of Materials.................................................................................... 20
SWIFT is a trademark of Texas Instruments.
1
SLVU747–June 2012 TPS54678EVM-155 6-A, SWIFT™ Regulator Evaluation Module
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