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LT3970-5 Datasheet 350ma Step-down Regulator

Manufacturer: Linear Technology (now Analog Devices)

Overview: LT3970 Series 40V, 350mA Step-Down Regulator with 2.5µA Quiescent Current and Integrated.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LT®3970 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 40V, 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 n 2.5µA IQ at 12VIN to 3.3VOUT n Output Ripple < 5mVP-P n Wide Input Voltage Range: 4.2V to 40V 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, 3.42V, 5V 1.8µA IQ at 12VIN n Accurate 1V Enable Pin Threshold n Low Shutdown Current: IQ = 0.7µA n Internal Sense Limits Catch Diode Current n Power Good Flag n Output Voltage: 1.21V to 25V n Internal Compensation n.

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LT3970-3.3 350mA Step-Down Regulator
LT3970 350mA Step-Down Regulator
LT3971 2MHz Step-Down Regulator
LT3972 2.4MHz Step-Down Switching Regulator
LT3975 2MHz Step-Down Switching Regulator
LT3976 2MHz Step-Down Switching Regulator
LT3905 Boost DC/DC Converter
LT3932 2A Synchronous Step-Down LED Driver
LT3954 40V LED Converter
LT3956 Constant-Current and Constant-Voltage Converter

LT3970-5 Distributor