L6925D

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 particurarly 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.The device is based on a 600kHz fixed-frequency, current mode-architecture. Low Consumption Mode operation can be selected at light load conditions, allowing switching losses to be reduced. L6925D is externally synchronizable with a clock which makes it useful in noise-sensitive applications.LBI pin can be used to have a LBO signal when the Battery voltage is lower than a preset value. Other features like, Overvoltage protection, Shortcircuit protection and Thermal Shutdown (150°C) are also present.

• 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 TO100% 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