Found in a 90s Electronic Design, this circuit is used with a 9 V adapter for powering small circuits. The maximum current is given by the 250-mW regulator.
This circuit is from the 1997 LinearTechnology Applications, operating with input voltages from 3 to 12...
We found this circuit in the April 1992 issue of Radio Electronics magazine. The circuit uses an...
This circuit is from an old documentation. Integrated circuit 723 is not common today. The power...