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L4978
+Lista de MateriaisIC REG BUCK ADJUSTABLE 2A 8DIP
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FabricanteSTMicroeletrônica
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Peça do Fabricante #L4978
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Ficha Técnica L4978 DataSheet
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Pacote DIP-8
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Especificações
| Atributo | Valor |
| 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 |
Visão Geral
Description
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
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
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 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
Application
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.