The new solution is suitable for high power density point-of-load conversion, servers and routers, DVD recorders, computing peripherals, base stations, FPGAs, DSP and low voltage ASIC power applications.
Very high efficiency, combined with small footprint, offers terrific value in applications such as servers, Blu-ray players and base stations, stated John Lee, director of power products, Micrel. The MIC22700 is extremely easy to use, switches at a high PWM frequency and saves significant BOM cost for the designer, while setting a new standard in performance.
The MIC22700 has an ultra-high speed control loop that keeps the output voltage within regulation even under extreme transient load swings that are commonly found in FPGAs and low voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low voltage power needs, from a 3.3V or 5V power bus. A full range of sequencing and tracking options is available. The Enable/Delay pin, combined with the Power Good/POR pin allows multiple outputs to be sequenced as desired during turn-on and turn-off. The RC (Ramp Control) pin allows the device to be connected to another product in the MIC22xxx and/or the MIC68xxx family, thereby allowing the designer to maintain the output voltages within a certain deltaV on start up. The MIC22700 has thermal shutdown and current limit protection, is available in a 24-pin 4mm x 4mm MLF, and offers a junction operating range from -40degC to +125degC.
