Texas Instruments

LM2679S-12

LM2679S-12 Description

The LM2679S-12 is a fixed-output voltage regulator from Texas Instruments, designed to deliver a stable 12V output at a maximum current of 5A. This device is part of the SIMPLE SWITCHER® series, known for its high performance and ease of use in power management applications. The LM2679S-12 operates within an input voltage range of 8V to 40V, making it suitable for a wide variety of power supply designs. It features a switching frequency of 260kHz, which allows for the use of smaller inductors and capacitors, reducing the overall size of the power supply.

LM2679S-12 Features

• Fixed Output Voltage: The LM2679S-12 provides a stable 12V output, ensuring consistent power delivery to connected devices.
• Wide Input Voltage Range: With an input voltage range of 8V to 40V, this regulator can handle a variety of input conditions, making it versatile for different applications.
• High Output Current: Capable of delivering up to 5A of output current, the LM2679S-12 is suitable for high-power applications.
• Buck Topology: Utilizing a buck converter topology, the LM2679S-12 offers high efficiency and low power loss.
• Surface Mount Packaging: The surface mount package type ensures easy integration into compact designs.
• Switching Frequency: The 260kHz switching frequency allows for the use of smaller passive components, reducing the overall footprint of the power supply.
• Moisture Sensitivity Level: With an MSL of 3 (168 hours), the LM2679S-12 is suitable for use in environments with varying humidity levels.
• REACH Compliance: The device is REACH unaffected, ensuring compliance with environmental regulations.

LM2679S-12 Applications

The LM2679S-12 is ideal for a range of applications where a stable 12V output is required. Its high output current and wide input voltage range make it suitable for:

• Industrial Power Supplies: Providing stable power to industrial equipment and machinery.
• Telecommunications: Supplying power to telecommunication devices and infrastructure.
• Automotive Electronics: Ensuring reliable power delivery in automotive applications.
• Consumer Electronics: Powering devices such as gaming consoles, home theaters, and other high-power consumer electronics.
• Medical Devices: Providing stable power to medical equipment where reliability is critical.

Conclusion of LM2679S-12

The LM2679S-12 is a robust and versatile power management IC that offers a stable 12V output with a maximum current of 5A. Its wide input voltage range, high efficiency, and compact surface mount package make it an excellent choice for a variety of applications. While the product is marked as obsolete, it remains a reliable option for existing designs and applications where its specific features are required. The LM2679S-12's compliance with environmental regulations and its ability to operate in varying humidity levels further enhance its suitability for diverse environments.