SLVUCE3 april   2023 TPS54KB20

 

  1.    TPS54KB20EVM 25-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 Frequency and Operation Mode Setting (MSEL Pin)
  5. 3Test Setup and Results
    1. 3.1 Input/Output Connections
    2. 3.2 Efficiency
    3. 3.3 Output Voltage Regulation
    4. 3.4 Load Transient and Loop Response
    5. 3.5 Output Voltage Ripple
    6. 3.6 Start-up and Shutdown with EN
    7. 3.7 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 TPS54KB20EVM evaluation module. The section also includes test results typical for the evaluation module and covers efficiency, output voltage regulation, load transients, loop response, output ripple, 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 3.310 V, switching frequency of 1400 kHz, and maximum current limit setting
  • U2 with the default setting output voltage of 3.310 V, switching frequency of 800 kHz, and maximum current limit setting
  • With the other converter disabled
GUID-20230331-SS0I-BDCH-WPVS-ZDCTSZG0GHGD-low.png Figure 3-1 TPS54KB20EVM