LT3990IMSE-3.3#PBF

$8.18

Description：IC REG BUCK 3.3V 350MA 16MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:9e6f898aceb9 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 16MSOP
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)：62V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：350mA
Frequency - Switching：210kHz ~ 2.3MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：16-MSOP-EP
Grade：-
Qualification：-

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LT3990IMSE-3.3#PBF

Overview

The LT3990IMSE-3.3#PBF is a monolithic synchronous buck switching regulator manufactured by Analog Devices Inc., housed in a 16-lead MSOP package. It delivers a fixed 3.3V output with a maximum current of 350mA. The device accepts an input voltage range from 4.2V to 62V and operates at a switch frequency of 2MHz. Quiescent current is specified at 2.5µA, with shutdown current at 1.7µA. It functions within a temperature range of -40°C to +125°C.

Feature Summary

Synchronous step-down topology for high efficiency
Wide input voltage capability up to 62V
Low quiescent current consumption
Adjustable switching frequency

Applications

Industrial control systems
Automotive electronics
Telecommunications infrastructure
Portable instrumentation

Procurement Notes

Verify the suffix #PBF indicates lead-free RoHS compliance. Confirm the IMSE designation corresponds to the industrial temperature grade (-40°C to +125°C) and MSOP-16 package. Ensure the -3.3 suffix matches the required 3.3V fixed output voltage. Cross-reference the manufacturer part number with official Analog Devices documentation to validate availability and specifications.

Selection Notes

Select this component when a fixed 3.3V output is required from a wide input voltage range up to 62V. It is suitable for applications demanding low standby power due to its microampere quiescent current. The 350mA output current rating defines the load capacity. Consider the MSOP-16 package size for space-constrained designs requiring industrial temperature operation.

Part Context

This part belongs to the LT3990 family of synchronous buck regulators. The family is characterized by high input voltage tolerance and low operating current. Variants differ primarily by output voltage settings and thermal grades. The IMSE variant specifically denotes the industrial temperature range and MSOP packaging format within this product line.