STMicroelectronics

L4972A

L4972A Description

The L4972A is a high-performance, adjustable output, DC switching voltage regulator manufactured by STMicroelectronics. This through-hole mounted IC features a buck topology and is designed to provide a stable and efficient power supply solution for various electronic devices. With a wide input voltage range of 15V to 50V and an output voltage range of 5.1V to 40V, the L4972A is capable of delivering up to 2A of continuous output current. Its adjustable output feature allows for precise voltage regulation, making it suitable for a wide range of applications.

L4972A Features

• Adjustable Output Voltage: The L4972A offers an adjustable output voltage range from 5.1V to 40V, providing flexibility in power supply design.
• High Output Current: Capable of delivering up to 2A of continuous output current, making it suitable for applications requiring high power.
• Wide Input Voltage Range: Operates with an input voltage range of 15V to 50V, ensuring compatibility with various power sources.
• Buck Topology: Utilizes a buck topology for efficient power conversion and regulation.
• 100kHz to 200kHz Switching Frequency: Offers a high switching frequency range for improved performance and reduced component size.
• Single Output Configuration: Features a single positive output, simplifying the design process.
• RoHS3 Compliant: Meets the RoHS3 environmental compliance standards, ensuring eco-friendly manufacturing processes.
• REACH Unaffected: Compliant with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulations, ensuring safe use of materials.
• Moisture Sensitivity Level (MSL) 1: Indicates unlimited storage time before reflow soldering, reducing the risk of moisture-related issues.

L4972A Applications

The L4972A is ideal for various applications where a stable and efficient power supply is required. Some specific use cases include:

1. Telecommunications Equipment: Provides a reliable power supply for communication devices, ensuring consistent performance.
2. Industrial Control Systems: Offers a stable power source for industrial control panels and automation systems.
3. Medical Devices: Delivers a precise and regulated power supply for medical equipment, ensuring safety and reliability.
4. Consumer Electronics: Suitable for powering a wide range of consumer electronics, such as home appliances and portable devices.

Conclusion of L4972A

The L4972A is a versatile and efficient DC switching voltage regulator that offers adjustable output voltage, high output current, and a wide input voltage range. Its unique features, such as high switching frequency and RoHS3 compliance, make it an excellent choice for a variety of applications. Although the L4972A is now considered obsolete, its performance benefits and technical specifications still make it a valuable option for certain applications where a reliable and efficient power supply is crucial.