DESCRIPTION
The LT®1120 is a combination micropower positive regulator and free collector comparator on a single monolithic chip. With only 40µA supply current, the LT1120 can supply over 125mA of output current. Input voltage range is from 4.5V to 36V and dropout voltage is 0.6V at 125mA. Dropout voltage decreases with lower load currents. Also included on the chip is a class B output 2.5V reference that can either source or sink current. A shutdown pin allows logic shutdown of the output.

FEATURES
■ 40µA Supply Current
■ 125mA Output Current
■ 2.5V Reference Voltage
■ Reference Output Sources 2mA and Sinks 2mA
■ Open Collector
■ Comparator Sinks 10mA
■ Logic Shutdown
■ 0.2V Dropout Voltage
■ Thermal Limiting
■ Available in 8-Lead DIP, SO and Metal Can Packages

APPLICATIONS
■ Battery Systems
■ Battery-Backup System
■ Portable Terminals
■ Portable Instruments
■ Memory Keep-Alive