LT3970HMS-3.3#PBF

$4.11

Description：IC REG BUCK 3.3V 350MA 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:ab6b1c1405df 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 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
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 ~ 150°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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LT3970HMS-3.3#PBF

Overview

The LT3970HMS-3.3#PBF is a synchronous buck switching regulator from Analog Devices Inc., housed in a 10-lead MSOP package. It delivers a fixed 3.3V output with a maximum current of 350mA. The device accepts an input voltage range up to 40V and features an adjustable switching frequency between 200kHz and 2.25MHz. It operates within a junction temperature range of -40°C to 125°C and consumes only 2.5µA of quiescent current.

Feature Summary

Integrates a high-side N-channel MOSFET for efficient synchronous rectification
Features low quiescent current consumption for battery-powered applications
Supports adjustable switching frequencies to optimize external component size

Applications

Industrial control systems
Portable instrumentation
Distributed power supplies

Procurement Notes

Verify the specific suffix 'HMS' corresponds to the required 10-lead MSOP package and operating temperature range. Confirm that the '#PBF' designation indicates lead-free RoHS compliance. Ensure the fixed 3.3V output matches the design requirement, as other variants offer adjustable or different fixed voltages.

Selection Notes

Select this part when a compact solution is needed for step-down conversion from higher bus voltages. The fixed 3.3V output eliminates the need for external feedback resistors. Consider the thermal performance of the MSOP package under load conditions and ensure the selected switching frequency aligns with inductor availability and EMI requirements.

Part Context

This component belongs to the LT3970 family of monolithic buck regulators designed for wide input voltage ranges. It shares core architecture with other LT3970 variants but differs in package type and output configuration. The series is characterized by its ability to maintain low standby current while supporting high peak currents.

Replacement Considerations

Direct substitutes include other LT3970 variants such as LT3970IMS#PBF or LT3970IDDB#PBF, provided the package and output voltage specifications are compatible. Verify pinout compatibility before substitution.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.