LT8641ARUDCM#WTRPBF

$2.92

Description：65V 3.5A SILENT SWITCHER
Series：LT®8641A
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:92013b080864 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：65V 3.5A SILENT SWITCHER
Series：LT®8641A
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：2.6V
Voltage - Input (Max)：65V
Voltage - Output (Min/Fixed)：0.81V
Voltage - Output (Max)：65V
Current - Output：3.5A
Frequency - Switching：200kHz ~ 3MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount, Wettable Flank
Package / Case：20-WFQFN Exposed Pad, 18 Leads
Supplier Device Package：20-QFN (3x4)
Grade：Automotive
Qualification：AEC-Q100

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LT8641ARUDCM#WTRPBF

Overview

The LT8641ARUDCM#WTRPBF is a synchronous step-down Silent Switcher regulator from Analog Devices. It features an input voltage range of 3V to 65V and delivers up to 3.5A output current. The device utilizes the Silent Switcher architecture to minimize electromagnetic interference (EMI) emissions while maintaining high efficiency at switching frequencies up to 3MHz. It includes integrated soft-start, adjustable frequency control, and thermal regulation within a compact 20-lead QFN package.

Feature Summary

Silent Switcher architecture for minimized EMI/EMC radiation
Wide 3V to 65V input voltage capability
Integrated 3.5A synchronous buck converter
Adjustable switching frequency up to 3MHz

Applications

Industrial distributed power systems
Telecommunications infrastructure
Point-of-load (POL) conversion

Procurement Notes

Verify the specific suffix 'ARUDCM' against official Analog Devices documentation to confirm temperature grade and reel packaging specifications. Ensure compatibility with required RoHS standards and check for any recent product lifecycle notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring wide input voltage ranges up to 65V and low electromagnetic interference. It is suitable for applications where space constraints necessitate a compact QFN package while demanding high efficiency and reliable performance in industrial environments.

Part Context

This part belongs to the LT8641 family of Silent Switcher regulators. It shares architectural similarities with other members like the LT8640 and LT8642 but is distinguished by its specific 65V input rating and 3.5A current capacity. The 'ARUDCM' designation indicates automotive-grade reliability and tape-and-reel packaging.