Texas Instruments TPS54332EVM-416, User Manual

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User’s Guide
TPS54332 Step-Down Converter Evaluation Module User's
Guide
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
1.1 Background........................................................................................................................................................................ 2
1.2 Performance Specification Summary................................................................................................................................. 2
1.3 Modifications...................................................................................................................................................................... 3
2 Test Setup and Results .......................................................................................................................................................... 4
2.1 Input / Output Connections................................................................................................................................................ 4
2.2 Efficiency............................................................................................................................................................................ 5
2.3 Output Voltage Load Regulation........................................................................................................................................ 6
2.4 Output Voltage Line Regulation......................................................................................................................................... 7
2.5 Load Transients.................................................................................................................................................................. 7
2.6 Loop Characteristics.......................................................................................................................................................... 8
2.7 Output Voltage Ripple........................................................................................................................................................ 8
2.8 Input Voltage Ripple........................................................................................................................................................... 9
2.9 Powering Up....................................................................................................................................................................... 9
2.10 Eco-mode Operation...................................................................................................................................................... 10
3 Board Layout ......................................................................................................................................................................... 11
3.1 Layout............................................................................................................................................................................... 11
3.2 Estimated Circuit Area..................................................................................................................................................... 12
4 Schematic and Bill of Materials ........................................................................................................................................... 13
4.1 Schematic........................................................................................................................................................................ 13
4.2 Bill of Materials................................................................................................................................................................. 15
5 Revision History ................................................................................................................................................................... 15
List of Figures
Figure 2-1. TPS54332EVM-416 Efficiency.................................................................................................................................. 5
Figure 2-2. TPS54332EVM-416 Low Current Efficiency.............................................................................................................. 6
Figure 2-3. TPS54332EVM-416 Load Regulation....................................................................................................................... 6
Figure 2-4. TPS54332EVM-416 Line Regulation........................................................................................................................ 7
Figure 2-5. TPS54332EVM-416 Transient Response................................................................................................................. 7
Figure 2-6. TPS54332EVM-416 Loop Response........................................................................................................................ 8
Figure 2-7. TPS54332EVM-416 Output Ripple........................................................................................................................... 8
Figure 2-8. TPS54332EVM-416 Input Ripple.............................................................................................................................. 9
Figure 2-9. TPS54332EVM-416 Start-Up Relative to V
IN
........................................................................................................... 9
Figure 2-10. TPS54332EVM-416 Eco–mode™ Operation........................................................................................................ 10
Figure 3-1. TPS54332EVM-416 Top-Side Layout...................................................................................................................... 11
Figure 3-2. TPS54332EVM-416 Bottom-Side Layout................................................................................................................ 12
Figure 3-3. TPS54332EVM-416 Top-Side Assembly................................................................................................................. 12
Figure 4-1. TPS54332EVM-416 Schematic............................................................................................................................... 14
List of Tables
Table 1-1. Input Voltage and Output Current Summary............................................................................................................... 2
Table 1-2. TPS54332EVM-416 Performance Specification Summary......................................................................................... 2
Table 1-3. Output Voltages Available........................................................................................................................................... 3
Table 2-1. EVM Connectors and Test Points............................................................................................................................... 5
Table 4-1. TPS54332EVM-416 Bill of Materials......................................................................................................................... 15
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SLVU276A – FEBRUARY 2009 – REVISED OCTOBER 2021
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