Hi,

I'm trying to hunt down a regulator that can produce a regulated +/- 12V supply from a 12V battery pack. Ideally I'd like it to have an enable/shutdown pin that can be controlled via a uprocessor and reduce the quiescent current to a few uAs or less. Does anyone have any suggestions? I've been searching for a few hours and can't seem to find one with the necessary specs.

Thanks!

 

Use two switching regulator like MC34063,for negative voltage use "Voltage inverting converter".
http://www.onsemi.com/pub/Collateral/MC34063A-D.PDF

Good Luck

 

Hi,

I'm trying to hunt down a regulator that can produce a regulated +/- 12V supply from a 12V battery pack. Ideally I'd like it to have an enable/shutdown pin that can be controlled via a uprocessor and reduce the quiescent current to a few uAs or less. Does anyone have any suggestions? I've been searching for a few hours and can't seem to find one with the necessary specs.

Thanks!

An important information is missing: what's the max current for the negative supply?

I could recommend a switched capacitor voltage inverter IC like the LT1054 but you can't draw too much current from it.