You should be just fine. On 4/7/2016 1:38 PM, Bill Sudbrink wrote: > If you have a circuit which is normally designed to > operate with an unregulated supply, through a regulator... > say unregulated +8 through a 7805 to a regulated +5 and > you want to test it independent of the +8 supply, if > you leave the unregulated rail unattached and put +5 > switcher straight onto the regulated +5 rail, will you > damage the 7805? Clearly the VIN is open, but the ground > pin will still be attached. Would this push voltage > back through and screw things up? > > Thanks, > Bill S. > > >
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