Status: In Production
The MIC24056 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture. The MIC24056 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. MIC24056 operates at a constant 600kHz switching frequency in continuous-conduction mode and can be used to provide up to 12A of output current. The output voltage is adjustable down to 0.8V.
HyperLight 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 MIC24056 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, thermal shutdown, internal soft start to reduce the inrush current, foldback current-limit and "hiccup" mode short-circuit protection. The MIC24056 includes a power good (PG) output to allow simple sequencing. The 12A Hyper Speed Control™ part, MIC24055, is also available.
The MIC24056 DC/DC synchronous buck regulator operates over an input supply range of 4.5V to 19V and provides a regulated output at up to 12A of load current. The output voltage is adjustable down to 0.8V with a typical accuracy of ±1%. The basic parameters of the MIC24056 evaluation board are a VIN supply of 5V to 19V, output voltage of 0.8V to 5V at 12A(1), and 600kHz switching frequency.
For pricing and availability, contact Microchip Local Sales.