LT8643SIV#TRPBF

$6.40

Description：IC REG BUCK ADJ 6A 24LQFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:3413cacf8dd1 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：-
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)：3V
Voltage - Input (Max)：42V
Voltage - Output (Min/Fixed)：0.97V
Voltage - Output (Max)：42V
Current - Output：6A
Frequency - Switching：200kHz ~ 3MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：24-TFQFN Exposed Pad
Supplier Device Package：24-LQFN (4x4)
Grade：Automotive
Qualification：AEC-Q100

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LT8643SIV#TRPBF

Overview

The LT8643SIV#TRPBF is a synchronous step-down DC/DC converter from Analog Devices, part of the Silent Switcher 2 family. It supports an input voltage range of 3.4 V to 42 V and delivers up to 6 A output current. The device features an adjustable switching frequency between 200 kHz and 3 MHz. It operates within a temperature range of -40°C to +125°C and utilizes a 24-lead LQFN package with exposed paddle for thermal management.

Feature Summary

Integrates Silent Switcher 2 architecture for ultra-low EMI radiation without external filters
Provides high efficiency across wide load and line conditions via synchronous rectification
Features adjustable switching frequency to optimize design trade-offs between size and performance

Applications

Automotive infotainment and body electronics systems
Industrial control and automation power distribution
Point-of-load regulation in telecommunications infrastructure

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging configuration distinct from tray variants. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to assembly planning. Ensure ordering documentation matches the exact manufacturer part number to avoid substitution errors during procurement validation.

Selection Notes

Select this component when input voltages reach 42 V and continuous currents near 6 A are required. The Silent Switcher 2 technology is essential for applications with strict conducted and radiated EMI limits. Consider the exposed paddle thermal pad requirements for adequate heat dissipation in dense PCB layouts.

Part Context

This regulator belongs to the LT8643S series, designed for high-performance buck conversion. It shares architectural similarities with the LT8640S but offers higher current capability. The series targets demanding environments requiring robust power management with minimal electromagnetic interference generation.