LM2575T-3.3/NOPB

The LM2575T-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 LM2575T-3.3/NOPB specifically outputs a fixed voltage of 3.3V, which is ideal for powering microcontrollers, sensors, and other low-voltage devices.

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 can deliver up to 1A of output current, making it suitable for moderate power applications.

4. Efficiency: The LM2575 is designed for high efficiency, often exceeding 75% under typical load conditions. This efficiency helps in reducing heat generation and improving overall system reliability.

5. Integrated Features: The regulator includes built-in protection features such as thermal shutdown and current limiting, which enhance the safety and longevity of the device.

6. Switching Frequency: The LM2575 operates at a fixed switching frequency of 52 kHz, which helps in minimizing the size of external components like inductors and capacitors.

7. Package Type: The LM2575T-3.3/NOPB is available in a TO-220 package, which provides good thermal performance and ease of mounting on PCBs.

8. Application Areas: This voltage regulator is commonly used in applications such as power supplies for computers, automotive electronics, battery chargers, and other consumer electronics where a stable 3.3V output is required.

9. Thermal Performance: The TO-220 package allows for effective heat dissipation, which is crucial for maintaining performance under load.

10. Pin Configuration: The device typically features five pins: input voltage, ground, output voltage, feedback, and switch, allowing for straightforward integration into circuit designs.

Summary:

The LM2575T-3.3/NOPB from Texas Instruments is a robust and efficient buck converter that provides a reliable 3.3V output from a higher input voltage. Its combination of high efficiency, integrated protection features, and ease of use makes it a popular choice for designers looking to implement power management solutions in a variety of electronic applications.