AnsweredAssumed Answered

About PGOOD of ADP2164

Question asked by xiaoyur on Mar 31, 2017
Latest reply on Apr 3, 2017 by Migs



   I just want to make the PGOOD pin be high.


   The EN pin is a slope signal (high is 4.1646V and low is 4.076V) with a period of 1.8ms.

   SW is rectangular wave with a period of 1.6us. FB is 602 mV, PGOOD is 135mV.


   According to the datasheet of ADP2164, there are two questions I can not understand.

      i. FB is fit the range of 600mV+-10%, but the PGOOD is low (I guess the 135mV indicates the low). Why?

      ii. What is the minimum voltage of high state of PGOOD pin?


Thanks for any reply!