This circuit is a small +5V power supply, which is useful when experimenting with digital electronics. Small inexpensive wall transformers with variable output voltage are available from any ...

The current drain of the regulator is minute compared with that of, say, a 78L05: at an input voltage of 9 V and open-circuit output, it is just under 50 µA. The circuit consists of a straightforward ...

The present IP is a voltage regulator to generate 2.5v power for on chip circuits. Normally, its power supply is 4.5v~5.5v. The generated power voltag ...