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LT1121-3.3 - Micropower Low Dropout Regulators

Download the LT1121-3.3 datasheet PDF. This datasheet also covers the LT1121-5 variant, as both devices belong to the same micropower low dropout regulators family and are provided as variant models within a single manufacturer datasheet.

General 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.

Key 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT1121-5-Linear.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT1121-5 Micropower Low Dropout Regulators
LT1121 Micropower Low Dropout Regulators
LT1122 JFET Input Operational Amplifier
LT1124 High Speed Precision Op Amps
LT1125 High Speed Precision Op Amps

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.