For his drop-in replacement, [K.C. Lee] is using the LM3485, a switch ... for the 7805. You will need a cap on the input, but you should already be putting those in your circuit anyway, right?

Throwing a 5V regulator like the LM7805 at our projects can become habit forming, after all they’re dirt cheap and the circuit is about ... an efficient solution to use in the place of an ...

For example 7805 IC requires minimum 6.5 volts to give 5 volt output. Here are some circuit designs of IC 7805 to monitor the output voltage. 1.This is the manipulation of the Regulator IC 7805 to ...

In this schematic is presented a simple 12 Volts to 6 volts converter circuit that is built with the well-known 7805 voltage regulator or the LM309 IC. You can use 7806 as well, but this circuit comes ...