Description
The device is DC-DC monolithic regulator specifically designed to provide extremely high efficiency. L6926 supply voltage can be as low as 2 V allowing its use in single Li-ion cell supplied applications. Output voltage can be selected by an external divider down to 0.6 V. Duty cycle can saturate to 100% allowing low drop-out operation. The device is based on a 600 kHz fixed frequency, current mode-architecture.

FEATUREs
■ 2 V to 5.5 V battery input range
■ High efficiency: up to 95%
■ Internal synchronous switch
■ No external Schottky required
■ Extremely low quiescent current
■ 1 mA max shutdown supply current
■ 800 mA max output current
■ Adjustable output voltage from 0.6 V
■ 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
■ 600 kHz switching frequency
■ Externally synchronizable from 500 kHz to 1.4 MHz
■ OVP
■ Short circuit protection

APPLICATIONs
■ Battery-powered equipment
■ Portable instruments
■ Cellular phones
■ PDAs and hand held terminals
■ DSC
■ GPS