L4978

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L4978

+БОМ

IC REG BUCK ADJUSTABLE 2A 8DIP

  • ПроизводительSTМикроэлектроника

  • Мфр. Часть #L4978

  • Лист данных L4978 DataSheet

  • Пакет DIP-8

  • В наличии2936

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

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Спецификации

Атрибут Ценность
Package / Case Tube
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 8V
Voltage - Input (Max) 55V
Voltage - Output (Min/Fixed) 3.3V
Voltage - Output (Max) 50V
Current - Output 2A
Frequency - Switching 100kHz ~ 300kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Through Hole

Обзор

Description

L4978 appears to be an unspecified code or designation, and without additional context, it is difficult to provide a precise introduction. Codes like L4978 might refer to anything from product numbers, model identifiers, academic courses, or specific technical terms within certain industries. It's essential to have more context or details to tailor a specific introduction.
However, if this were an academic course, the introduction would typically outline the subject matter, objectives, and key topics covered. For instance, a course titled "Introduction to L4978" might explore a specialized area of study, providing foundational knowledge and skills related to that code or field.
If L4978 refers to a technical specification or product, an introduction would include its main features, purpose, and potential applications. For clarity, please provide more details or context about the specific area or field to which L4978 pertains for a more accurate introduction.

Equivalent

The L4978 is a voltage regulator and switching regulator IC from STMicroelectronics. Equivalent or similar products could include:
1. LM2596 - from Texas Instruments, a popular step-down voltage regulator.
2. MC34063 - from ON Semiconductor, a versatile DC-DC converter.
3. LM2678 - from Texas Instruments, offering adjustable or fixed output with a similar power range.
Always compare specifications to ensure compatibility with your specific application.

Features

The L4978 is a DC-DC converter IC designed for various power management applications. Key features typically include:
1. Input Voltage Range: It can handle a wide input voltage range, which makes it versatile for different applications.
2. Output Voltage: The output voltage is adjustable, allowing for customization based on specific requirements.
3. Efficiency: It generally offers high efficiency, minimizing power loss and thermal stress.
4. Switching Frequency: Operates at a fixed switching frequency, which helps in reducing noise and improving performance.
5. Current Capability: The L4978 can deliver a significant output current, suitable for powering numerous devices.
6. Protection Features: Includes protections such as overcurrent, thermal shutdown, and under-voltage lockout to enhance reliability.
7. Package: Available in compact packaging, which is beneficial for space-constrained designs.
8. Applications: Commonly used in automotive, industrial, and consumer electronics for voltage regulation and power conversion tasks.
These features make the L4978 suitable for various applications requiring efficient and reliable power conversion.

Pinout

The L4978 is a step-down switching voltage regulator IC. It typically comes in a 15-pin Multiwatt package. The main function of the L4978 is to convert a higher input voltage to a lower output voltage using a switching method for efficient power regulation. It can handle output currents up to 2A and operates at a fixed frequency, providing reliable voltage regulation for various applications.
The pin configuration generally includes:
1. Input voltage
2. Output voltage
3. Ground
4. Feedback for voltage regulation
5. Enabling pin for shutdown control
6. Frequency compensation
7. Current sense for overload protection
The remaining pins are usually associated with additional functionalities like soft start, synchronization, and protection features. It's essential to refer to the manufacturer's datasheet for the exact pin configuration and detailed specifications.

Manufacturer

The L4978 is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, and manufactures a wide range of electronic components and integrated circuits. The company is known for its innovation in various fields like power management, automotive, industrial, and consumer electronics. As a key player in the semiconductor industry, STMicroelectronics provides solutions for electronics applications, spanning from simple components to complex systems.

Application

The L4978 is a step-down voltage regulator often used in applications requiring efficient power conversion. Its primary application areas include:
1. Consumer Electronics: Used in devices needing stable power supply, such as laptops, tablets, and smartphones.
2. Industrial Automation: Provides reliable power management in control systems and automation equipment.
3. Automotive Systems: Utilized in onboard electronics, ensuring consistent voltage levels for infotainment and control units.
4. Telecommunications: Helps maintain stable power in networking equipment and communication devices.
5. Embedded Systems: Supports microcontrollers and other components in embedded applications with precise voltage regulation.
Its versatility in handling input voltage and providing efficient power conversion makes it suitable for diverse electronic circuits.

Package

The L4978 is a DC-DC step-down switching regulator typically available in a PowerSO-20 or other similar surface-mount package. This package type allows efficient thermal management and is suitable for compact circuit board designs.

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