The LM2673T-3.3 is a high-efficiency, step-down voltage regulator designed and manufactured by Texas Instruments. This regulator is part of the SIMPLE SWITCHER® series and is known for its ease of use and robust performance. It is capable of delivering up to 3A of continuous output current with an input voltage range of 8V to 40V. The LM2673T-3.3 is specifically designed to provide a regulated 3.3V output voltage, making it an ideal choice for a wide array of applications, including industrial controls, consumer electronics, and embedded systems.

Key Features

• Output Voltage: Fixed 3.3V with high accuracy.
• Output Current: Capable of delivering 3A of continuous current.
• Efficiency: Up to 92% efficient operation, minimizing heat generation and power loss.
• Adjustable Switching Frequency: The switching frequency can be set between 260 kHz and 400 kHz, allowing flexibility in balancing efficiency and component size.
• Thermal Shutdown: Built-in thermal shutdown feature protects the device in high-temperature conditions.
• Current Limit Protection: Offers current limiting to protect the device and the load from overcurrent conditions.

Applications

The LM2673T-3.3's stable and reliable 3.3V output makes it suitable for a variety of uses, including but not limited to:

• Power supplies for digital systems like microprocessors, FPGAs, and DSPs.
• Point of load conversions from higher voltage power rails.
• Battery-powered devices requiring efficient power management.
• Telecommunications infrastructure.

Package and Quality

The LM2673T-3.3 comes in a TO-220 package, known for its ease of handling and excellent thermal performance. Texas Instruments ensures high-quality standards, and the product is compliant with RoHS regulations, ensuring environmental considerations are met.

Support and Resources

Designers can access a wealth of resources provided by Texas Instruments, including datasheets, design tools, and application notes to facilitate the integration of the LM2673T-3.3 into their projects. Technical support is also available to address any design or product-related questions.