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LT1129-3.3 - Micropower Low Dropout Regulators

Download the LT1129-3.3 datasheet PDF. This datasheet also covers the LT1129-5 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®1129/LT1129-3.3/LT1129-5 are micropower low dropout regulators with shutdown.

The devices are capable of supplying 700mA of output current with a dropout voltage of 400mV at maximum output.

Key Features

  • n 400mV Dropout Voltage n 700mA Output Current n 50μA Quiescent Current n No Protection Diodes Needed n Adjustable Output from 3.8V 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 3.3μF Output Capacitor n Reverse Battery Protection n No Reverse Output Current n Thermal Limiting n Surface Mount SOT-223 and DD-Pak Packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT1129-5-Linear.pdf) that lists specifications for multiple related part numbers.

Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT1129-5 Micropower Low Dropout Regulators
LT1129 Micropower Low Dropout Regulators
LT1121 Micropower Low Dropout Regulators
LT1121-3.3 Micropower Low Dropout Regulators
LT1121-5 Micropower Low Dropout Regulators
LT1122 JFET Input Operational Amplifier
LT1124 High Speed Precision Op Amps
LT1125 High Speed Precision Op Amps
LT1126 High Speed Precision Op Amps
LT1127 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
FEATURES n 400mV Dropout Voltage n 700mA Output Current n 50μA Quiescent Current n No Protection Diodes Needed n Adjustable Output from 3.8V 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 3.3μF Output Capacitor n Reverse Battery Protection n No Reverse Output Current n Thermal Limiting n Surface Mount SOT-223 and DD-Pak Packages APPLICATIONS n Low Current Regulator n Regulator for Battery-Powered Systems n Post Regulator for Switching Supplies n 5V to 3.3V Logic Regulator LT1129/LT1129-3.3/LT1129-5 Micropower Low Dropout Regulators with Shutdown DESCRIPTION The LT®1129/LT1129-3.3/LT1129-5 are micropower low dropout regulators with shutdown.