MIC24054

MIC24054 12V, 9A High-Efficiency Buck Regulator SuperSwitcher II General Description Features The Micrel MIC24054 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive ontime control architecture. The MIC24054 operates over a supply range of 4.5V to 19V. It has an internal linear regulator which provides a regulated 5V to power the internal control circuitry. The MIC24054 operates at a constant 600kHz switching frequency in continuous conduction mode and can be used to provide up to 9A of output current. The output voltage is adjustable down to 0.8V. Micrel’s Hyper Light Load® architecture provides the same high-efficiency and ultra-fast transient response as the Hyper Speed Control architecture under medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous mode operation. The MIC24054 offers a full suite of protection features to ensure protection of the IC during faul...