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