I'd like to replace my 7805 with a 5v out switching regulator. My inputs will likely not be outside of 7-12v and I certainly do not need more than 1 amp any time soon. So I'm wondering if I should go with an IC or use transistors to make the cheapest switching regulator possible. I'm hoping less than 2 or 3 dollars. A specific part number or schematic would really help me out.
Thanks
Thanks