LT8646SEV#PBF

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LT8646SEV#PBF

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IC REG BUCK ADJUSTABLE 8A 32LQFN

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Thông số kỹ thuật

thuộc tính Giá trị
Package / Case Tray
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 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
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount

Tổng quan

Description

The LT8646SEV#PBF is a high-efficiency, high-speed synchronous monolithic step-down switching regulator from Analog Devices. It is designed to deliver up to 8A of continuous output current with input voltages ranging from 3V to 42V, making it suitable for a wide range of applications, including automotive and industrial systems.
Key features of the LT8646SEV#PBF include its silent switcher architecture, which minimizes EMI emissions, and its fast minimum on-time of 30ns, allowing for high step-down ratios even at high switching frequencies. The device operates with a fixed frequency of 400kHz to 3MHz, which can be synchronized to an external clock for noise-sensitive applications.
The regulator also offers low quiescent current, making it efficient in low-power modes. Additional features include soft-start capability, power-good flag, and thermal shutdown for robust performance. Its compact 4mm x 4mm QFN package and high efficiency make it ideal for space-constrained and power-sensitive designs.

Equivalent

The LT8646SEV#PBF is a high-efficiency, synchronous step-down regulator. Equivalent products include:
1. Texas Instruments TPS54360 – A 60V, 3.5A step-down converter.
2. Analog Devices ADP2370 – A 15V, 1.2A step-down regulator.
3. ON Semiconductor NCP45520 – A low-voltage, high-efficiency step-down converter.
These alternatives may vary in features such as voltage ratings and load current, so it's essential to check detailed specifications for compatibility.

Features

The LT8646SEV#PBF is a high-efficiency, high-speed synchronous step-down switching regulator designed by Analog Devices. Here are its key features:
1. Input Voltage Range: Operates from 3.4V to 65V, making it suitable for automotive and industrial applications.
2. Output Current: Delivers up to 8A continuous output current.
3. Switching Frequency: Adjustable switching frequency from 200kHz to 3MHz, allowing for optimization between efficiency and component size.
4. Low Quiescent Current: Features ultralow quiescent current, making it efficient in standby mode.
5. Silent Switcher Architecture: Minimizes electromagnetic interference (EMI), promoting low-noise operation.
6. Fast Transient Response: Ensures rapid reaction to changes in load conditions.
7. Thermal Performance: Offers excellent thermal performance, supporting reliable operation under varying conditions.
8. Protection Features: Includes overcurrent protection, overvoltage protection, and thermal shutdown for enhanced safety.
9. Compact Package: Comes in a 4mm x 5mm QFN package, allowing for space-saving designs.
These features make the LT8646SEV#PBF suitable for a wide range of power management applications requiring high efficiency and low noise.

Pinout

The LT8646SEV#PBF is a 42V, 10A synchronous step-down regulator manufactured by Analog Devices. It comes in a compact 3mm x 4mm 24-lead MSE package. The device offers high efficiency at high frequencies and features a fast minimum on-time of 30ns, which suits it for high-frequency or high step-down ratio applications.
Key functions include synchronous rectification, which improves efficiency, a wide input voltage range of 3.4V to 42V, and the ability to deliver up to 10A of continuous output current. It also features a low quiescent current, making it suitable for battery-powered applications. The LT8646SEV#PBF includes additional functions like adjustable and synchronizable switching frequency, a power good flag, internal compensation, and a soft-start capability to minimize inrush current during startup.
For more detailed and specific pin functions and descriptions, refer to the official datasheet provided by Analog Devices.

Manufacturer

The LT8646SEV#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. These components are used in a wide range of electronic equipment, including industrial, automotive, communication, and consumer electronics. The company is known for its innovation in the analog technology field and offers a wide range of products that include amplifiers, data converters, power management devices, sensors, and more.

Application

The LT8646SEV#PBF is a high-efficiency, high-speed synchronous step-down switching regulator. Its application areas include automotive power systems, industrial power supplies, distributed power systems, and communication infrastructure. It is suitable for situations requiring a compact solution with high efficiency and fast transient response. The device's wide input voltage range makes it ideal for battery-powered systems, while its low quiescent current is advantageous for extending battery life in portable applications. Additionally, its ability to deliver high output currents with low heat generation makes it useful in applications where thermal constraints are critical.

Package

The LT8646SEV#PBF is a step-down regulator typically provided in a 24-pin, 4mm x 4mm QFN (Quad Flat No-Lead) package.

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