SNVU891 February   2025 LM25137 , LM25137-Q1 , LM25137F-Q1 , LM5137 , LM5137-Q1 , LM5137F , LM5137F-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
      1. 1.3.1 Application Circuit Diagrams
    4. 1.4 Device Information
  8. 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
  9. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Efficiency
      2. 3.1.2 Operating Waveforms
        1. 3.1.2.1 Load Transient Response
        2. 3.1.2.2 Start-Up and Shutdown With VIN
        3. 3.1.2.3 Start-Up and Shutdown With ENABLE ON and OFF
        4. 3.1.2.4 Switching Operation
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 Component Drawings
      2. 4.2.2 Layout Guidelines
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Device and Documentation Support
    1. 6.1 Device Support
      1. 6.1.1 Development Support
    2. 6.2 Documentation Support
      1. 6.2.1 Related Documentation
        1. 6.2.1.1 Low-EMI Design Resources
        2. 6.2.1.2 PCB Layout Resources
        3. 6.2.1.3 Thermal Design Resources

4.2 PCB Layout

Figure 4-2 through Figure 4-9 show the design of the EVM using a 6-layer PCB with 2oz copper weight (2.8mils or 70µm copper thickness). The EVM is essentially a single-sided design except for the EMI filter and some optional 0603 components located on the bottom side.

LM5137F-Q1-EVM12V Top Copper (Top View) Figure 4-2 Top Copper (Top View)
LM5137F-Q1-EVM12V Layer 2 Copper (Top View) Figure 4-3 Layer 2 Copper (Top View)
LM5137F-Q1-EVM12V Layer 3 Copper (Top View) Figure 4-4 Layer 3 Copper (Top View)
LM5137F-Q1-EVM12V Layer 4 Copper (Top View) Figure 4-5 Layer 4 Copper (Top View)
LM5137F-Q1-EVM12V Layer 5 Copper (Top View) Figure 4-6 Layer 5 Copper (Top View)
LM5137F-Q1-EVM12V Bottom Copper (Top View) Figure 4-7 Bottom Copper (Top View)