General Description
Micrel’s MIC2193 is a high efficiency, PWM synchronous buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows it to efficiently step down voltages in 3.3V, 5V, and 12V systems as well as 1- or 2-cell Li Ion battery powered applications.

Features
• 2.9V to 14V input voltage range
• 400kHz oscillator frequency
• PWM current mode control
• 100% maximum duty cycle
• Front edge blanking
• 4Ω output drivers
• Cycle-by-cycle current limiting
• Frequency foldback short circuit protection
• 8 lead SOIC package

Applications
• Point of load power supplies
• Distributed power systems
• Wireless Modems
• ADSL line cards
• Servers
• Step down conversion in 3.3V, 5V, and 12V systems
• 1-and 2-cell Li Ion battery operated equipment