L6926 Datasheet | STMicroelectronics

Features - 2 V to 5.5 V battery input range - High efficiency: up to 95% - Internal synchronous switch - No external Schottky diode required - Extremely low quiescent current - 1 µA max. shutdown supply current - 800 m A max. output current - Adjustable output voltage from 0.6 V - Low-dropout 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 k Hz switching frequency - Externally synchronized from 500 k Hz to 1.4 MHz - OVP - Short-circuit protection Applications - Battery-powered equipment - Portable instruments - Cellular phones - PDAs and handheld terminals - DSC - GPS Description The device is a DC-DC monolithic regulator specifically designed to provide high efficiency. The L6926 supply voltage can be as low as 2 V to be used 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 100% allowing low-dropout operation. The device is based on a 600 k Hz fixed frequency, current mode architecture. Low consumption mode operation can be selected at light load conditions, allowing switching losses to be reduced. The L6926 is externally synchronized by a clock, which makes it useful in noise sensitive applications. Other features like Power Good, overvoltage protection, short-circuit protection and thermal shutdown (150 °C) are also present. Table 1: Device summary Order code Package Packing TSSOP8 Tube L6926013TR TSSOP8 Tape and reel L6926Q1 VFQFPN8 Tube...