SLVU579A December   2011  – September 2021 TPS54427

 

  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 Load Transient Response
    7. 4.7 Output Voltage Ripple
    8. 4.8 Input Voltage Ripple
    9. 4.9 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

4.9 Start-Up and Shut-Down

The TPS54427 start-up and shut-down waveforms relative to VIN are shown in Figure 4-8 and Figure 4-9.

GUID-FA49ED9B-51DD-40B3-BFC4-2FAD5006DB74-low.gifFigure 4-8 TPS54427 Start-Up Relative to VIN
GUID-51306A2D-4434-4AAE-BB75-DECE8A22969A-low.gifFigure 4-9 TPS54427 Shut-down Relative to VIN

The TPS54427 start-up and shut-down waveforms relative to enable (EN) are shown in Figure 4-10 and Figure 4-11.

GUID-DF82A41A-0FCE-48F2-9E5D-43FAA923D076-low.gifFigure 4-10 TPS54427 Start-Up Relative to EN
GUID-A5520FEA-A459-40AF-B9D1-FA3F3C645124-low.gifFigure 4-11 TPS54427 Shut-down Relative to EN