Datasheet4U Logo Datasheet4U.com

LT3990-3.3 Datasheet 350mA Step-Down Regulator

Manufacturer: Linear Technology (now 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT3990_LinearTechnology.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 Floatin.

📁 Similar Datasheet

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

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LT3990-5 350mA Step-Down Regulator
LT3991-3.3 1.2A Step-Down Regulator
LT3991-5 1.2A Step-Down Regulator
LT3999 1MHz Push-Pull DC/DC Driver
LT3922 2A Synchronous Step-Up LED Driver
LT3952 60V LED Driver
LT3955 LED Converter
LT3959 Wide Input Voltage Range Boost/SEPIC/Inverting Converter
LT3971-3.3 2MHz Step-Down Regulator
LT3971-5 2MHz Step-Down Regulator