cool so instead of that xl1509 i'll use 7805 voltage regulator with heatsink and two capacitors
how hot do you think it will get if i use it as car charger?
would it melt the plastic case of the original charger if i put it inside?
what about NCP 1117 which would be better for such a use?
will it be better to use premade switching voltage regulator module like LM2576?