How do these things work? From what I'm reading it appears tha you can get say 11.7V output from a 12V source at 1A -> is this correct? How does it work if you need 1.7V across the transistor minimum? I'm considering using this as a voltage follower in place of a power transistor as I could get a higher output voltage.
[I'm trying to make a fan speed controller buffer to handle multiple fans on a single controller line (eg there are 3 fans on my PC watercooling radiator) but I want to be able to get as close to 12V as possible for max speed when things get hot. Pulse width modulation (with 3 lead fans) makes the tach signal worthless so can't go that way btw]
[I'm trying to make a fan speed controller buffer to handle multiple fans on a single controller line (eg there are 3 fans on my PC watercooling radiator) but I want to be able to get as close to 12V as possible for max speed when things get hot. Pulse width modulation (with 3 lead fans) makes the tach signal worthless so can't go that way btw]