LT8645SEV#PBF

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LT8645SEV#PBF

IC REG BUCK ADJUSTABLE 8A 32LQFN

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365 일 보장

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사양

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

개요

Description

The LT8645SEV#PBF is a high-efficiency monolithic step-down regulator designed by Analog Devices (formerly Linear Technology). It operates from an input voltage range of 3.4V to 65V and can deliver up to 8A of continuous output current, making it suitable for a wide array of applications, including automotive, industrial, and communications systems.
Key features of the LT8645SEV#PBF include its Silent Switcher architecture, which minimizes electromagnetic interference (EMI) and improves efficiency. This architecture allows for fast transient response and low ripple, ensuring minimal output voltage deviations even during dynamic load changes. The device's high efficiency is further enhanced by its ability to operate at a 1MHz switching frequency.
Other notable features include a low dropout performance, soft-start capability, and short-circuit protection. The LT8645SEV#PBF is encapsulated in a thermally enhanced 4mm x 4mm LQFN package, facilitating effective heat dissipation and compact design.
Overall, the LT8645SEV#PBF is a versatile, efficient solution for power regulation, offering robust performance in environments requiring low noise and precise voltage regulation.

Features

The LT8645SEV#PBF is a high-efficiency, step-down (buck) switching regulator from Analog Devices. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 3.4V to 65V, making it versatile for various applications.
2. Output Current: The regulator can deliver up to 8A of continuous output current.
3. Efficiency: It boasts high efficiency, up to 95%, due to its synchronous rectification and low quiescent current design.
4. Switching Frequency: The device operates at a programmable switching frequency from 200kHz to 2.2MHz, allowing for optimization between efficiency and component size.
5. Silent Switcher Technology: This reduces electromagnetic interference (EMI) and maintains high efficiency over a wide load range.
6. Low Ripple Burst Mode: The feature ensures high efficiency at light loads while maintaining low output voltage ripple.
7. Thermal Performance: Excellent thermal performance due to its 4mm x 4mm QFN package and integrated MOSFETs.
8. Protection: It includes features like short-circuit protection, thermal shutdown, and undervoltage lockout.
These attributes make the LT8645SEV#PBF suitable for automotive, industrial, and telecom applications that require efficient power conversion with minimal EMI.

Package

The LT8645SEV#PBF is a 10-lead plastic QFN package, which stands for Quad Flat No-Lead. It is a surface-mount package known for its compact size and efficient thermal performance, commonly used in electronic components and integrated circuits.

Pinout

The LT8645SEV#PBF is a monolithic, step-down switching regulator from Analog Devices. It is highly efficient and designed to provide a compact and efficient power solution. The LT8645SEV comes in a 4mm x 7mm 24-lead plastic QFN package. It features a pin count of 24.
The main function of this regulator is to convert a higher input voltage to a lower output voltage efficiently while providing a high output current capability. The device supports fast transient response and operates with low quiescent current, making it suitable for applications requiring high efficiency over a wide range of load conditions. Essential functions include input voltage regulation, output voltage regulation, switching control, and thermal management. Additionally, it incorporates protection features like overcurrent protection and thermal shutdown to ensure reliable operation.

Manufacturer

The LT8645SEV#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company known for designing and manufacturing a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. Their products are widely used in various industries, including communications, industrial, automotive, consumer electronics, and healthcare, among others. Analog Devices provides solutions that bridge the physical and digital worlds, enabling advancements in electronic technology and innovation.

Application

The LT8645SEV#PBF is a synchronous step-down regulator designed for applications requiring high efficiency and fast transient response. Key application areas include automotive power systems, industrial power supplies, distributed power systems, and battery-operated devices. Its low quiescent current and high efficiency make it suitable for applications where power conservation is critical. Additionally, its ability to handle high input voltages and deliver precise output voltage makes it ideal for powering microprocessors, FPGAs, and ASICs.

Equivalent

The LT8645SEV#PBF is a synchronous step-down regulator by Analog Devices. Equivalent products might include:
1. TI LM61460: A 60V, 6A synchronous step-down buck converter.
2. Microchip MCP16331: A high-efficiency, low quiescent current buck regulator.
3. Maxim MAX17502: A high-efficiency, synchronous step-down DC-DC converter.
Always verify electrical specifications and package compatibility to ensure suitability for your specific application.

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