[sdiy] 7.5V regulator?

[Steve Lenham]

On 20/05/2015 21:29, Ian Fritz wrote:
> I need to power a CMOS chip off of +/- 7.5V and was wondering if there
> is a convient drop-in regulator or reference.  I looked at my usual
> sites but didn't find one.  Of course, I can always use the good ole
> 317/337 adjustable regulators, but ...

If this is just to accommodate the limited overall supply voltage of 
405x switches, virtually every design I have ever seen gets by with an 
ultra-simple resistor + Zener + decoupling cap arrangement for each of 
the lower rails. I've done it in several commercial designs and it was 
good enough for top-end Lexicons...

Steve L.