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  1. #1
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    soft-start in SC charge pump regulator

    1 Did anyone know that the SC charge pump need a soft start circuit?
    2 What is the purpose of soft start circuit?
    Thank you!

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  2. #2
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    Re: soft-start in SC charge pump regulator

    Quote Originally Posted by schwang1970
    1 Did anyone know that the SC charge pump need a soft start circuit?
    2 What is the purpose of soft start circuit?
    Thank you!
    1.
    I think that we do not need soft start circuit in charge pump circuit.
    beacuse the flying cap is so small, in charge phase the inrush is so samll.
    Note:Charge phase :the VIn charge flying cap.
    Discharge Phase :Flying Cap discharge to Vo.


    2.
    The Soft Start purpose.
    1.reduce vin inrush current.
    2.smooth vout waveform.



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