Product Overview: LM2679T-5.0

The LM2679T-5.0 is a high-efficiency, SIMPLE SWITCHER® power converter from Texas Instruments, designed to deliver a fixed output voltage of 5.0V with an impressive load current of up to 3A. This step-down voltage regulator incorporates a unique combination of features that facilitate a straightforward and reliable power supply solution for a wide array of applications.

Key Features

• Output Voltage: Provides a steady 5.0V output, which is ideal for logic-level power requirements in various electronic systems.
• Current Capability: Capable of delivering up to 3A of load current, making it suitable for powering moderate to high-current devices.
• Efficiency: Boasts a high efficiency that reduces power loss and heat dissipation, thanks to its integrated switch and advanced circuit design.
• Thermal Protection: Features an internal thermal shutdown mechanism that safeguards the device against overheating.
• Adjustable Switching Frequency: Allows the user to set the switching frequency anywhere from 260 kHz to 400 kHz, facilitating the use of smaller, more cost-effective inductors and capacitors.
• Voltage Protection: Comes with built-in overvoltage protection to ensure the longevity and reliability of the device and the powered application.

Applications

The LM2679T-5.0 is versatile and can be used in a variety of applications, including:

• Simple high-efficiency step-down (buck) regulators.
• Efficient pre-regulators for linear regulators.
• On-card switching regulators for elimination of noise and distribution problems associated with single-point regulation.

Product Construction & Packaging

This regulator is housed in a TO-220 package, which is known for its robustness and excellent thermal performance, making it suitable for commercial and industrial environments. Its five leads provide easy integration into circuit designs.

Design Support

Texas Instruments provides comprehensive design support for the LM2679T-5.0, including datasheets, design tools, and technical resources to assist engineers in implementing this regulator into their designs efficiently and effectively.