LM2575HVSX-3.3/NOPB

The LM2575HVSX-3.3/NOPB is a high-efficiency step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 3.3V while accepting a wide input voltage range, making it suitable for various applications, including power management in automotive, industrial, and consumer electronics.

Key Features:

1. Output Voltage: The LM2575HVSX-3.3/NOPB specifically outputs a regulated voltage of 3.3V, which is ideal for powering microcontrollers, sensors, and other low-voltage devices.

2. Input Voltage Range: This regulator can accept input voltages ranging from 4.5V to 60V, allowing it to be used in systems with varying power supply levels.

3. Output Current: It is capable of delivering up to 1A of output current, making it suitable for applications that require moderate power levels.

4. Efficiency: The LM2575HVSX-3.3/NOPB boasts high efficiency, often exceeding 80% under typical load conditions. This efficiency helps to minimize heat generation and prolongs the lifespan of the device.

5. Thermal Protection: The device includes built-in thermal shutdown features, which protect it from overheating during operation.

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

7. Package Type: The LM2575HVSX-3.3/NOPB is available in a TO-220 package, which provides good thermal performance and ease of mounting on PCBs.

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. Ease of Use: The LM2575HVSX-3.3/NOPB is designed for simplicity, with minimal external components required for operation. This makes it an attractive choice for designers looking to implement a reliable power supply solution quickly.

10. Applications: Common applications include battery-powered devices, automotive electronics, and any system requiring a stable 3.3V power supply from a higher voltage source.

Electrical Characteristics:

• Input Voltage Range: 4.5V to 60V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Efficiency: Up to 90% (depending on load conditions)
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C

Conclusion:

The LM2575HVSX-3.3/NOPB from Texas Instruments is a robust and efficient voltage regulator that provides a reliable solution for converting higher voltages to a stable 3.3V output. Its combination of high efficiency, thermal protection, and ease of use makes it a popular choice among engineers and designers in various electronic applications.