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TPS2557: faster current limit power switch

Part Number: TPS2557
Other Parts Discussed in Thread: TPS25221

Hello expert,

My customer has a issue on USB 5V short test. Their 5V power solution will response faster than TPS2557 which's short response time is 200ns, and TPS2557's short response time is 3.5us. May we know if we have faster response time solution could suggest to customer? Thanks a lot!!

Best regards,

Ann Lien

  • Hi Ann,

    I will give you suggestion once I checked it.

    Best regards,

    Ansel

  • Hi Ann,

    I have a check. Seem like they are all above 1us.

    Can you kindly tell me which part does customer use?

    Why do they need so fast short response time?

    For TI's policy, I will first click resolved button.

    If you have any other concern, contact me any time.

    If you think resolved, please help click 'Issue is solved button'.

    Thanks.

  • Hello Ziv,

    After double checked with customer, they would like to know the part number with fastest short response time. May I have your help to reply the part number for me?

    Best regards,

    Ann Lien

  • Hi Ann,

    I checked related power switch of our team.

    The fast response time is 1.5us from tps25221.

    By the way, with so fast response time, I think the peak current will be very high.

    For TI's policy, I will first click resolved button.

    If you have any other concern, contact me any time.

    If you think resolved, please help click 'Issue is solved button'.

    Thanks.