L6925 Datasheet PDF - ST Microelectronics

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