> Love the hand drawn pic, maybe I should do that :-) seriously tho isn't > that just a bit complicated? Not if you consider that there are very few parts for what it does: Generate 3 regulated voltages. Overcurrent protected. Pi filtering all outputs. Operates down to 8 volts input. Power on/off with a logic level input. Filtered input. Power-Good output signal. Only one transistor and one diode heatsunk. Fan switched from raw 12 volts. No Maxim parts :-) Mostly though it's like every other power supply I've designed in the last 20 years and I'm very lazy. Best regards, Bob