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