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TPS73801-SEP: Enable pin

Itai Cohen
Prodigy 60 points
Part Number: TPS73801-SEP

Tool/software:

Is it possible to drive logic 'H' (3.3V) to enable pin while input voltage is low? will it damage the LDO?

  • 0
    TI__Genius 12150 points

    Hi Itai,

    EN being HIGH while VIN is still low is not a concern in itself.

    Since this part doesn't have a soft start feature, this approach can be useful to mitigate inrush current during startup. This is especially true if the VIN rail is slew-rate controlled (for example, if the upstream regulator that supplies it has soft start).

    Thanks,

    Sarah