SLVU263A August   2008  – October 2021 TPS54231

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Set Point
  3. 2Test Setup and Results
    1. 2.1  Input / Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Load Regulation
    4. 2.4  Output Voltage Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up
    10. 2.10 Eco-mode Operation
    11. 2.11 Thermal Characteristics
  4. 3Board Layout
    1. 3.1 Layout
    2. 3.2 Estimated Circuit Area
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

2.11 Thermal Characteristics

This section shows a thermal image of the TPS54231EVM-372 running at 28 V input and 2 A load. These are the worst case conditions for maximum power loss. There is no air flow and the ambient temperature is 25°C. The peak temperature of the IC (85.8°C) is well below the maximum recommended operating condition listed in the datasheet of 150°C.

GUID-1FD4C99A-DA35-4205-A6B9-1C4CFEE45B46-low.pngFigure 2-12 TPS54231EVM-372 Thermal Image