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Description

The device is dc-dc monolithic regulator specifically designed to provide extremely high efficiency.

L6926 supply voltage can be as low as 2V allowing its use in single Li-ion cell supplied 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.

General features

■ 2V to 5.5V battery input range

■ High efficiency: up to 95

■ Internal synchronous switch

■ No external schottky required

■ Extremely low quiescent current

■ 1mA max shutdown supply 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

■ Power good signal

■ ±1 output voltage accuracy

■ Current-mode control

■ 600kHz switching frequency

■ Externally synchronizable from 500kHz to 1.4MHz

■ OVP

■ Short circuit protection

Applications

■ Battery-powered equipments

■ Portable instruments

■ Cellular phones

■ PDAs and hand held terminals

■ DSC

■ GPS