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TPS74401RGWT

Mario Schuppan
Prodigy 160 points

on the Picture you could see my voltage design. is this design correct?

  • 0
    TI__Mastermind 23361 points
    Hi Mario,

    The schematic you provided will generate the 3.3V from 1st stage and 1.8V from the 2nd stage. Please see my additional comments as followings:
    1. You have PG connected to the Vin. Usually PG is tied to Vout because when device is disabled, PG path won' t sink current due to Vout is OFF. When you have PG connected through a resistor to Vin, you will have a constant path to ground even you have the device disabled.
    2. You don't have to put the resistor between Vout and Enable pin.

    Regards,
    Jason Song