Replacement part for IC4 #fst3253


Has anyone found a source for the SOIC footprint version of IC4, the FST3253? I have a unit on the bench with overheating of the 5v regulator, and it appears that IC4 is drawing excess current. Static measurement shows ~140 ohms VCC to ground. Everything else checks OK on the 5V bus. 
> I finally got it all I can't remember where I put it<

VY 73,


Sierra Vista, AZ


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