STMicroelectronics

L4964  

DC Switching Voltage Regulators

L4964 Description

The L4964 is a high-performance buck regulator IC designed by STMicroelectronics, specifically tailored for applications requiring adjustable output voltage and high efficiency. This regulator offers an output current capability of up to 4A, making it suitable for a wide range of power management applications. The L4964 operates over an input voltage range of 9V to 36V, providing flexibility in power supply design. It features an adjustable output voltage from 5.1V to 28V, allowing designers to optimize the power delivery for various electronic systems.

The L4964 employs a buck topology, which is known for its high efficiency and compact design. The switching frequency is set at 50kHz, ensuring minimal electromagnetic interference (EMI) while maintaining high performance. The regulator is housed in a through-hole package, making it suitable for applications where robust mechanical stability is required. Additionally, the L4964 is REACH unaffected and RoHS3 compliant, adhering to stringent environmental standards.

L4964 Features

• Adjustable Output Voltage: The L4964 provides an adjustable output voltage range from 5.1V to 28V, offering flexibility to meet various system requirements.
• High Input Voltage Range: With an input voltage range of 9V to 36V, the L4964 can accommodate a wide variety of input power sources.
• High Output Current: Capable of delivering up to 4A of output current, the L4964 is well-suited for applications requiring high power delivery.
• Buck Topology: Utilizes a buck topology for high efficiency and compact design, ensuring minimal power loss and heat generation.
• 50kHz Switching Frequency: The 50kHz switching frequency balances efficiency and EMI, making it suitable for sensitive electronic environments.
• Through-Hole Mounting: The through-hole package provides robust mechanical stability, ideal for applications with stringent physical requirements.
• Environmental Compliance: REACH unaffected and RoHS3 compliant, ensuring the L4964 meets the latest environmental regulations.
• Single Output Configuration: The L4964 features a single positive output configuration, simplifying design and reducing complexity.

L4964 Applications

The L4964 is designed for a variety of applications where high efficiency, adjustable output voltage, and robust mechanical stability are critical. Some specific use cases include:

• Industrial Equipment: Ideal for powering industrial control systems, where high reliability and efficiency are paramount.
• Telecommunications: Suitable for base stations and other telecom equipment requiring stable and efficient power delivery.
• Automotive Electronics: The wide input voltage range and high output current make the L4964 suitable for automotive applications, such as infotainment systems and electronic control units.
• Consumer Electronics: Can be used in high-power consumer devices like gaming consoles and high-end audio equipment.
• Medical Devices: Applicable in medical imaging and diagnostic equipment where stable power supply and low EMI are essential.

Conclusion of L4964

The L4964 from STMicroelectronics is a versatile and high-performance buck regulator IC, offering adjustable output voltage and high efficiency. Its wide input voltage range, high output current capability, and robust through-hole package make it suitable for a variety of demanding applications. The L4964's compliance with environmental standards and its single positive output configuration further enhance its appeal. Whether used in industrial, automotive, or consumer electronics, the L4964 provides reliable power management solutions, ensuring optimal performance and efficiency.

L4964 Documents

Download datasheets and manufacturer documentation for L4964

EOL :

Product Discontinuance Notification (PDF)      

PCN :

Bipolar products changing wafer size from 5" to 6" in Ang Mo Kio fabs (Singapore) (PDF)