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TPSM84424: Leaving power good pin floating.

Binayak Shrestha88
Expert 1520 points
Part Number: TPSM84A22
Other Parts Discussed in Thread: LMZ31710, LMZ21701,

HI TI team,

Can I leave power good pin (PGOOD) floating if power good functionality is not required? What does TI recommend?

Thanks,

Binayak

 

  • 0
    Expert 1520 points

    Part Number: LMZ31710

    Hi TI team,

    Can I leave power good pin (PWRGD) floating if power good functionality is not required? What does TI recommend?

    Regards,

    Binayak

  • 0
    Expert 1520 points

    Part Number: LMZ21701

    Hi TI  Team,

    Can I leave power good pin (PG) floating if power good functionality is not required? What does TI recommend?

    Thanks,

    Binayak

  • 0
    Expert 1520 points

    Part Number: TPSM84A22

    HI TI Team,

    Can I leave power good pin (PGOOD) floating if power good functionality is not required? What does TI recommend?

    Thanks,

    Binayak

  • 0
    TI__Genius 17905 points

    Hi Binayak,

    I see you have asked this question about TPSM84X24, TPSM84A22, LMZ21701, and LMZ31710.

    PGOOD is just a simple open drain FET output for these devices and for most (if not all) TI power devices with the PGOOD feature. This FET is often shown in the datasheet Functional Block Diagram. Leaving the pin floating is fine if you do not intend to use the output for any signalling or monitoring purposes, and I see customers do this all the time.

    Kris