SLVUB56A July   2017  – September 2021 TPS54424

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Setpoint
      2. 1.3.2 Adjustable UVLO
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Regulation
    4. 2.4  Load Transient and Loop Response
    5. 2.5  Output Voltage Ripple
    6. 2.6  Input Voltage Ripple
    7. 2.7  Powering Up
    8. 2.8  Powering Down
    9. 2.9  Start-Up Into Pre-Bias
    10. 2.10 Hiccup Mode Current Limit
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

2.8 Powering Down

Figure 2-14 and Figure 2-15 show the TPS54424EVM-779 shutdown. The input voltage for these plots is 12 V and the load is 1 Ω.

GUID-4A50ECF6-90DF-47CD-8565-A608D7AB6795-low.pngFigure 2-14 TPS54424EVM-779 Shutdown Relative to VIN
GUID-794A5903-20B7-4F32-83FF-131541C66DE3-low.pngFigure 2-15 TPS54424EVM-779 Shutdown Relative to Enable