amb
Member of the Trade: AMB Laboratories
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Quote:
U4D and U9D are not the same part and have opposite behaviors. U4D should be MCP100 whereas U9D should be MCP101. Look carefully at what's populated on your board at both locations.
Yeah, the voltage holds stead at ~3.3V on pin 12. Since I'm sure I've got the right part, then it's damaged as you say. I wonder if it'd do anything if I swapped U4D and U9D?
U4D and U9D are not the same part and have opposite behaviors. U4D should be MCP100 whereas U9D should be MCP101. Look carefully at what's populated on your board at both locations.