The MIC4680-5.0YM is a 1A 200kHz Buck Regulator with an easy-to-use fixed or adjustable output voltage step-down (buck) switch-mode voltage regulator. The SuperSwitcher™ regulator is available in 3.3 and 5V fixed output versions or adjustable output down to 1.25V. This has an input voltage range of 4 to 34V with excellent line, load and transient response. The regulator performs cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions. In shutdown mode, the regulator draws less than 2µA of standby current.