How the White LED is driven in a high power torch ?....am looking for a switching circuit that can drive 1watt/3watt LED's without wasting power... working off 3 to 5 volts
I'm just curious - is there any particular reason you prefer the LR-12 to the TL783? I know it's a little cheaper, but the TL783 has tighter regulation, a wider range of voltages and higher current capability.