Many of today’s portable electronics require LED-driver solutions. LED driver provide a wide range of power regulation techniques including integrated switch Buck, Boost, SEPIC, and Buck-Boost Regulators as well as Buck Hysteretic and Boost discrete MOSFET Controllers. Using LED drivers, results in energy-efficient solutions that reduce power consumption. Regardless of type, size, or power, all LEDs work best when driven with a constant current source. LEDs often support varying system voltages and forward voltages, which can further cause variations in LED brightness and color. LED drivers provide the benefit of constant current source to single LEDs or arrays of LEDs, enabling color and brightness matching over a wide temperature range. LED drivers are ideal for both parallel and series configurations with features such as built-in current matching, high efficiencies, multiple dimming interfaces, and low total component count.