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TPSM84824: en LOW,Vout = 1.5V

zhang ping
Genius 3835 points
Part Number: TPSM84824
Other Parts Discussed in Thread: PTH08T250W

The TPSM84824 EN pin is at low power level, and the Vout still has a 1.5V output. Can you help analyze the cause?

After PTH08T250W EN is effective, it takes approximately 40ms to output. What is the reason for this delay? Is it normal?

1072.PWR.pdf

  • 0
    TI__Mastermind 26740 points

    Zhang,

    Are you referring to U81 (1.5V) TPSM84824 design for the EN question? Can you share the waveforms for Vin, EN and Vout on that TPSM84824?

    And the waveform you are sharing here is for U100 (PTH08T250W), is that right? Let me know. Also, if possible, please share the VIN waveform along with EN and VOUT.

    Thanks,

    Amod