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LM5163-Q1: PGOOD functionality in standby and shutdown

Expert 7280 points
Part Number: LM5163-Q1
Other Parts Discussed in Thread: LM5163

Dear team,

I just wanted confirmation I understood how the PGOOD output of LM5163 is working, can you help me confirming below ?:

  • EN/UVLO < 1.1V --> Shutdown / PGOOD comparator is not supplied and the PGOOD output is floating (pulled-up)
  • 1.1V < EN/UVLO < 1.5V --> Standby / PGOOD comparator is supplied and reflects the output status (pulled down for FB < 0.9xVref and open drain/pulled-up for FB >= 0.95xVref)

Many thanks in advance!

Best regards,

PA