DESCRIPTION

The AIC1620/AIC1621/AIC1622 are high efficiency step up DC-DC converter. The start-up voltage is as low as 0.8V and operate with an input voltage down to 0.7V. Consuming only 20mA of quiescent current. These devices offer a built-in synchronous rectifier that reduces size and cost by eliminating the need for an external Schottky diode and improves overall efficiency by minimizing losses.

FEATURES

• High Efficiency 93 (VIN=2.4V, VOUT=3.3V, IOUT=200mA).

• 20mA Quiescent Supply Current.

• Power-Saving Shutdown Mode (0.1mA typical).

• Internal Synchronous Rectifier ( no external diode )

• Selectable Current Limit for Reduced Ripple ( AIC1622 ).

• Low Noise , Anti-Ringing Feature ( AIC1622 )

• On-Chip Low Battery Detector.

• Low Battery Hysteresis

APPLICATIONS

• Palmtop & Notebook Computers.

• PDAs

• Wireless Phones

• Pocket Organizers.

• Cameras.

• 1 to 2-Cell Hand-Held Devices