LM2673SX-3.3/NOPB

The LM2673SX-3.3/NOPB is a step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 3.3V from a higher input voltage, making it suitable for various applications in power management.

Key Features:

1. Output Voltage: The LM2673SX-3.3/NOPB specifically outputs a regulated voltage of 3.3V, which is commonly used in digital circuits and microcontrollers.

2. Input Voltage Range: The device can accept a wide input voltage range, typically from 4.5V to 40V, allowing it to be used in various power supply scenarios.

3. Output Current: It is capable of delivering up to 1A of output current, making it suitable for powering a range of devices, from small sensors to more demanding loads.

4. Efficiency: The LM2673SX-3.3/NOPB is designed for high efficiency, often exceeding 80% under typical operating conditions. This efficiency helps to minimize heat generation and prolong battery life in portable applications.

5. Switching Frequency: The regulator operates at a fixed switching frequency of 260 kHz, which helps to reduce the size of external components such as inductors and capacitors.

6. Thermal Protection: The device includes thermal shutdown protection, which prevents damage due to overheating by shutting down the regulator if the junction temperature exceeds a certain threshold.

7. Short-Circuit Protection: It features current limiting to protect against short circuits, ensuring that the device can handle fault conditions without sustaining damage.

8. Package Type: The LM2673SX-3.3/NOPB is available in a surface-mount package (SOT-223), which is compact and suitable for modern PCB designs, allowing for efficient use of space.

9. Application Areas: This voltage regulator is ideal for applications such as battery-powered devices, portable electronics, and any system requiring a stable 3.3V power supply. It is also used in automotive applications, industrial equipment, and telecommunications.

10. Pin Configuration: The device typically features a simple pin configuration that includes input voltage, ground, output voltage, and feedback pins, making it easy to integrate into existing designs.

Conclusion:

The LM2673SX-3.3/NOPB from Texas Instruments is a versatile and efficient buck regulator that provides a reliable 3.3V output for a variety of applications. Its combination of high efficiency, robust protection features, and compact packaging makes it an excellent choice for designers looking to implement reliable power management solutions in their electronic systems.