Texas Instruments LM27341, Руководство пользователя

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User’s Guide
LM27341 Step-Down Converter Evaluation Module User's
Guide
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
2 Evaluation Board Schematic ................................................................................................................................................. 3
3 Powering and Loading Considerations ................................................................................................................................ 4
3.1 Quick Start Procedure........................................................................................................................................................ 4
3.2 Starting Up......................................................................................................................................................................... 4
3.3 Overcurrent Protection....................................................................................................................................................... 4
3.4 Synchronization.................................................................................................................................................................. 4
3.5 Adjusting the Output Voltage.............................................................................................................................................. 4
4 Performance Characteristics ................................................................................................................................................. 5
5 Layout and Bill of Materials ................................................................................................................................................... 6
6 PCB Layout .............................................................................................................................................................................. 7
7 Revision History ...................................................................................................................................................................... 8
List of Figures
Figure 4-1. Conversion Efficiency Versus Output Current........................................................................................................... 5
Figure 4-2. Output Voltage During a Typical Start-Up Sequence................................................................................................ 5
Figure 6-1. Top Layer and Overlay.............................................................................................................................................. 7
Figure 6-2. Internal Layer 1......................................................................................................................................................... 7
Figure 6-3. Internal Layer 2......................................................................................................................................................... 8
Figure 6-4. Bottom Layer............................................................................................................................................................. 8
List of Tables
Table 5-1. Bill of Materials............................................................................................................................................................ 6
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SNVA381B – NOVEMBER 2008 – REVISED DECEMBER 2021
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