STMicroelectronics

L4964HT  

DC Switching Voltage Regulators

L4964HT Description

The L4964HT is a high-performance, adjustable buck regulator designed for a wide range of power management applications. Manufactured by STMicroelectronics, this IC offers a robust and efficient solution for converting high input voltages to stable output voltages with minimal power loss. The L4964HT features an adjustable output voltage range from 5.1V to 28V, making it highly versatile for various electronic systems. With a input maximum voltage of 36V and a minimum input voltage of 9V, it can accommodate a broad spectrum of power sources. The regulator is capable of delivering up to 4A of output current, ensuring reliable power delivery to demanding loads. The L4964HT operates at a switching frequency of 50kHz, which helps in maintaining high efficiency while keeping the size of external components manageable. The device is housed in a through-hole package, specifically a tube, facilitates which easy integration into printed circuit boards. Despite its obsolescence status, the L4964HT remains a valuable component due to its compliance with REACH and ROHS3 standards, ensuring environmental safety and regulatory adherence.

L4964HT Features

• Adjustable Output Voltage: The L4964HT provides an adjustable output voltage range from 5.1V to 28V, offering flexibility to meet diverse application requirements.
• Wide Input Voltage Range: With a maximum input voltage of 36V and a minimum of 9V, the regulator can handle a variety of input power sources, enhancing its applicability in different environments.
• High Output Current Capability: The regulator is designed to deliver up to 4A of output current, making it suitable for applications requiring high power delivery.
• Efficient Buck Topology: Utilizing a buck topology, the L4964HT achieves high efficiency by converting higher input voltages to lower output voltages with minimal power loss.
• 50kHz Switching Frequency: The 50kHz switching frequency ensures efficient operation while keeping the size of external components, such as inductors and capacitors, within practical limits.
• Positive Output Configuration: The positive output configuration simplifies circuit design and integration into various electronic systems.
• Through-Hole Mounting: The through-hole package type facilitates easy installation and robust mechanical stability on printed circuit boards.
• Compliance and Safety: The L4964HT is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and regulatory standards for electronic components.
• Moisture Sensitivity Level 1: With an MSL of 1 (unlimited), the device is highly resistant to moisture, enhancing its reliability in various operating conditions.

L4964HT Applications

The L4964HT is ideal for a range of applications where efficient power conversion and high output current are required. Some specific use cases include:

• Industrial Equipment: Powering motors, actuators, and other high-current devices in industrial automation systems.
• Telecommunications: Providing stable power to communication modules and base stations, ensuring reliable operation.
• Automotive Electronics: Supplying power to various electronic components in vehicles, such as infotainment systems and electronic control units.
• Consumer Electronics: Used in high-power consumer devices like gaming consoles, home theater systems, and large-screen TVs.
• Medical Devices: Powering medical equipment that requires stable and efficient power delivery, such as diagnostic machines and monitoring devices.

Conclusion of L4964HT

The L4964HT from STMicroelectronics is a versatile and efficient buck regulator that offers a wide range of technical specifications and performance benefits. Its adjustable output voltage, wide input voltage range, and high output current capability make it suitable for a variety of demanding applications. Despite being marked as obsolete, the L4964HT remains a reliable choice due to its compliance with environmental and regulatory standards. Its robust design and through-hole mounting type ensure easy integration and long-term reliability. For applications requiring efficient power conversion and high current delivery, the L4964HT stands out as a valuable component in the power management landscape.

L4964HT Documents

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