LINEAR TECHNOLOGY LT1121/LT1121-3.3/LT1121-5 Manual

Update: 28 September, 2023

The LT1121/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. Other features of the LT1121/LT1121-3.3/LT1121-5 include the ability to operate with very small output capacitors. They are stable with only 0.33µF on the output while most older devices require between 1µF and 100µF for stability. Small ceramic capacitors can be used, enhancing manufacturability. Also the input may be connected to ground or a reverse voltage without reverse current flow from output to input. This makes the LT1121 series ideal for backup power situations where the output is h

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Brand: LINEAR

File format: PDF

Size: 162 KB

MD5 Checksum: 3F4B871FF411A28F33955B215E2C2E3B

Publication date: 12 April, 2012

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PDF Link: LINEAR TECHNOLOGY LT1121/LT1121-3.3/LT1121-5 Manual PDF