LT8641HUDC#PBF

$9.84

Description：IC REG BUCK ADJ 3.5A 20QFN
Series：Silent Switcher®1
Mfr：Analog Devices Inc.
Package：Tube

SKU:beec5de18a74 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 3.5A 20QFN
Series：Silent Switcher®1
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：65V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：64.35V
Current - Output：3.5A
Frequency - Switching：210kHz ~ 2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-WFQFN, 18 Leads, Exposed Pad
Supplier Device Package：20-QFN (3x4)
Grade：-
Qualification：-

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LT8641HUDC#PBF

Overview

The LT8641HUDC#PBF is a synchronous step-down Silent Switcher regulator from Analog Devices. It operates with an input voltage range of 3V to 65V and delivers up to 3.5A of output current. The adjustable output voltage spans from 0.8V to 64.35V. The device supports switching frequencies between 210kHz and 2MHz. It features a low quiescent current of 300µA and functions within a junction temperature range of -40°C to 125°C. The component is housed in a 20-WFQFN package with 18 leads and an exposed pad.

Feature Summary

Silent Switcher architecture designed to minimize electromagnetic interference emissions
Integrated synchronous rectification for high efficiency across load ranges
Adjustable switching frequency allows optimization for size or performance

Applications

Industrial point-of-load regulation
Automotive electronics power distribution
Telecommunications infrastructure supplies

Procurement Notes

Verify the exact suffix against manufacturer documentation, as variations may indicate different thermal grades or testing standards. Confirm RoHS compliance status through official datasheets before integration. Ensure the supplier provides valid traceability records for quality assurance purposes.

Selection Notes

Select this component when high input voltages up to 65V are required alongside compact footprint constraints. The Silent Switcher technology is suitable for noise-sensitive environments where standard regulators fail EMI requirements. Evaluate thermal management needs based on the specific PCB copper area available for the exposed pad.

Part Context

This part belongs to the LT8641 family of ultra-low EMI buck converters. It shares architectural similarities with other Silent Switcher devices but offers specific voltage and current ratings tailored for mid-power applications. The QFN-20 package facilitates surface-mount assembly in dense layouts.