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LT3970-3.3 - 350mA Step-Down Regulator

Download the LT3970-3.3 datasheet PDF. This datasheet also covers the LT3970 variant, as both devices belong to the same 350ma step-down regulator family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT3970_LinearTechnology.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LT3970-3.42 350mA Step-Down Regulator Analog Devices
LT3971-3.3 2MHz Step-Down Regulator Linear
LT3971-5 2MHz Step-Down Regulator Linear
LT3971A Step-Down Regulator Linear
LT3971A-5 Step-Down Regulator Linear

Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT3970-5 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

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