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