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

3.7 Thermal Performance

Figure 3-19 through Figure 3-20 show the temperature rise of the TPS54KB20 ICs at full 25-A load. Figure 3-19 and Figure 3-20 have only one TPS54KB20 on and loaded. A minimum of 10 minutes for soak time was used before taking each measurement.

GUID-20230406-SS0I-GQBL-VBCS-XSNWGS6N9CWQ-low.svgFigure 3-19 U1 Thermal Performance – 25-A Load and U2 off
GUID-20230406-SS0I-JC0T-MQJ4-BXWVDCTRCHDS-low.svgFigure 3-20 U2 Thermal Performance – 25-A Load and U1 off