SNVU907A July   2024  – August 2024 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 Startup/Shutdown With VIN
        3. 3.1.2.3 Startup/Shutdown With ENABLE ON and OFF
        4. 3.1.2.4 Switching
      3. 3.1.3 Thermal Performance
  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 PCB Layout Resources
        2. 6.2.1.2 Thermal Design Resources
  13. 7Revision History

2.1.1 EVM Connections

Referencing the EVM connections described in Table 2-1, Figure 2-1 shows the recommended test setup to evaluate the LM25137F-Q1-EVM5D3. Working at an ESD-protected workstation, verify that any wrist straps, boot straps or mats are connected and referencing the user to earth ground before handling the EVM.

LM25137F-Q1-EVM5D3 EVM Test Setup Figure 2-1 EVM Test Setup
Table 2-1 EVM Power Connections
LABELDESCRIPTION
VINPositive input voltage power and sense connection
GNDNegative input voltage power and sense connection
VOUT1Channel 1 positive output voltage power and sense connection
VOUT2Channel 2 positive output voltage power and sense connection
GNDNegative output voltage power and sense connection
Table 2-2 EVM Signal Connections
LABELDESCRIPTION
PGND GND connection
EN1, EN2 ENABLE inputs – tie to GND to disable the respective channel
PG1, PG2 Power Good outputs
FAULT1, FAULT2 FAULT outputs
SYNCOUT Synchronization output
VCC Bias rail connection
PFM/SYNCIN Synchronization input
IMON1, IMON2Current monitor outputs
CAUTION:

Refer to the LM5137-Q1 data sheet, quickstart calculator and WEBENCH® Power Designer for additional guidance pertaining to component selection and controller operation.