The LM2679SX-12 is a high-efficiency, SIMPLE SWITCHER® step-down voltage regulator designed and manufactured by Texas Instruments. This regulator is capable of delivering up to 5A of continuous output current with an input voltage range from 8V to 40V, making it an excellent choice for a wide variety of applications that require a stable 12V supply.

Key Features

• Output Voltage: The LM2679SX-12 provides a fixed output voltage of 12V, which is ideal for powering 12V systems directly without the need for additional voltage regulation.
• High Efficiency: With its innovative design, this regulator offers efficiencies up to 92%, minimizing energy loss and heat generation, and allowing for a more compact system design due to reduced cooling requirements.
• High Current Output: The device is capable of delivering up to 5A of load current, suitable for high-power applications.
• Adjustable Switching Frequency: The switching frequency can be adjusted up to 260 kHz, allowing designers to optimize between efficiency and component size.
• Thermal Shutdown and Current Limit: Built-in thermal shutdown and current limit protections ensure safe operation under abnormal operating conditions.
• Simple External Components: Requires minimal external components for operation, simplifying design and reducing bill of materials.

Applications

The LM2679SX-12 is versatile and can be used in a variety of applications, including:

• Power supplies for embedded systems
• Automotive accessories
• Industrial power systems
• Telecommunications equipment
• Office and home electronics

Package and Availability

The LM2679SX-12 is offered in a TO-263 package, known for its excellent power dissipation characteristics. This package is suitable for surface mount technology (SMT) and is compatible with standard PCB manufacturing processes. Check with Texas Instruments or authorized distributors for availability and bulk pricing options.

Quality and Reliability

As with all Texas Instruments products, the LM2679SX-12 is designed to meet the highest quality and reliability standards. It is RoHS compliant and is suitable for use in commercial, industrial, and automotive-grade applications subject to rigorous testing and certification processes.