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TPS2553: TPS2553 Input Capacitance when ILIM = IN

Jason Haedt
Expert 4600 points
Part Number: TPS2553

The TPS2553 mentions on page 15 that the minimum current limit configuration of ILIM = IN might require additional input capacitance to protect ILIM from noise. Do you have more information on this note? In this use case, our input is a regulated, shared 5V supply.

-Jason 

  • 0
    TI__Mastermind 18031 points

    Hi,

    On page 15,  current limit threshold is proportional to the current sourced out of iLim. Meaning must remain lim pin stable and can’t be disturbed by noise. So Input additional cap  is  recommended to be added.  

    For TI ‘s policy, will first click issue is solved button. If any, contact me any time. Thanks.