The solutions are ideal for set-top boxes, gateways, routers, computing peripherals, and telecom/networking equipments.
The MIC2164 is currently available in volume quantities with pricing starting at $0.72 for 1K quantities while MIC2164-2 and MIC2164-3 are priced at $0.77 and $0.82 for 1K quantities respectively.
Micrel’s unique Hyper Speed Control(TM) architecture offers terrific benefits such as reduced BOM cost and world class transient response for cost-sensitive applications such as set-top-box, graphic cards and servers, stated John T. Lee, director of power products, Micrel. The huge advantage gained by our digitally modified hyper speed architecture is high speed, resulting in a smaller footprint and lower system-level cost for our customers.
Micrel’s new devices are constant on-time mode PWM controllers that feature wide input voltage range and are capable of driving up to 25A of load current. The MIC2164 operates at 300 kHz PWM frequency while MIC2164-2 and MIC2164-3 operate at 600 kHz and 1 MHz respectively, to allow a size reduction path. The MIC2164 Hyper Speed Control family of PWM controllers operates over a wide input supply range of 3V to 28V and also offers cycle-by-cycle current limiting for FET protection. While the UVLO circuitry ensures proper operation under power-sag conditions to prevent the MOSFETs from overheating, the Soft Start feature reduces the inrush current. It also features built-in compensation with an external ripple injection circuit. The MIC2164 Hyper Speed Control family of PWM controllers is available in a 10-pin MSOP package with a junction operating range from -40degC to +125degC.
