I was having a conversation with the chief design engineer at my place
of work yesterday. He was saying he'd have to install an extra 3.3V
voltage regulator in our design because I'd just discovered that we
needed a second switched 3.3V supply. I suggested we used a high-side
FET switch instead  - a suggestion he dismissed by saying the voltage
drop across the FET was around 0.6V which would put the supply well
out of spec.

This man is a chief hardware designer of 40 years experience. I'm just
a computer scientist who does electronics for a hobby. Am I crazy or
is he completely wrong on this one? I'd be expecting a voltage drop in
the millivolts at the low currents we're talking about - not 0.6V. Can
someone set me straight here?

Cheers,
Zik
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