General Description

The Micrel MIC22950 is a high-efficiency 10A integrated switch, synchronous buck (step-down) regulator. The MIC22950 switching frequency is programmable from 400kHz to 2MHz, allowing the customer to optimize designing either for efficiency or for the smallest footprint. The MIC22950 achieves over 95 efficiency while still switching at 2MHz over a broad load range.

Features

• 2.6V to 5.5V supply voltage

• Fully-integrated MOSFET switches

• Adjustable output voltage option down to 0.7V

• Output load current up to 10A

• Full sequencing and tracking capability

• Power-On Reset

• Efficiency >95 across a broad load range

• Operating frequency programmable: 400kHz to 2MHz

• Ultra-fast transient response

• 100 maximum duty cycle

• Micropower shutdown

• Thermal-shutdown and current-limit protection

• Available in a 32-pin 5mm x 5mm MLF® package

• −40°C to +125°C junction temperature range

Applications

• High-power density point-of-load conversion

• Base stations, Servers and Routers

• Blu-ray players, DVD Recorders

• Computer Peripherals

• FPGAs, DSP, and low-voltage ASIC power