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TPS50601-SP: Unused pin of TPS50601-SP

ishii-ko
Prodigy 90 points
Part Number: TPS50601-SP

Tool/software:

Hello.

If the SS, PWRGD, and EN pins function are not used, is it okay to use these pin open?

Please advise me.

koji

  • +1
    TI__Expert 5061 points

    Hi Koji-san,

    Regarding the PWRGGD and EN pins, it is okay to leave them open if not used. PWRGD is an open-drain output, and EN is internally pulled up.

    It is not recommended to float the SS pin. A  SS capacitor should on the pin, as described in the device datasheet, to limit inrush current during device startup and avoid noise coupling into the pin during operation.

    Thanks,

    Andy