LT3990HMSE-3.3#PBF

$6.94

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

SKU:6c997b467427 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 ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：16-MSOP-EP

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LT3990HMSE-3.3#PBF

Overview

The LT3990HMSE-3.3#PBF is a monolithic buck switching regulator from Analog Devices, designed for high-voltage applications with an input range of 4.2V to 62V. It delivers a fixed 3.3V output at up to 350mA. The device features an adjustable switching frequency and ultra-low quiescent current of 2.5µA. Packaged in a 16-lead MSOP, it operates between -40°C and +125°C.

Feature Summary

Accepts wide input voltage ranges up to 62V
Ultra-low quiescent current consumption
Adjustable switching frequency capability
Integrated synchronous rectification

Applications

Industrial control systems
Automotive electronics
Battery-powered equipment
Telecommunications infrastructure

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when ordering. Confirm the HMSE grade meets required temperature specifications. Ensure the fixed 3.3V output aligns with design requirements, as other variants offer different voltages or adjustability.

Selection Notes

Select this part for designs requiring high input voltage tolerance and low standby power. The fixed 3.3V output simplifies component selection compared to adjustable versions. Consider thermal management due to the MSOP package size when handling maximum load currents.

Part Context

This component belongs to the LT3990 family of high-voltage step-down converters. It shares core architecture with variants like LT3990IMSE-3.3 but differs in performance grades and output configurations within the broader product line.