Texas Instruments TPS54233, Руководство пользователя

Страница: 1 / 19

User’s Guide
TPS54233 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 .......................................................................................................................................................... 3
2.1 Input / Output Connections................................................................................................................................................ 3
2.2 Efficiency............................................................................................................................................................................ 4
2.3 Output Voltage Load Regulation........................................................................................................................................ 5
2.4 Output Voltage Line Regulation......................................................................................................................................... 6
2.5 Load Transients.................................................................................................................................................................. 6
2.6 Loop Characteristics.......................................................................................................................................................... 7
2.7 Output Voltage Ripple........................................................................................................................................................ 7
2.8 Input Voltage Ripple........................................................................................................................................................... 8
2.9 Powering Up....................................................................................................................................................................... 8
3 Board Layout ......................................................................................................................................................................... 10
3.1 Layout.............................................................................................................................................................................. 10
3.2 Estimated Circuit Area...................................................................................................................................................... 11
4 Schematic and Bill of Materials ........................................................................................................................................... 12
4.1 Schematic........................................................................................................................................................................ 12
4.2 Bill of Materials................................................................................................................................................................. 13
5 Revision History ................................................................................................................................................................... 13
List of Figures
Figure 2-1. TPS54233EVM-373 Efficiency.................................................................................................................................. 4
Figure 2-2. TPS54233EVM-373 Low Current Efficiency.............................................................................................................. 5
Figure 2-3. TPS54233EVM-373 Load Regulation....................................................................................................................... 5
Figure 2-4. TPS54233EVM-373 Line Regulation........................................................................................................................ 6
Figure 2-5. TPS54233EVM-373 Transient Response................................................................................................................. 6
Figure 2-6. TPS54233EVM-373 Loop Response........................................................................................................................ 7
Figure 2-7. TPS54233EVM-373 Output Ripple........................................................................................................................... 7
Figure 2-8. TPS54233EVM-373 Input Ripple.............................................................................................................................. 8
Figure 2-9. TPS54233EVM-373 Start-Up Relative to V
IN
........................................................................................................... 8
Figure 2-10. TPS54233EVM-373 Start-up Relative to Enable.................................................................................................... 9
Figure 2-11. TPS54233EVM-373 Eco-Mode Operation............................................................................................................... 9
Figure 3-1. TPS54233EVM-373 Top-Side Layout..................................................................................................................... 10
Figure 3-2. TPS54233EVM-373 Bottom-Side Layout................................................................................................................ 11
Figure 3-3. TPS54233EVM-373 Top-Side Assembly................................................................................................................. 11
Figure 4-1. TPS54233EVM-373 Schematic............................................................................................................................... 12
List of Tables
Table 1-1. Input Voltage and Output Current Summary............................................................................................................... 2
Table 1-2. TPS54233EVM-373 and Performance Specification Summary.................................................................................. 2
Table 1-3. Output Voltages Available........................................................................................................................................... 3
Table 2-1. EVM Connectors and Test Points............................................................................................................................... 4
Table 4-1. TPS54233EVM-373 Bill of Materials......................................................................................................................... 13
Trademarks
SWIFT ™ is a trademark of Texas Instruments.
All trademarks are the property of their respective owners.
www.ti.com Table of Contents
SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021
Submit Document Feedback
TPS54233 Step-Down Converter Evaluation Module User's Guide 1
Copyright © 2021 Texas Instruments Incorporated