LT8643SHV-2#PBF

$12.80

Description：IC REG BUCK ADJ 6A 24LQFN
Series：Silent Switcher®2
Mfr：Analog Devices Inc.
Package：Tray

SKU:5d013438479a 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 6A 24LQFN
Series：Silent Switcher®2
Mfr：Analog Devices Inc.
Package：Tray
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.4V
Voltage - Input (Max)：42V
Voltage - Output (Min/Fixed)：0.97V
Voltage - Output (Max)：42V
Current - Output：6A
Frequency - Switching：180kHz ~ 2.1MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C
Mounting Type：Surface Mount
Package / Case：24-TFQFN Exposed Pad
Supplier Device Package：24-LQFN (4x4)
Grade：-
Qualification：-

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LT8643SHV-2#PBF

Overview

The LT8643SHV-2#PBF is a synchronous step-down Silent Switcher®2 regulator from Analog Devices, housed in a 24-lead LQFN package. It supports an input voltage range of 3.4 V to 42 V and delivers up to 6 A of output current with adjustable output voltage starting at 0.97 V. The device features a low quiescent current of 750 nA and operates at switching frequencies between 200 kHz and 3 MHz. It functions within a temperature range of -40°C to +125°C.

Feature Summary

Integrates high-side and low-side power switches with adjacent compensation loops for minimal electromagnetic interference radiation.
Provides external compensation capability to allow flexible loop stability optimization for various application requirements.
Features a shutdown pin for precise control of power consumption during standby modes.

Applications

Industrial distributed power architectures
Point-of-load regulation in server infrastructure
Automotive electronics systems

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and thermal characteristics. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Check current supply availability as distribution may be limited or subject to allocation constraints.

Selection Notes

Select this component when high efficiency and low EMI are critical in space-constrained designs requiring up to 42 V input. Ensure the external compensation network is designed according to datasheet guidelines to maintain stability across the full load and line conditions.

Part Context

This part belongs to the LT8643S family of Silent Switcher regulators. It shares architectural similarities with other members like the LT8643SIV-2#PBF but differs in package configuration. The series is designed for applications demanding compact footprints and strict electromagnetic compatibility standards.