ROHM offers a wide lineup of general-purpose 3-pin regulators featuring low power consumption, high current capability, and high voltage resistance, making them ideal for mobile phones, automotive systems, consumer electronics, and commercial/industrial equipment.
A linear regulator, also referred to as a "three-terminal regulator" or "dropper," is a power supply long known to many designers owning to its simple circuitry and ease of use. Although some linear regulators consisted of discrete devices in the past, progress with ICs has made the configuration more simple, convenient and miniaturized, besides workable with various power supply applications. Recently, high efficiency has been a must requirement for electronic equipment, and equipment that requires large output current has mainly used a switching power supply, yet linear regulators are in strong demand virtually everywhere thanks to their simple structure, space-savings and, above all, low noise characteristics. This application note gives an overview of linear regulators.