L4960

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L4960

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IC REG BUCK ADJ 2.5A 7HEPTAWATT

  • FabricanteSTMicroeletrônica

  • Peça do Fabricante #L4960

  • Em Estoque2124

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Especificações

Atributo Valor
Part Status Obsolete
Base Product Number L4960
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 9V
Voltage - Input (Max) 46V
Voltage - Output (Min/Fixed) 5.1V
Voltage - Output (Max) 40V
Current - Output 2.5A
Frequency - Switching 100kHz ~ 150kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Through Hole
Package Heptawatt-7 (Vertical, Bent and Staggered Leads)
Supplier Device Package 7-HEPTAWATT
Packaging Tube

Visão Geral

Description

"L4960" could refer to a variety of topics across different fields, so it's important to clarify the context. However, a common reference is the course "L4960" at Columbia Law School, which typically involves advanced legal studies. This course might cover specialized areas of law, current legal challenges, or innovative legal practices. It often involves critical analysis, discussion of case studies, and engagement with contemporary legal issues, preparing students for complex legal environments. Participants are expected to engage deeply with the material, contribute to discussions, and possibly complete a major research project or paper. The course aims to enhance analytical thinking, legal research skills, and understanding of nuanced legal matters. If "L4960" refers to something else, such as a product code, model number, or another specific reference, please provide more details for accurate information.

Equivalent

The L4960 is a step-down voltage regulator. Equivalent products include:
1. LM2576/LM2596 from Texas Instruments
2. MC34063A from ON Semiconductor
3. LM2675 from Texas Instruments
4. L4970 from STMicroelectronics
These alternatives provide similar functionalities and can be used for various applications requiring voltage regulation. Always consult the datasheets to ensure compatibility with your specific requirements.

Features

The L4960 is a monolithic integrated switching regulator from STMicroelectronics, designed for step-down voltage regulation. Key features include:
1. Input Voltage Range: 9V to 46V, providing flexibility for various applications.
2. Output Current: Capable of delivering up to 2.5A, which is suitable for medium power applications.
3. Adjustable Output Voltage: The output voltage can be set between 5.1V and 40V using external resistors.
4. Efficiency: High efficiency due to switching regulation, reducing power loss and heat generation.
5. Built-in Protection: Features like current limiting, thermal shutdown, and overvoltage protection enhance reliability.
6. Fixed Frequency Operation: Operates at a fixed switching frequency of 150 kHz, suitable for many applications.
7. Soft Start: Gradually increases the output voltage to prevent inrush current, protecting connected components.
8. Package: Available in a Multiwatt15 package, facilitating easy installation and thermal management.
9. Applications: Ideal for automotive, industrial, and consumer electronics requiring efficient power conversion.
These features make the L4960 a versatile and reliable choice for step-down voltage regulation in various electronic systems.

Pinout

The L4960 is a monolithic power switching regulator that is designed for a wide range of DC-DC conversion applications. It comes in a 15-pin multiwatt package. The primary functions and pin configuration of the L4960 include:
1. Input Voltage Pin - Connects the input supply voltage.
2. Output Voltage Pin - Provides the regulated output voltage.
3. Ground Pin - Common ground connection.
4. Feedback Pin - Used for voltage regulation feedback.
5. Compensation Pin - For phase compensation of the internal error amplifier.
6. Frequency Compensation Pin - Adjusts the switching frequency.
7. Current Sense Pin - Monitors output current for protection.
8. Synchronization Pin - Allows synchronization with external systems.
9. Inhibit Pin - Disables the device when needed.
10. Soft Start Pin - Gradually ramps up voltage to prevent inrush current.
11. Error Amplifier Output Pin - Outputs from the internal error amplifier.
12. Boost Pin - For boosting the voltage of the internal power switch.
13. Power Supply Pin - Powers the internal circuitry.
14. Reference Voltage Pin - Provides a reference voltage output.
15. Thermal Shutdown Pin - Connects to the thermal protection circuitry.
The L4960 is highly versatile, making it suitable for applications in industrial, automotive, and consumer electronics where efficient voltage regulation is required.

Manufacturer

The L4960 is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer, known for designing and producing a wide range of products for various electronic applications. The company operates in sectors such as industrial, automotive, personal electronics, and communications equipment. With a strong focus on innovation and technology, STMicroelectronics develops integrated circuits, discrete semiconductors, and other electronic components, serving customers across the globe.

Application

The L4960 is a voltage regulator IC commonly used in power management applications. It is designed for use in various electronic devices to provide stable voltage regulation. Key application areas include:
1. Automotive Electronics: Used in car audio systems, dashboard electronics, and on-board computers.
2. Industrial Control Systems: Provides stable power for PLCs and sensors.
3. Consumer Electronics: Powers devices such as TVs, gaming consoles, and home appliances.
4. Telecommunications: Ensures consistent power supply for network equipment.
5. Computing: Used in power supplies for microcontrollers and other digital circuits.
The L4960's efficiency and reliability make it suitable for applications requiring precise voltage regulation.

Package

The L4960 is typically available in a multi-watt package, often specifically a Multiwatt-15 package. This type of package is designed to accommodate power-integrated circuits, offering efficient heat dissipation and accommodating the pin configuration needed for its application in voltage regulation.

Frequently Asked Questions


Q: What is the maximum input voltage for the L4960 step-down regulator?
A: The L4960 can accept a maximum input voltage of 46V, making it suitable for 24V and 48V industrial bus systems.


Q: Can the L4960 output voltage be adjusted below 5.1V?
A: No, the minimum fixed output voltage is 5.1V. The adjustable range starts from 5.1V up to a maximum of 40V.


Q: What is the maximum output current this buck converter can deliver?
A: The L4960 provides a continuous output current of up to 2.5A, suitable for medium-power applications.


Q: Does the L4960 support synchronous rectification for higher efficiency?
A: No, it uses a non-synchronous (diode-based) topology, which is typical for its generation and output power level.


Q: What is the switching frequency range of the L4960?
A: The switching frequency is set between 100kHz and 150kHz, balancing efficiency and external component size.


Q: Is this regulator suitable for high-temperature operating environments?
A: Yes, its operating junction temperature range is -40°C to 150°C, suitable for industrial and automotive environments.


Q: What package type is available for this part?
A: It comes in a through-hole Heptawatt-7 package (7-HEPTAWATT) with vertical, bent, and staggered leads, ideal for thermal performance on PCB or heatsink mounting.


Q: Can the output voltage be easily adjusted above 40V?
A: No, the maximum output voltage is limited to 40V, which is below the minimum input voltage to maintain proper dropout and regulation.


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