LT3970IDDB#TRMPBF

$7.58

Description：IC REG BUCK ADJ 350MA 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:ef8994c9ad2b Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 350MA 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4.2V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.21V
Voltage - Output (Max)：25V
Current - Output：350mA
Frequency - Switching：200kHz ~ 2.25MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x2)

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LT3970IDDB#TRMPBF

Overview

The LT3970IDDB#TRMPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 4.2V to 40V and delivers a fixed output voltage of 3.3V at up to 350mA. The device features an adjustable switching frequency from 200kHz to 2.2MHz and consumes only 1.8µA of quiescent current. It utilizes a DFN-10 surface-mount package and supports operation temperatures from -40°C to +125°C.

Feature Summary

Integrates a high-voltage switch capable of handling input voltages up to 40V
Features adjustable switching frequency for optimization of efficiency and component size
Includes internal catch diode to reduce external component count

Applications

Battery-powered systems requiring low quiescent current
Industrial control circuits
Automotive electronics

Procurement Notes

Verify the specific suffix #TRMPBF against the manufacturer's official datasheet to confirm tape-and-reel packaging and RoHS compliance status. Ensure the DFN-10 footprint matches your PCB layout requirements. Cross-reference the part number with Analog Devices documentation to validate availability and lead times through authorized distributors.

Selection Notes

Select this component when a wide input voltage range up to 40V is required alongside low standby power consumption. The adjustable frequency allows designers to optimize the trade-off between efficiency and passive component size. Verify that the 350mA output current meets the load requirements and that the thermal performance of the DFN-10 package is sufficient for the application environment.

Part Context

This part belongs to the LT3970 family of step-down regulators designed for high-voltage, low-power applications. It shares core architecture with other variants in the series but differs in package type and output configuration. The IDDB suffix indicates a specific industrial temperature grade and DFN-10 package format.