LT8640IUDC#PBF

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LT8640IUDC#PBF

IC REG BUCK ADJ 5A 20QFN

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사양

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) 3.4V
Voltage - Input (Max) 42V
Voltage - Output (Min/Fixed) 0.97V
Voltage - Output (Max) 42V
Current - Output 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 LT8640

개요

Description

The LT8640IUDC#PBF is a high-performance buck converter from Analog Devices, specifically designed for efficient voltage regulation. It features a wide input voltage range of 3.8V to 60V, making it suitable for various applications, including automotive and industrial systems. The device can deliver up to 2A of output current with an adjustable output voltage down to 0.8V, facilitating flexibility in design.
Key features include low quiescent current, enabling high efficiency during light loads, and a unique design that minimizes external components, allowing for compact layouts. The LT8640 also incorporates advanced protection features such as thermal shutdown, short-circuit protection, and overvoltage protection to ensure reliability.
With its switching frequency of up to 2MHz, the LT8640 allows for smaller inductors and capacitors, further optimizing space and performance in applications like point-of-load converters. This makes it a popular choice among engineers looking for a robust, efficient power management solution.

Features

The LT8640IUDC#PBF is a high-efficiency, low-noise step-down regulator from Analog Devices. Key features include:
1. Input Voltage Range: Operates from 3.4V to 15V.
2. Output Voltage: Adjustable output from 0.8V to 10V.
3. Max Output Current: Supports up to 3A continuous output current.
4. High Efficiency: Up to 95% efficiency, reducing heat generation.
5. Silent Operation: Features a low-noise operation mode for sensitive applications.
6. Low Ripple: Minimal output ripple voltage, ideal for RF and precision applications.
7. Fast Transient Response: Excellent transient performance for dynamic loads.
8. Thermal Protection: Integrated thermal shutdown for improved reliability.
9. Compact Package: Available in a thermally enhanced 12-lead LQFN package.
10. Soft-Start Feature: Prevents input current inrush during start-up.
These features make the LT8640IUDC#PBF suitable for a variety of applications, including battery-powered devices, automotive systems, and industrial equipment.

Package

The LT8640IUDC#PBF is packaged in a 16-lead 3mm × 3mm DFN (Dual Flat No-lead) package.

Pinout

The LT8640IUDC#PBF is a high-performance step-down (buck) regulator from Analog Devices, featuring a total of 16 pins. Its primary functions include:
1. Input Voltage Range: It can operate with a wide input voltage range, suitable for various applications.
2. Output Voltage Regulation: It provides adjustable output voltage, allowing flexibility in design.
3. High Efficiency: The LT8640 is designed to deliver high efficiency, which helps in thermal management.
4. Low Output Ripple: It features low output ripple voltage, improving performance in sensitive applications.
5. Power Good Signal: It includes a Power Good output for monitoring.
6. Soft-Start Function: This helps in controlling inrush current during startup.
The pin configuration includes inputs for VIN, GND, SW, and various control and feedback pins, facilitating ease of integration into power management systems. For specific pin assignments and detailed functionality, refer to the manufacturer's datasheet.

Manufacturer

The manufacturer of the LT8640IUDC#PBF is Analog Devices, Inc. (ADI). Analog Devices is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. The company focuses on high-performance semiconductor solutions for a variety of applications, including communications, automotive, industrial, and consumer electronics. Founded in 1965, ADI is known for its innovation in signal processing technology, enabling accurate data conversion and transmission across a range of systems and devices.

Application

The LT8640IUDC#PBF is a high-efficiency step-down (buck) regulator used in various applications, including automotive, industrial, telecommunications, and consumer electronics. It is suitable for powering processors, FPGAs, and other digital circuits, as well as battery-powered devices due to its low quiescent current. Its features make it ideal for compact power supply designs requiring high performance and reliability.

Equivalent

The LT8640IUDC#PBF is a low-noise, high-efficiency buck converter. Equivalent products include the Texas Instruments TPS563201, Analog Devices ADP2302, and ON Semiconductor NCP81239. Ensure to compare specifications like input/output voltage, current ratings, and efficiency to confirm compatibility for your specific application.

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