Other Parts Discussed in Thread: TPS54821
Tool/software:
I have a design where I use a TPS543C20 as the primary supply and a TPS54821 as a backup. They are powering the same voltage rail but will never both be enabled at the same time. Is there any problem with TPS54821seeing voltage at its output while disabled? Will it attempt to discharge the voltage by turning on the low side FET? Same question with the TPS543C20?
