I have two sources of 5v on a PCB. One is from an on-board LDO and the other is from an external DC supply. If the external supply is attached and there is no input to the LDO will it be damaged? I believe the LDO's transistors will all be back-biased so there will be no problem but I want some other opinions. See the attached schematic for details.
Joined: Mon. Aug 3, 2009
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