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LT3990-3.3 Datasheet 350mA Step-Down Regulator

Manufacturer: Analog Devices

Download the LT3990-3.3 datasheet PDF. This datasheet also includes the LT3990 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (LT3990-AnalogDevices.pdf) that lists specifications for multiple related part numbers.

General Description

The LT®3990 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 62V, and consumes only 2.5µA of quiescent current.

A high efficiency switch is included on the die along with the catch diode, boost diode, and the necessary oscillator, control and logic circuitry.

Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 5mV in a typical application.

Key Features

  • n Low Ripple Burst Mode® Operation 2.5µA IQ at 12VIN to 3.3VOUT Output Ripple < 5mVP-P n Wide Input Voltage Range: 4.2V to 62V Operating n Adjustable Switching Frequency: 200kHz to 2.2MHz n Integrated Boost and Catch Diodes n 350mA Output Current n Fixed Output Voltages: 3.3V, 5V 2µA IQ at 12VIN n Accurate Programmable Undervoltage Lockout n FMEA Fault Tolerant (MSOP Package) Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin is Left Floating n Low Shut.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Linear Logo LT3990-3.3 350mA Step-Down Regulator Linear

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