General Description

Micrel’s MIC2186 is a high efficiency boost PWM control IC. With its wide input voltage range of 2.9V to 14V, the MIC2186 can be used to efficiently boost voltages in 1- or 2-cell Li Ion battery powered applications, as well as to boost voltages in fixed 3.3V, 5V, or 12V systems. Its powerful 1.6Ω output driver allows the MIC2186 to supply large output currents with the selection of proper external MOSFETs.

Features

• Input voltage range: 2.9V to 14V

• 1.6Ω output driver

• Oscillator frequency of 100kHz/200kHz/400kHz

• Frequency sync to 600kHz

• Front edge blanking

• PWM Current Mode Control

• Selectable light load SKIP mode

• 600µA quiescent current (SKIP-Mode)

• 0.5µA shutdown current

• Cycle-by-Cycle current limiting

• Frequency foldback protection

• Adjustable under-voltage lockout

• Precision 1.245V reference output

• 16 pin SOIC and QSOP package options

• Selectable 50 maximum duty cycle for flyback applications

Applications

• DC power distribution systems

• Wireless Modems

• ADSL line cards

• SLIC power supplies

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