LT1121 Datasheet PDF

●DESCRIPTION

●The LT®1121/LT1121-3.3/LT1121-5 are micropower low dropout regulators with shutdown. These devices are capable of supplying 150mA of output current with a dropout

●voltage of 0.4V. Designed for use in battery-powered systems, the low quiescent current, 30µA operating and 16µA in shutdown, makes them an ideal choice. The quiescent

●current is well-controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.

●FEATURES

●0.4V Dropout Voltage

●150mA Output Current

●30µA Quiescent Current

●No Protection Diodes Needed

●Adjustable Output from 3.75V to 30V

●3.3V and 5V Fixed Output Voltages

●Controlled Quiescent Current in Dropout

●Shutdown

●16µA Quiescent Current in Shutdown

●Stable with 0.33µF Output Capacitor

●Reverse Battery Protection

●No Reverse Current with Input Low

●Thermal Limiting

●Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead SOT-23 and 3-Lead TO-92 Packages

●APPLICATIONS

●Low Current Regulator

●Regulator for Battery-Powered Systems

●Post Regulator for Switching Supplies