Product Summary
The LT1121IS8 is a micropower low dropout regulator with shutdown. The LT1121IS8 is 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, 30uA operating and 16uA in shutdown, makes the LT1121IS8 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. The LT1121IS8 applications are: (1)Low Current Regulator; (2)Regulator for Battery Powered Systems; (3)Post Regulator for Switching Supplies.
Parametrics
LT1121IS8 absolute maximum ratings: (1)Output Pin Reverse Current: 10mA; (2)Adjust Pin Current: 10mA; (3)Shutdown Pin Input Voltage (Note 2): 6.5V, - 0.6V; (4)Shutdown Pin Input Current (Note 2): 20mA; (5)Storage Temperature Range: - 65℃ to 150℃; (6)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LT1121IS8 features: (1)150mA Output Current; (2)30uA Quiescent Current; (3)No Protection Diodes Needed; (4)Adjustable Output from 3.75V to 30V; (5)3.3V and 5V Fixed Output Voltages; (6)Controlled Quiescent Current in Dropout; (7)Shutdown; (8)16uA Quiescent Current in Shutdown; (9)Stable with 0.33uF Output Capacitor; (10)Reverse Battery Protection.
Diagrams
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