LM2575HVT-12/NOPB

The LM2575HVT-12/NOPB is a step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 12V while efficiently converting higher input voltages. This device is particularly useful in applications where a reliable power supply is needed, such as in automotive, industrial, and consumer electronics.

Key Features:

1. Output Voltage: The LM2575HVT-12/NOPB specifically outputs a fixed voltage of 12V, making it suitable for powering devices that require this specific voltage level.

2. Input Voltage Range: The regulator can accept a wide input voltage range, typically from 14V to 40V, allowing it to be used in various applications with different power supply requirements.

3. Output Current: It is capable of delivering up to 1A of output current, which is sufficient for many low to medium power applications.

4. Efficiency: The LM2575HVT-12/NOPB is designed for high efficiency, often exceeding 75% under typical load conditions. This efficiency helps to minimize heat generation and power loss, making it suitable for battery-powered applications.

5. Thermal Protection: The device includes built-in thermal shutdown protection, which prevents damage due to overheating. This feature is crucial for maintaining reliability in demanding environments.

6. Short-Circuit Protection: It also features current limiting and short-circuit protection, ensuring that the device can handle fault conditions without sustaining damage.

7. Package Type: The LM2575HVT-12/NOPB is available in a TO-220 package, which provides good thermal performance and ease of mounting on a PCB.

8. Switching Frequency: The regulator operates at a fixed switching frequency of 52 kHz, which helps to reduce the size of external components such as inductors and capacitors.

9. Application Areas: Common applications include power supplies for microcontrollers, automotive electronics, and other devices that require a stable 12V supply.

10. Pin Configuration: The device typically features five pins: input voltage (Vin), ground (GND), output voltage (Vout), feedback (FB), and switch (SW), allowing for straightforward integration into circuit designs.

Conclusion:

The LM2575HVT-12/NOPB from Texas Instruments is a versatile and efficient voltage regulator that provides a reliable 12V output for various applications. Its combination of high efficiency, thermal protection, and ease of use makes it a popular choice among engineers and designers looking for a robust power management solution.