Texas Instruments TPS53915, User Manual

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User’s Guide
TPS53915 Step-Down Converter Evaluation Module User's
Guide
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
2 Description .............................................................................................................................................................................. 2
2.1 Typical Applications............................................................................................................................................................ 2
2.2 Features............................................................................................................................................................................. 2
3 Electrical Performance Specifications ................................................................................................................................. 2
4 Schematic ................................................................................................................................................................................ 3
5 Test Setup ................................................................................................................................................................................ 4
5.1 Test Equipment.................................................................................................................................................................. 4
5.2 Recommended Test Setup................................................................................................................................................. 5
6 Configurations ........................................................................................................................................................................ 6
6.1 PMBus Address Selection.................................................................................................................................................. 6
6.2 Mode Selection.................................................................................................................................................................. 6
6.3 VDD Pin Supply Selection.................................................................................................................................................. 6
7 Test Procedure ........................................................................................................................................................................ 8
7.1 Line and Load Regulation and Efficiency Measurement Procedure.................................................................................. 8
7.2 PMBUS Setup and Verification.......................................................................................................................................... 8
7.3 Control-Loop Gain and Phase-Measurement Procedure................................................................................................. 10
7.4 List of Test Points............................................................................................................................................................. 11
7.5 Equipment Shutdown....................................................................................................................................................... 11
8 EVM Assembly Drawing and PCB Layout .......................................................................................................................... 12
9 Bill of Materials ..................................................................................................................................................................... 16
10 Revision History ................................................................................................................................................................. 17
List of Figures
Figure 4-1. TPS53915EVM-PWR587 Schematic........................................................................................................................ 3
Figure 5-1. Tip and Barrel Measurement for V
OUT
Ripple............................................................................................................ 4
Figure 5-2. TPS53915EVM-587 Top Layer for Test Setup.......................................................................................................... 5
Figure 7-1. Select Device Scanning Mode.................................................................................................................................. 9
Figure 7-2. GUI for the Fusion Digital Power Designer............................................................................................................. 10
Figure 8-1. TPS53915EVM-587 Top-Layer Assembly Drawing................................................................................................. 12
Figure 8-2. TPS53915EVM-587 Bottom-Layer Assembly Drawing........................................................................................... 12
Figure 8-3. TPS53915EVM-587 Top Layer, Copper.................................................................................................................. 13
Figure 8-4. TPS53915EVM-587 Layer Two, Copper................................................................................................................. 13
Figure 8-5. TPS53915EVM-587 Layer Three, Copper.............................................................................................................. 14
Figure 8-6. TPS53915EVM-587 Layer Four, Copper................................................................................................................ 14
Figure 8-7. TPS53915EVM-587 Layer Five, Copper................................................................................................................. 15
Figure 8-8. TPS53915EVM-587 Bottom Layer, Copper............................................................................................................ 15
List of Tables
Table 3-1. TPS53915EVM-PWR587 Electrical Performance Specifications
(1)
........................................................................... 2
Table 6-1. PMBus Address Selection Settings............................................................................................................................ 6
Table 6-2. Mode Selection........................................................................................................................................................... 6
Table 6-3. Enable Selection......................................................................................................................................................... 7
Table 7-1. Test Point Functions.................................................................................................................................................. 11
Table 9-1. EVM Components List (Based on the Schematic, see Figure 4-1 )........................................................................... 16
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SLUUAS2C – OCTOBER 2013 – REVISED NOVEMBER 2021
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