DESCRIPTION
●The device is dc-dc monolithic regulator specifically designed to provide extremely high efficiency. The device has on UVLO set at 2.7V cause it is part icurarly thought for single Li-ion cell applications.
●Output voltage can be selected by an external divider down to 0.6V. Duty Cycle can saturate to 100% allowing low drop-out operation.
●FEATURES
●■ 2.7V TO 5.5V BATTERY INPUT RANGE
●■ HIGH EFFICIENCY: UP TO 95%
●■ INTERNAL SYNCHRONOUS SWITCH
●■ NO EXTERNAL SCHOTTKY REQUIRED
●■ EXTREMELY LOW QUIESCENT CURRENT
●■ 800mA MAX OUTPUT CURRENT
●■ ADJUSTABLE OUTPUT VOLTAGE FROM 0.6V
●■ LOW DROP-OUT OPERATION: UP TO 100% DUTY CYCLE
●■ SELECTABLE LOW NOISE/LOW CONSUMPTION MODE AT LIGHT LOAD
●■ LOW BATTERY INPUT
●■ LOW BATTERY OUTPUT
●■ ±1% OUTPUT VOLTAGE ACCURACY
●■ CURRENT-MODE CONTROL
●■ 600kHz SWITCHING FREQUENCY
●■ EXTERNALLY SYNCHRONIZABLE FROM 500kHz TO 1.4MHz
●■ OVP
●■ SHORT CIRCUIT PROTECTION