SLUUCK9 april   2023 TPSM843B22

 

  1.    TPSM843B22EVM 20-A, Regulator Evaluation Module
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Background
    2. 1.2 Before You Begin
    3. 1.3 Performance Characteristics Summary
  4. 2Configurations and Modifications
    1. 2.1 Output Voltage
    2. 2.2 Switching Frequency (FSEL Pin)
    3. 2.3 Current Limit, Soft-Start Time, and Internal Compensation (MSEL Pin)
    4. 2.4 Enable, UVLO (EN Pin)
  5. 3Test Setup and Results
    1. 3.1 Input and Output Connections
    2. 3.2 Efficiency
    3. 3.3 Output Voltage Regulation
    4. 3.4 Load Transient and Loop Response
    5. 3.5 Input Voltage Ripple
    6. 3.6 Start-up and Shutdown with EN
    7. 3.7 Start-up and Shutdown with VIN
    8. 3.8 Start-up Into Pre-Bias
    9. 3.9 Thermal Performance
  6. 4Board Layout
    1. 4.1 Layout
  7. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials

3 Test Setup and Results

This section describes how to properly connect, set up, and use the TPSM843B22EVM evaluation module. The section also includes test results typical for the evaluation module and covers efficiency, output voltage regulation, load transients, loop response, input ripple, start-up, and current limit modes. Measurements are taken with the following conditions unless otherwise noted.

  • 12-V input
  • Room temperature (20°C to 25°C)
  • U1 with the default setting output voltage of 1 V, switching frequency of 1000 kHz, and maximum current limit setting