I need to drop the 12v or 5v voltage from a PC's PSU (in the case) down to 4.5v and 3v (two separate items)?

knektek7 years ago
3v regulator and 5v regulator with a small resistor
Two, LOW DROP OUT regulators, off the 5V line.
lemonie7 years ago
You need to do this or you want to? What needs powering?

orksecurity7 years ago
Two separate voltage regulators.