General Description

Micrel’s MIC2196 is a high efficiency PWM boost control IC housed in a SO-8 package. The MIC2196 is optimized for low input voltage applications. With its wide input voltage range of 2.9V to 14V, the MIC2196 can be used to efficiently boost voltages in 3.3V, 5V, and 12V systems, as well as 1- or 2-cell Li Ion battery powered applications. Its powerful 2Ω output driver allows the MIC2196 to drive large external MOSFETs.

Features

• 2.9V to 14V input voltage range

• >90 efficiency

• 2Ω output driver

• 400kHz oscillator frequency

• PWM current mode control

• 0.5μA micro power shutdown

• Programmable UVLO

• Front edge blanking

• Cycle-by-cycle current limiting

• Frequency foldback short-circuit protection

• 8-pin SOIC package

Applications

• Step-up conversion in telecom/datacom systems

• SLIC power supplies

• SEPIC power supplies

• Low input voltage flyback and forward converters

• Wireless modems

• Cable modems

• ADSL line cards

• Base stations

• 1-and 2-cell Li Ion battery operated equipment