The LM2679T-3.3 from Texas Instruments is a part of the SIMPLE SWITCHER® family of power converters, designed to offer high efficiency and ease of use. This particular model is a 3.3V, 5A step-down voltage regulator encapsulated in a TO-220 package, providing a robust and compact solution for a wide range of power supply applications.

Key Features:

• Output Voltage: The device provides a fixed output voltage of 3.3V, which is ideal for logic level power supplies and other low voltage applications.
• Output Current: Capable of delivering up to 5A of continuous output current, the LM2679T-3.3 can power a wide array of components and systems.
• High Efficiency: With an efficiency of up to 92%, this voltage regulator minimizes power loss, making it suitable for energy-sensitive designs.
• Adjustable Switching Frequency: The switching frequency can be set from 260 kHz to 400 kHz with a single external resistor, providing design flexibility and optimization of component sizes.
• Thermal Shutdown and Current Limit: Integrated safety features protect the device and the system from excessive temperature and current conditions.
• Simple External Components: Requires minimal external components for operation, simplifying design and reducing overall system cost.

Applications:

The LM2679T-3.3 is suitable for a variety of applications, including:

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Adjustable power supplies

Conclusion:

The LM2679T-3.3 is a reliable and efficient solution for designers looking to implement a high-performance power supply in their systems. Its combination of features, such as high current capability, adjustable switching frequency, and thermal protection, make it a versatile choice for a broad range of applications. Manufactured by Texas Instruments, a leader in semiconductor solutions, you can trust the LM2679T-3.3 to deliver consistent performance and quality.