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
