LT3990EMSE-5#PBF

$7.58

Description：IC REG BUCK 5V 350MA 16MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:31321da7963b Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 5V 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)：5V
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

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LT3990EMSE-5#PBF

Overview

The LT3990EMSE-5#PBF is a fixed-output synchronous buck switching regulator manufactured by Analog Devices Inc. It provides a stable 5V output with a maximum current of 350mA. The device accepts an input voltage range from 4V to 60V and operates with a quiescent current of 2.2uA. It features an adjustable switching frequency between 210kHz and 2.3MHz. The component is housed in a 16-MSOP package with an exposed pad, suitable for surface mount installation across a temperature range of -40°C to +125°C.

Feature Summary

Synchronous step-down topology for high efficiency
Wide input voltage capability up to 60V
Low quiescent current consumption
Adjustable switching frequency

Applications

Industrial control systems
Automotive electronics
Portable instrumentation

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the fixed 5V output variant matches the design requirement, as other variants exist within the LT3990 family. Ensure the 16-MSOP-EP footprint is compatible with the PCB layout. Check for any recent PCN updates regarding material or marking changes.

Selection Notes

Select this part when a fixed 5V rail is required from a wide input range. The 350mA limit suits low-power applications. Consider the thermal performance of the MSOP package under load. Verify that the external component selection supports the desired switching frequency and output ripple specifications.

Part Context

This component belongs to the LT3990 series of monolithic buck regulators. It shares the core architecture with adjustable versions like the LT3990EMSE but offers a fixed 5V output. The series is designed for applications requiring high efficiency and low standby power from high-voltage sources.