DESCRIPTION
The AIC1550 is a  low-noise  pulse-width modulated (PWM) DC-DC step-down converter. It  powers logic circuits in PDAs and small wireless systems such as cellular phones, handy-terminals.

FEATURES
95% Efficiency or up
800mA Guaranteed Output Current.
Adjustable Output Voltage from 0.75V to VIN of a range from +2.5V to 6.5V.
Very Low Quiescent Current: 35µA (Typ.).
Fixed- 500KHz or Adjustable Frequency Synchronous PWM Operation.
Synchronizable external Switching Frequency up to 1MHz.
Accurate Reference: 0.75V (±2%).
100% Duty Cycle in Dropout.
Low Profile 8-Pin MSOP Package.
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APPLICATIONS
PDAs.
Digital Still Cameras.
Handy-Terminals.