However, when I started to look at the application data closely, my enthusiasm waned a bit. It seems the voltage set pin is so sensitive to outside influences that it requires guarding. Also, I don't particularly like using a 1.2 meg resistor for the voltage set resistor. So, has anyone actually used one of these, and how did it go? This may help: http://cds.linear.com/docs/Datasheet/3080fa.pdf