The LM2679S-3.3/NOPB is a high-performance, easy-to-use switching regulator from Texas Instruments, designed to cater to a wide range of power supply applications. It is a member of the LM2679 series, which are Simple Switcher® 3A step-down voltage regulators with a fixed 3.3V output voltage.

Key Features

• Output Voltage: The device provides a stable 3.3V output, which is a common voltage requirement for digital circuits, including microcontrollers, memory, and logic devices.
• Current Rating: It can deliver up to 3A of continuous output current, making it suitable for powering a wide range of components.
• Efficiency: The LM2679S-3.3/NOPB operates with a high efficiency, which minimizes heat generation and makes it ideal for use in thermally sensitive applications.
• Adjustable Switching Frequency: The switching frequency can be adjusted up to 260 kHz, allowing for flexibility in the design of the inductor and capacitors, balancing efficiency and component size.
• Protection Features: It includes built-in protection features such as thermal shutdown, current limit, and overvoltage protection, ensuring safe operation under abnormal conditions.

Applications

The LM2679S-3.3/NOPB is versatile and can be used in various 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

Package and Reliability

The device is available in a TO-263 package, which is designed for optimal thermal performance and space-saving on the PCB. The NOPB designation indicates that it is a lead-free ("No Lead") component, aligning with modern environmental standards for electronic devices. The LM2679S-3.3/NOPB is built with Texas Instruments' commitment to quality and reliability, ensuring a dependable solution for power regulation needs.