LT3970EDDB-3.3#TRMPBF

$7.00

Description：IC REG BUCK 3.3V 350MA 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:acbadaf5202f Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 3.3V 350MA 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4.2V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
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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LT3970EDDB-3.3#TRMPBF

Overview

The LT3970EDDB-3.3#TRMPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc., housed in a 10-lead DFN package. It provides a fixed 3.3V output with a maximum current of 350mA. The device supports an input voltage range up to 40V and features an adjustable switching frequency from 200kHz to 2.2MHz. Quiescent current is specified at 1.8µA, and it operates within a temperature range of -40°C to +125°C.

Feature Summary

Integrated high-voltage synchronous switch capable of handling wide input voltage ranges
Adjustable switching frequency allows optimization for efficiency or component size
Ultra-low quiescent current consumption extends battery life in standby modes

Applications

Battery-powered portable equipment requiring low standby current
Industrial systems with wide input voltage variations
Embedded control circuits needing stable 3.3V regulation

Procurement Notes

Verify the specific suffix 'EDDB' against official Analog Devices documentation to confirm the exact operating temperature grade and package variant. Ensure compatibility with your PCB footprint for the 10-DFN configuration. Cross-reference the datasheet revision date to validate electrical specifications before finalizing procurement.

Selection Notes

Select this component when a fixed 3.3V output is required alongside high input voltage tolerance up to 40V. The adjustable frequency feature permits trade-offs between external inductor size and electromagnetic interference. Consider the 350mA output limit and thermal dissipation requirements inherent to the DFN package for your specific load profile.

Part Context

This part belongs to the LT3970 family of high-efficiency step-down converters designed for applications demanding low noise and high power density. The series integrates a 40V switch and offers flexible frequency adjustment. The EDDB designation indicates a specific industrial temperature grade and surface-mount packaging suitable for automated assembly processes.