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Power Sequence by using TPS54325 SS pin

Wu JW
Intellectual 2935 points
Other Parts Discussed in Thread: TPS54620, TPS54325

My customer want to use TPS54325 to track another output. Can we use the similar circuit which is suggested in TPS54620 as following picture?

  • 0
    TI__Guru**** 191445 points

    That feature is not documented ar characterized, but it does appear to work.  I did a quick test in the lab and teh output will scale with the SS voltage for SS between 0 and  0.765 V (approxinately).  You will want to ensure that the SS voltage ends up well above 0.8 V