LT8642SIV#PBF

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LT8642SIV#PBF

IC REG BUCK ADJ 10A 24LQFN

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사양

Package Tray
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 2.8V
Voltage-Input(Max) 18V
Voltage-Output(Min/Fixed) 0.597V
Voltage-Output(Max) 3.3V
Current-Output 10A
Frequency-Switching 200kHz ~ 3MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 24-TFQFN Exposed Pad

개요

Description

The LT8642SIV#PBF is a high-efficiency, monolithic step-down switching regulator designed by Analog Devices, Inc. It is part of the Silent Switcher series, which is engineered to minimize electromagnetic interference (EMI) while delivering high performance. The LT8642S features a wide input voltage range of 3V to 42V, making it suitable for various applications, including automotive, industrial, and communications systems.
The device can deliver up to 10A of continuous output current and supports output voltages as low as 0.8V. It operates at a high switching frequency, up to 3MHz, allowing the use of smaller external components and enabling compact solution sizes.
Key features of the LT8642S include ultralow quiescent current, fast transient response, and a programmable switching frequency. The Silent Switcher architecture reduces EMI emissions, making it compliant with stringent EMI standards without the need for additional filtering. The device is housed in a thermally efficient, compact 4mm x 4mm QFN package, ensuring ease of integration into space-constrained designs. Overall, the LT8642SIV#PBF combines efficiency, performance, and low EMI, making it ideal for modern power management applications.

Features

The LT8642SIV#PBF is a high-efficiency, synchronous step-down regulator from Analog Devices. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 3.4V to 42V, making it suitable for automotive and industrial applications.

2. Output Current: Capable of delivering up to 10A of continuous output current.
3. Efficiency: Offers high efficiency, typically reaching up to 96% with low quiescent current, which is beneficial for battery-powered applications.
4. Switching Frequency: Programmable switching frequency ranging from 200kHz to 3MHz, allowing optimization for efficiency or component size.
5. Fast Transient Response: Utilizes a high-speed architecture that provides fast transient response.
6. Low Ripple: Features low output voltage ripple and low electromagnetic interference (EMI).
7. Package: Comes in a compact 4mm x 4mm LQFN package, ideal for space-constrained designs.
8. Protection Features: Includes overcurrent, thermal shutdown, and short-circuit protection for enhanced reliability.
9. Soft-Start and Tracking: Allows for soft-start to minimize inrush current and output voltage tracking for sequencing multiple supplies.
These features make the LT8642SIV#PBF a versatile and efficient choice for a wide range of applications.

Package

The LT8642SIV#PBF is a voltage regulator from Analog Devices, offered in a 3mm x 4mm LQFN (Leadless Quad Flat No-leads) package. This package type is designed for efficient thermal performance and space-saving in compact electronic designs.

Pinout

The LT8642SIV#PBF is a step-down (buck) switching regulator designed by Analog Devices. It comes in a 3mm x 4mm LQFN package with a total of 18 pins.
Key functions and features include:
- It operates over a wide input voltage range and provides high efficiency over a wide load range.
- The device is capable of delivering up to 10A of continuous output current.
- It features Silent Switcher® architecture, which minimizes EMI emissions.
- The LT8642SIV#PBF integrates a synchronous rectifier to improve efficiency.
- It provides a fast transient response, making it suitable for applications requiring quick load changes.
- Additional functionalities include programmable soft-start, power good indication, and thermal shutdown.
This device is suitable for various power management applications in automotive, industrial, and communication systems, where efficiency and compact size are crucial.

Manufacturer

The LT8642SIV#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 integrated circuits used in electronic equipment. The company serves various sectors, including industrial, automotive, communications, healthcare, and consumer electronics. Known for its innovation and quality, Analog Devices produces components that enable customers to create advanced electronics systems and solutions.

Application

The LT8642SIV#PBF is a high-efficiency monolithic step-down regulator ideal for applications requiring low EMI, high current, and fast transient response. Key application areas include automotive systems, industrial power supplies, telecommunications equipment, and distributed power systems. Its compact design and high efficiency make it suitable for powering microcontrollers, FPGAs, and other digital circuits where space and thermal management are critical.

Equivalent

The LT8642SIV#PBF is a synchronous step-down regulator from Analog Devices. Equivalent products from other manufacturers could include the Texas Instruments TPS54360, the Maxim Integrated MAX17502, and the ON Semiconductor NCP3170. These alternatives offer similar functionalities, like high efficiency, adjustable output, and compact design, but it's important to check specific electrical characteristics and package details to ensure compatibility with your application.

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