User's Guide
SLPU003A–February 2014–Revised February 2014
High Power Density, Low Profile NexFET™ Power Block II
for Notebook Power Supply
The evaluation module (EVM) CSD87381PEVM-603 uses the CSD87381P together with TI controller
TPS51219 providing 1.35-V output at up to 15 A from input voltage ranging 8 to 20 V.
Contents
1 Description ................................................................................................................... 2
1.1 Typical Applications ................................................................................................ 2
1.2 Features ............................................................................................................. 2
2 Electrical Performance Specifications .................................................................................... 2
3 Schematic .................................................................................................................... 3
4 Test Setup ................................................................................................................... 4
4.1 Test Equipment ..................................................................................................... 4
4.2 Recommended Test Setup ....................................................................................... 5
5 Test Procedure .............................................................................................................. 6
5.1 Line and Load Regulation and Efficiency Measurement Procedure ........................................ 6
5.2 List of Testpoints ................................................................................................... 6
5.3 Equipment Shutdown .............................................................................................. 6
6 Performance Data and Typical Characteristic Curves ................................................................. 7
7 EVM Assembly Drawing and PCB Layout ............................................................................... 8
8 Bill of Materials ............................................................................................................. 12
List of Figures
1 CSD87381PEVM-603 Schematic ........................................................................................ 3
2 Tip and Barrel Measurement for Vsw Waveform ....................................................................... 4
3 CSD87381PEVM-603 Recommended Test Setup ..................................................................... 5
4 Efficiency versus Output Current for CSD87381P With TPS51219.................................................. 7
5 Switching Node Waveform, VIN = 12 V, Iout = 10 A................................................................... 7
6 Switching Node Waveform, VIN = 19 V, Iout = 10 A................................................................... 7
7 CSD87381PEVM-603 Top Layer Assembly Drawing (Top View).................................................... 8
8 CSD87381PEVM-603 Bottom Assembly Drawing (Bottom View).................................................... 8
9 CSD87381PEVM-603 Top Copper (Top View) ......................................................................... 9
10 CSD87381PEVM-603 Internal Layer 1 (Top View)..................................................................... 9
11 CSD87381PEVM-603 Internal Layer 2 (Top View) ................................................................... 10
12 CSD87381PEVM-603 Internal Layer 3 (Top View) ................................................................... 10
13 CSD87381PEVM-603 Internal Layer 4 (Top View) ................................................................... 11
14 CSD87381PEVM-603 Bottom Copper (Top View).................................................................... 11
List of Tables
1 CSD87381PEVM-603 Electrical Performance Specifications......................................................... 2
2 Function of Each Testpoint ................................................................................................ 6
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1
SLPU003A–February 2014–Revised February 2014 High Power Density, Low Profile NexFET™ Power Block II for Notebook
Power Supply
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