I'm working on a project that will run off arduino and also needs a 9v line(guitar pedal circuit). I have a 7805 for the atmega328 so I figured I can just use a 7809 for the pedal line. Additionally it seems most logical to run them both off a 12v wall wart. But all the 7809's I'm finding says primary input voltage of 15v. Is that a problem or can I still use 12v?
Also whats the difference between Low Drop Out and Linear if they both claim a drop out of 2v?
Also whats the difference between Low Drop Out and Linear if they both claim a drop out of 2v?