Yes I would be using a buck converter. BTW, any recommendations on one (for variable output)? One thing that attracted me to the 317 is everyone knows what they are, they are readily available, and I can easily find calculators, or at least the equations, for setting their voltages.
So whats a good variable buck converter, with a current capability similar to the 317? Ive been lookin through digikey, havent found much yet, found a Sharp PQ2CF1, but no equation to set its voltage.
Thanks