dramrattan
Member
Ok i'm going to buy the LM7805 voltage regulator in a couple hours time after checking out its datasheet. I saw at the input there is a 0.33uF capacitor and a 0.1uF capacitor at the output but how do i know what voltage on the capacitor i should ask for?...20V...50V?
I read on this forum that the voltage rating should be the voltage used in the circuit multiply by 2 times root 2(1.4142). So the 0.33uF capacitor at the input should be, if i'm using a 9V battery at the inout voltage: 9V X 2 X 1.4142 = 25V? & the 0.1uF capacitor at the output should be 5V X 2 X 1.4142 = 15V?
I read on this forum that the voltage rating should be the voltage used in the circuit multiply by 2 times root 2(1.4142). So the 0.33uF capacitor at the input should be, if i'm using a 9V battery at the inout voltage: 9V X 2 X 1.4142 = 25V? & the 0.1uF capacitor at the output should be 5V X 2 X 1.4142 = 15V?