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

4.8 Output Voltage Ripple

The TPS54428EVM-052 output voltage ripple is shown in Figure 4-8. The output current is the rated full load of 4 A.

GUID-FDEBFBE9-8D3E-4722-8D7A-AA6599A48B6D-low.gifFigure 4-8 TPS54428EVM-052 Output Voltage Ripple

The TPS54428EVM-052 output voltage ripple during the start of Eco-mode™ operation is shown in Figure 4-9 . The output current is 30 mA.

GUID-3ADBC18B-2E05-4F78-97A4-E46453939EF1-low.gifFigure 4-9 TPS54428EVM-052 Eco-mode™ Output Voltage Ripple

The TPS54428EVM-052 output voltage ripple during Eco-mode™ operation is shown in Figure 4-10. The output current is 0 mA.

GUID-D250FDEB-CE88-4F9E-98CD-24E7952FE178-low.gifFigure 4-10 TPS54428EVM-052 Eco-mode™ Output Voltage Ripple at No Load