Product Overview: LM2678S-3.3

The LM2678S-3.3 from Texas Instruments is a highly efficient, integrated power solution that serves a wide range of applications. This SIMPLE SWITCHER® step-down voltage regulator is designed to provide a fixed output voltage of 3.3V with an input voltage range of 8V to 40V. The device is capable of delivering up to 5A of continuous output current with outstanding load and line regulation.

Key Features

• Efficiency: The LM2678S-3.3 is optimized for high efficiency, which can reach up to 92%, minimizing energy loss and heat generation.
• Output Voltage: It provides a stable 3.3V output, which is a common voltage level for digital circuits, making it suitable for powering microcontrollers, sensors, and other digital devices.
• Current Capacity: With a 5A output current capability, it can easily handle high current demands of various electronic components.
• Thermal Performance: The integrated thermal shutdown and current limit features protect the device and the load from damage due to overheating and overcurrent conditions.
• Adjustable Switching Frequency: The switching frequency can be adjusted up to 500 kHz, allowing flexibility in choosing inductor size and optimizing performance.

Applications

The LM2678S-3.3 is versatile and can be used in a variety of applications, including but not limited to:

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converters (Buck-Boost)

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability, and the LM2678S-3.3 is no exception. It is designed to meet the rigorous standards of the industry, ensuring long-term reliability and performance in your applications.

Package and Availability

The device is offered in a TO-263 package, which is suitable for surface mount technology and provides good thermal conduction paths. Check with authorized distributors for pricing and availability.