SNVU898A May   2024  – October 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
      1. 1.3.1 Application Circuit Diagram
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Test Setup and Procedure
      1. 2.1.1 EVM Connections
      2. 2.1.2 Test Equipment
      3. 2.1.3 Recommended Test Setup
        1. 2.1.3.1 Input Connections
        2. 2.1.3.2 Output Connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Line and Load Regulation, Efficiency
  8. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Conversion Efficiency
      2. 3.1.2 Operating Waveforms
        1. 3.1.2.1 Load Transient Response
        2. 3.1.2.2 Line Transient Response
        3. 3.1.2.3 Start-Up and Shutdown With VIN
      3. 3.1.3 CISPR 25 EMI Performance
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 Component Drawings
    3. 4.3 Bill of Materials
  10. 5Device and Documentation Support
    1. 5.1 Device Support
      1. 5.1.1 Development Support
    2. 5.2 Documentation Support
      1. 5.2.1 Related Documentation
        1. 5.2.1.1 PCB Layout Resources
        2. 5.2.1.2 Thermal Design Resources
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7Revision History

1.3.1 Application Circuit Diagram

Figure 1-1 shows the schematic of an LM25148B-Q1-based synchronous buck regulator with an active EMI filter.

LM25148B-Q1EVM-2100 LM25148B-Q1 Synchronous Buck Regulator Simplified SchematicFigure 1-1 LM25148B-Q1 Synchronous Buck Regulator Simplified Schematic