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BQ27427: Using VDD LDO?

Cameron Wutzke
Expert 3612 points
Part Number: BQ27427

Am I able to use the integrated LDO to power something externally? I assume this 1.8V VDD is used to power the 1.8V logic lines, so making sure it doesn't droop is important. 

How much current could I pull?

Thanks,

Cameron Wutzke

  • 0
    TI__Mastermind 37761 points

    Hello Cameron,

    No, you are not able to use the integrated LDO to power anything else. The BQ27427 uses a very weak LDO
    (to maintain low power consumption) and is not able to sink any current other than the current necessary
    for the gauge.


    Sincerely,
    Nick Richards