I wouldn't suggest this, because it depends on the Vgs(th) being temp stable but I have used a variant of this in a high voltage supply that worked very well.
But!, It works with a 10.5 volt supply and holds 2 amps on the output with very little ripple, some where around 10 volts out with +/- 500 uv maybe.
Jamie
That is a VERY impressive simulation!
Yes it is, I am wondering if I put the correct one up? ;)
In any case, I did bench it tonight, I didn't have the same P-channel fet but I used something I had hanging on a heat sink. PMOSes are not very popular for some reason ?
Any way, I had to add a ceramic cap to remove some RF noise, now I think I understand where the noise was coming from, this was on a bread board with dangling wires, I didn't have any local bypasses there :)
Jamie
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