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[LTC3122] Soft Start reset

Category: Software
Product Number: LTC3122

Hi team,

Isn't the soft start reset if the output is shorted to GND?

Will not there be an inrush current when recovering from shorted to GND in a short time?

Best regards,

T-yoshi

  • Hi T-yoshi,

    Apologies for late response. 

    1. Isn't the soft start reset if the output is shorted to GND?

    ANS: There is no soft start reset if the output is recovering after short is removed.

    2. Will not there be an inrush current when recovering from shorted to GND in a short time?

    ANS: Please refer to Short-Circuit Response TOC in Page 6 of LTC3122 datasheet. There is no in-rush current. However, the part draws limited current from the input to charge the output capacitors as fast as possible.

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