Need help: Transistor 7805 problem Answered
Hello . I just make a PSP charger.
I used a 12v,450mA adapter as power source and a 7805 transistor to get 5v output.
this is the wire map: http://i247.photobucket.com/albums/gg132/chipmapple/untitled-38.jpg
When i plug it to my PSP, it's work, but the Transistor start become hotter, after 2mins the transitor is very hot...
I don't know what's wrong with it, i tried other 7805 but got same problem.
Thanks very much .!
*sorry for my bad English