LT3970IMS#PBF

$7.70

Description：IC REG BUCK ADJ 350MA 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:4864706a4048 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 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
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-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package：10-MSOP

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LT3970IMS#PBF

Overview

The LT3970IMS#PBF is a monolithic buck switching regulator from Analog Devices, housed in a 10-lead MSOP package. It accepts an input voltage range of 4.2V to 40V and delivers up to 350mA output current. The device features adjustable switching frequencies between 200kHz and 2.2MHz, allowing optimization for efficiency or component size. Quiescent current is specified at 1.8µA during operation and 1.7µA in shutdown mode. Output voltage is adjustable from 1.21V to 25V with a single external resistor divider. Operating temperature range spans from -40°C to +125°C.

Feature Summary

Integrated high-side MOSFET eliminates the need for external Schottky diodes
Adjustable switching frequency allows trade-off between efficiency and passive component size
Low quiescent current supports battery-powered applications
Internal soft-start limits inrush current during startup

Applications

Battery-powered portable equipment
Industrial control systems
Automotive electronics
Communication infrastructure

Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm the IMS package variant matches your PCB footprint requirements. Check current availability status as supply may be limited. Ensure input voltage ranges align with your system design before procurement.

Selection Notes

Select this part for designs requiring wide input voltage tolerance and low standby power. Consider the fixed-frequency option if precise timing synchronization is not required. Evaluate thermal performance based on ambient conditions and load current. Verify that the 350mA output capability meets downstream circuit demands.

Part Context

This component belongs to the LT3970 family of step-down regulators designed for high-efficiency power conversion. It shares architectural similarities with other LT397x variants but differs in package type and specific electrical characteristics. The MSOP form factor provides a compact solution for space-constrained designs compared to larger packages.