The current is based on input-output differential voltage. There used to be a typical curve showing this on the data sheet, but it is a TYPICAL curve not a guaranteed spec. The 1A is what they guarantee. It does not hurt to run 1A through a 78XX regulator as long as it has an adequate heatsink. Read the data sheet, page 17 top right curve:Hi, but is the 7805 rated at 2.2A or at 1A? Because on the simulator it is marked as 5V 1A. If so, is it safe to work at maximum rating?
Picky, picky...Speaking from the nit-picking gallery, you have to have some voltage out to get 1ma minimum current, so absolutely zero volts out is not achievable.
by Duane Benson
by Jake Hertz
by Jake Hertz
by Jake Hertz