The 78XX series of regulators are very handy to use. If you need, say, a 5V regulator, you grab a 7805, add a capacitor for stability, and send in enough voltage for the regulator to work with.

Based on UMC 0.18um 3.3v/1.8v Logic Process, current design of Power Regulator is to provide the 3.3v voltage output regulated from a 5v input supply. Moreover, the design is resilient against any ...

Over-voltage Protection Module to handle direct connection of voltage regulators to a 5V battery using standard 1.8V IO devices View Over-voltage Protection Module to handle direct connection of ...