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TPS7A7200: Power management forum

Dilip Namdeo Mohol
Intellectual 1560 points
Part Number: TPS7A7200
  1. Want to know when  Power Good  is goes  high, whether it is at input supply or at the when enable is active.

 

  1. And what is the state of PG which is pulled high with 2.5v before enable is active   for  TPS7A7200

  • 0
    TI__Mastermind 44770 points

    HI Dilip,

    To answer your questions:

    1. PG goes high when VOUT is >90% of the VOUT target. Meaning if VOUT is 3.3V, PG will assert above ~2.97V. 

    2. As long as VIN is above 1.425V, the internal circuitry is up and running. So PG is held low until VOUT rises above the PG threshold. 

    I hope this answers your questions