LT8641EUDC#TRPBF

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LT8641EUDC#TRPBF

IC REG BUCK ADJ 3.5A 20QFN

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Thông số kỹ thuật

Series Silent Switcher®1
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 3V
Voltage - Input (Max) 65V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 64.35V
Current - Output 3.5A
Frequency - Switching 210kHz ~ 2MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 20-WFQFN, 18 Leads, Exposed Pad
Supplier Device Package 20-QFN (3x4)
Base Product Number LT8641

Tổng quan

Description

The LT8641EUDC#TRPBF is a high-performance, step-down DC/DC converter from Analog Devices, designed for applications requiring high efficiency and compact size. It features a wide input voltage range, typically from 3.4V to 65V, making it suitable for various power supply designs. The device can deliver up to 2A of output current while achieving efficiency levels exceeding 90%, minimizing heat generation and enhancing overall performance.
The LT8641 employs a unique design with a silent switcher architecture, which allows for low electromagnetic interference (EMI) during operation. It also includes features such as soft-start, frequency synchronization, and adjustable output voltage, providing flexibility for different applications. The package is compact, making it ideal for space-constrained environments.
Key applications include industrial automation, automotive systems, and battery-powered devices. Overall, the LT8641EUDC#TRPBF is an excellent choice for designers seeking a reliable, efficient, and versatile DC/DC converter.

Features

The LT8641EUDC#TRPBF is a high-performance, ultra-low noise, synchronous step-down regulator from Analog Devices. Key features include:
1. Input Voltage Range: Operates from 3.0V to 15V, making it suitable for various applications.
2. Output Current: Delivers up to 2A with excellent load regulation.
3. Low Quiescent Current: Features a low quiescent current of only 14µA, enhancing efficiency in battery-powered applications.
4. High Efficiency: Achieves up to 95% efficiency, minimizing heat generation.
5. Output Voltage Range: Adjustable output voltage from 0.8V to 5V, providing flexibility for different applications.
6. Silent Switcher Technology: Reduces EMI and improves performance in sensitive environments.
7. Built-in Protection: Includes features like short-circuit protection, thermal shutdown, and overvoltage protection.
8. Compact Package: Offered in a 3mm x 2mm DFN package, ideal for space-constrained designs.
These features make the LT8641EUDC#TRPBF suitable for various applications, including portable devices, automotive, and industrial systems.

Package

The LT8641EUDC#TRPBF is packaged in a 16-lead LFCSP (Lead Frame Chip Scale Package) with a dimension of 3mm x 3mm. This package type is designed for efficient thermal performance and space-saving in circuit designs.

Pinout

The LT8641EUDC#TRPBF is a high-performance step-down (buck) regulator from Analog Devices. It features a total of 16 pins. Key functions of these pins include:
1. VIN: Input voltage supply.
2. SW: Switch node for inductor connection.
3. GND: Ground reference.
4. VOUT: Output voltage.
5. COMP: Compensation point for stability.
6. FB: Feedback voltage input for regulation.
7. RUN: Enable pin to turn the regulator on/off.
8. SS: Soft-start pin to control start-up time.
9. VC: Control voltage for the internal loop.
10. ISEN+ / ISEN-: Current sense inputs for overcurrent protection.
11. LATCH: Latch pin for fault protection.
12. PG: Power good output.
13. CSN: Current sense negative input.
14. CS+: Current sense positive input.
Other pins manage frequency setting, synchronization, and features like thermal shutdown. The device is designed for high efficiency and low noise operation in applications requiring stable power delivery.

Manufacturer

The manufacturer of the LT8641EUDC#TRPBF is Analog Devices, Inc. (ADI). Analog Devices is a global leader in the design and manufacture of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company's products are widely used in various applications, including communications, industrial automation, automotive, and consumer electronics. With a strong emphasis on innovation and quality, Analog Devices specializes in providing solutions that enable advanced functionality in electronic systems. The LT8641 is a specific model that falls within their power management ICs, offering features such as high efficiency and low noise for voltage regulation applications.

Application

The LT8641EUDC#TRPBF is a high-performance step-down (buck) regulator designed for applications requiring high efficiency and low noise. Common application areas include power management for microcontrollers, FPGAs, and DSPs; automotive systems; industrial equipment; telecommunications; and portable devices. Its ability to operate from a wide input voltage range and deliver high output current makes it suitable for demanding environments.

Equivalent

The LT8641EUDC#TRPBF is a step-down regulator from Analog Devices. Equivalent products include the Texas Instruments TPS563201, ON Semiconductor NCP81239, and Maxim Integrated MAX17505. These alternatives offer similar voltage regulation features, efficiency, and output current ratings, making them suitable replacements depending on specific application requirements. Always verify electrical specifications to ensure compatibility.

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