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TPS7A19: PG Floating Possibility

Jiangpeng Li
Prodigy 20 points
Part Number: TPS7A19

Tool/software:

Dear TI Team,

Have you ever done some noise tests for PG pin floating scenarios? Our application limited the numbers of components. So we are expecting to leave PG pin floating without pull-up resistor, reducing the numbers of components.

In the datasheet, I found it only mentioned "This open-drain pin must be connected to VOUT through an external resistor."

What if we don't use this PG pin? Do you think it's acceptable to leave it floating? It's better if you have any relative noise tests.

Thanks a lot!

Regards,

JP

  • +1
    TI__Genius 13740 points

    Hi JP,

    Yes, it is completely acceptable to leave the PG pin floating if the functionality is not desired. The noise will not be affected significantly by whether the PG Pin is connected or left floating. We do not have any test data specific to your request.

    Best Regards

    Ishaan