LT8646SEV#PBF

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LT8646SEV#PBF

IC REG BUCK ADJUSTABLE 8A 32LQFN

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規格

Package Tray
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3.4V
Voltage-Input(Max) 65V
Voltage-Output(Min/Fixed) 0.97V
Voltage-Output(Max) 12V
Current-Output 8A
Frequency-Switching 200kHz ~ 2.2MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 32-TFQFN Exposed Pad

概述

Description

The LT8646SEV#PBF is a high-efficiency, monolithic synchronous step-down regulator. It is designed to deliver up to 8A of continuous output current from input voltages ranging from 3.4V to 65V, making it suitable for automotive, industrial, and general-purpose applications. The device operates with a low quiescent current and features a Silent Switcher® architecture that minimizes electromagnetic interference (EMI), enabling quiet operation suitable for noise-sensitive environments.
Key features of the LT8646SEV include fast minimum on-time (as low as 40ns), which supports high step-down ratios even at high switching frequencies. The regulator also offers programmable switching frequency, spread spectrum frequency modulation, and synchronization to an external clock. It includes protection features such as short-circuit protection, thermal shutdown, and a robust 42V output transient tolerance.
The LT8646SEV is available in a thermally enhanced 4mm x 4mm LQFN package, allowing efficient thermal management. Overall, it is ideal for applications requiring high efficiency, compact size, and low noise performance.

Features

The LT8646SEV#PBF is a high-efficiency synchronous step-down regulator from Analog Devices. It features a wide input voltage range of 3.4V to 65V, making it suitable for a variety of applications. The regulator can deliver up to 8A of continuous output current and achieve efficiency as high as 94% due to its synchronous rectification. It operates with a selectable switching frequency from 200kHz to 3MHz, which allows optimization between efficiency and component size.
Key features include Burst Mode® operation for high efficiency at light loads, a low quiescent current of 2.5µA, and a fast minimum on-time of 30ns for high step-down ratios. The LT8646SEV#PBF also offers excellent transient response and low output ripple. Protection features include overvoltage, overcurrent, and thermal shutdown. It comes in a thermally enhanced 24-lead 4mm x 4mm LQFN package, which aids in heat dissipation. Typical applications for the LT8646SEV#PBF include automotive, industrial, and telecom power systems.

Package

The LT8646SEV#PBF is a step-down switching regulator in a QFN (Quad Flat No-leads) package. Specifically, it comes in a 4mm x 6mm QFN package, which is designed for efficient thermal performance and compact design applications.

Pinout

The LT8646SEV#PBF is a high-efficiency step-down regulator from Analog Devices. It comes in a 24-pin, 4mm x 4mm QFN package. The main function of the LT8646SEV#PBF is to provide a compact, efficient solution for converting a higher input voltage to a lower output voltage with minimal power loss. It features a synchronous rectification design that ensures high efficiency even at light loads. The device can deliver up to 10A of continuous output current and has a wide input voltage range. Other key features include a low dropout performance, fast transient response, and low quiescent current, making it suitable for various applications in power-sensitive electronics.

Manufacturer

The LT8646SEV#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These components are used in various industries, including communications, healthcare, automotive, industrial, and consumer electronics, to perform tasks such as data conversion, signal processing, and power management.

Application

The LT8646SEV#PBF is a synchronous step-down regulator commonly used in applications requiring efficient power conversion. Key application areas include automotive power systems, industrial power supplies, distributed power systems, and battery-powered devices. Its high efficiency, fast transient response, and low quiescent current make it suitable for powering microprocessors, FPGAs, ASICs, and other digital loads in these domains.

Equivalent

The LT8646SEV#PBF is a high-efficiency, synchronous step-down regulator from Analog Devices. Equivalent products include:
1. Microchip Technology: MCP16311
2. Texas Instruments: TPS54302
3. STMicroelectronics: L6985F
4. Maxim Integrated (now part of Analog Devices): MAX17502
5. Infineon Technologies: TLF50211
These alternatives offer similar functionality in terms of voltage regulation and efficiency, but specific parameters should be reviewed for compatibility.

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