Quote Originally Posted by barkerben
Came across: LP2966

I could possible use the regulator to charge a capacitor, and then the capacitor to drive the module. As long as the module is off a lot more than it is on, this should work...

Ben
Unless that cap is relatively gargantuan, it won't work. If you don't have size issues, get a higher voltage battery pack (8 AA's?), and use a step down adjustable regulator. Set it to 3.5 volts. You will be amazed at the capacity. Many of these gems run at 95% efficiency, so drawing an amp at 3.5 volts will only draw 300 mils at 12 volts. This as opposed to running a linear regulator which will draw an amp, and become a circuit board warmer!

Hope this helps,
Ron