I am working on a circuit for a LT3080 using a Lab Power supply circuit from the Datasheet. It has a POT to adjust both the current and the voltage. The POT for the current specs 100k 0A to 1A. The POT for the voltage specs 1MEG. Neither mentions voltage which is common for most circuits. However when I order from Digikey I have to select a POT with a voltage rating. How do I know what voltage to use? My PSU will have a 19.5 volt 3.5 amp input power supply (a laptop brick). Can someone give me a little enlightenment on selection of these POTS please?
Thanks.