SLVU578A December   2011  – September 2021 TPS54428

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Output Filter and Closed-Loop Response
  5. 4Test Setup and Results
    1. 4.1  Input/Output Connections
    2. 4.2  Start-Up Procedure
    3. 4.3  Efficiency
    4. 4.4  Load Regulation
    5. 4.5  Line Regulation
    6. 4.6  Frequency
    7. 4.7  Load Transient Response
    8. 4.8  Output Voltage Ripple
    9. 4.9  Input Voltage Ripple
    10. 4.10 Start-Up and Shut-Down
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic, Bill of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
    3. 6.3 Reference
  8. 7Revision History

4.3 Efficiency

Figure 4-1 shows the efficiency for the TPS54428EVM-052 at an ambient temperature of 25°C.

GUID-B80BBC03-1A2B-4DDB-B836-30EAB03DD9C8-low.pngFigure 4-1 TPS54428EVM-052 Efficiency

Figure 4-2 shows the efficiency at light loads for the TPS54428EVM-052 at an ambient temperature of 25°C.

GUID-8CD5A9F4-B4F8-435D-A88E-C2A63EAF226E-low.pngFigure 4-2 TPS54428EVM-052 Light-Load Efficiency