Texas Instruments

LM2679T-12

LM2679T-12 Description

The LM2679T-12 is a fixed output voltage regulator from Texas Instruments, designed to deliver a stable 12V output at a maximum current of 5A. This regulator is part of the SIMPLE SWITCHER® series, known for its high performance and ease of use in power management applications. The LM2679T-12 features a wide input voltage range from 8V to 40V, making it suitable for a variety of power supply designs. It operates at a switching frequency of 260kHz, which allows for the use of smaller inductors and capacitors, reducing the overall size of the power supply.

The regulator is housed in a through-hole TO220-7 package, which provides robust mechanical stability and excellent thermal performance. The LM2679T-12 is designed with a positive output configuration and does not feature synchronous rectification, ensuring a straightforward design process. The product is classified as obsolete, but it remains a reliable choice for applications where its specific attributes are required. It is REACH unaffected and falls under the ECCN classification EAR99, with an HTSUS code of 8542.39.0001.

LM2679T-12 Features

• Fixed Output Voltage: The LM2679T-12 provides a stable 12V output, ensuring consistent power delivery to connected devices.
• Wide Input Voltage Range: With an input voltage range from 8V to 40V, the regulator can accommodate a variety of input sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 5A of output current, the LM2679T-12 is suitable for applications requiring significant power.
• High Switching Frequency: Operating at 260kHz, the regulator allows for the use of smaller passive components, reducing the size and cost of the power supply.
• Positive Output Configuration: The positive output configuration ensures compatibility with a wide range of electronic systems.
• Through-Hole Packaging: The TO220-7 package provides robust mechanical stability and excellent thermal performance, making it ideal for industrial applications.
• SIMPLE SWITCHER® Series: Part of the SIMPLE SWITCHER® series, the LM2679T-12 offers high performance and ease of use, simplifying the design process for engineers.

LM2679T-12 Applications

The LM2679T-12 is ideal for a variety of applications where a stable 12V output and high current delivery are required. Some specific use cases include:

• Industrial Power Supplies: The regulator's robust design and wide input voltage range make it suitable for industrial applications where reliability and performance are critical.
• Telecommunications Equipment: The LM2679T-12 can provide stable power to telecommunication devices, ensuring consistent operation under varying input conditions.
• Automotive Electronics: The wide input voltage range and high current capability make it a good fit for automotive applications, where it can power various electronic systems.
• Consumer Electronics: In consumer electronics, the LM2679T-12 can be used to power devices that require a stable 12V supply, such as monitors and peripherals.

Conclusion of LM2679T-12

The LM2679T-12 from Texas Instruments is a reliable and versatile fixed output voltage regulator, offering a stable 12V output at up to 5A. Its wide input voltage range, high switching frequency, and robust through-hole packaging make it suitable for a variety of applications, including industrial power supplies, telecommunications equipment, automotive electronics, and consumer electronics. Despite being classified as obsolete, the LM2679T-12 remains a valuable component for engineers seeking a straightforward and high-performance power management solution.