LT1121

LT1121/LT1121-3.3/LT1121-5 Micropower Low Dropout Regulators with Shutdown FEATURES n 0.4V Dropout Voltage n 150mA Output Current n 30µA Quiescent Current n No Protection Diodes Needed n Adjustable Output from 3.75V to 30V n 3.3V and 5V Fixed Output Voltages n Controlled Quiescent Current in Dropout n Shutdown n 16µA Quiescent Current in Shutdown n Stable with 0.33µF Output Capacitor n Reverse Battery Protection n No Reverse Current with Input Low n Thermal Limiting n Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead SOT-23 and 3-Lead TO-92 Packages APPLICATIONS n Low Current Regulator n Regulator for Battery-Powered Systems n Post Regulator for Switching Supplies 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, mak...