LT8645SIV#PBF

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LT8645SIV#PBF

+BOM

IC REG BUCK ADJUSTABLE 8A 32LQFN

365 1일 품질 보증

7*24 영업 시간 서비스 보증

90-판매 후 1일 보증

정품 보증

사양

속성 가치
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

개요

Description

The LT8645SIV#PBF is a high-efficiency, step-down switching regulator manufactured by Analog Devices. It is part of the Silent Switcher® series, designed to minimize electromagnetic interference (EMI) while maintaining high efficiency at high switching frequencies. The device features an input voltage range of 3V to 65V, making it suitable for a wide range of applications, including automotive, industrial, and telecommunications systems.
The regulator can deliver up to 8A of continuous output current, with peak efficiencies reaching over 95%. It operates at a switching frequency of up to 2.2MHz, which can be synchronized to an external clock, allowing for flexibility in noise-sensitive applications. Key features include fast transient response, low quiescent current, and thermal shutdown protection.
The LT8645SIV#PBF also boasts a compact design, with internal compensation and soft-start capabilities, simplifying the design process for engineers. Its package is a thermally enhanced 4mm x 5mm LQFN, optimizing heat dissipation and enabling compact circuit designs.

Equivalent

The LT8645SIV#PBF is a synchronous step-down regulator from Analog Devices. Equivalent products include:
1. LM43603 from Texas Instruments – A synchronous buck converter with similar features.
2. MP8770 from Monolithic Power Systems – Offers comparable performance.
3. MAX17536 from Maxim Integrated – A high-efficiency, synchronous step-down converter.
4. TPS54360 from Texas Instruments – Another alternative with similar specifications.
These alternatives generally offer comparable voltage and current specifications suitable for similar applications.

Features

The LT8645SIV#PBF is a high-efficiency, synchronous step-down regulator from Analog Devices. Key features include:
1. Input Voltage Range: It operates from 3.4V to 65V, making it suitable for a wide variety of applications.
2. Output Current: Delivers up to 8A of continuous output current.
3. Switching Frequency: Adjustable up to 2.2MHz, allowing for compact designs.
4. Efficiency: High efficiency of up to 95%, reducing power loss and heat generation.
5. Low Quiescent Current: Consumes only 2.5µA during no load conditions, ideal for battery-powered applications.
6. Silent Switcher Architecture: Minimizes electromagnetic interference (EMI) without sacrificing efficiency.
7. Fast Transient Response: Provides quick reaction to load changes.
8. Protection Features: Includes overcurrent protection, thermal shutdown, and short-circuit protection for enhanced reliability.
9. Package: Available in a thermally enhanced 4mm x 4mm QFN package.
These features make the LT8645SIV#PBF suitable for automotive, industrial, and communication applications requiring high efficiency and low EMI.

Pinout

The LT8645SIV#PBF is a high-efficiency, monolithic step-down switching regulator from Analog Devices. It comes in a 4mm x 6mm 32-lead plastic LQFN package. The device integrates a high-speed synchronous rectification topology for increased efficiency and offers a pin count of 32.
Key features and functions of the LT8645S include:
- Input Voltage Range: 3.4V to 65V, making it suitable for a variety of applications.
- Output Current: Capable of delivering up to 8A continuous output current.
- Switching Frequency: Adjustable and can be synchronized to an external clock for improved EMI performance.
- Silent Switcher® Architecture: Reduces EMI emissions significantly, facilitating compliance with EMC standards.
- Fast Transient Response: Due to its high switching frequency and control architecture.
- Low Dropout Operation: Maintains regulation with a small difference between input and output voltage.
- Integrated Power Good Indicator: Monitors the output voltage for undervoltage conditions.
The LT8645S is ideal for applications requiring high efficiency and compact design, such as automotive, industrial, and telecom power supplies.

Manufacturer

The LT8645SIV#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational company specializing in the design and manufacturing of a wide variety of semiconductor products, with a focus on analog, mixed-signal, and digital signal processing technologies. The company provides solutions for various applications and industries, including automotive, communications, consumer electronics, healthcare, and industrial markets. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices has established itself as a leader in the electronics industry, known for its innovation and high-quality products.

Application

The LT8645SIV#PBF is a high-efficiency, high-speed synchronous monolithic step-down switching regulator. It is commonly used in the following application areas:
1. Automotive Electronics: Ideal for power management in automotive systems due to its wide input voltage range and high efficiency.
2. Industrial Power Supplies: Suitable for industrial applications requiring reliable and efficient power conversion.
3. Telecommunications: Used in power supply designs for telecom infrastructure, providing stable voltage outputs.
4. Distributed Power Systems: Effective in systems where efficient power conversion is critical to overall system performance.
5. Battery-Powered Equipment: Its efficiency extends battery life in portable electronics.
These applications benefit from the LT8645SIV#PBF's fast transient response, low quiescent current, and compact footprint.

Package

The LT8645SIV#PBF is a step-down switching regulator from Analog Devices. It comes in a 4mm x 4mm 24-lead LQFN (Leadless Quad Flat Package) package with an exposed pad for improved thermal performance.

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