L6926 Datasheet - STMicroelectronics

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