LM2574HVMX-3.3/NOPB

The LM2574HVMX-3.3/NOPB is a high-performance, step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 3.3V with a maximum output current of 1A. This device is particularly well-suited for applications requiring efficient power conversion from a higher input voltage to a lower output voltage.

Key Features:

1. Input Voltage Range: The LM2574HVMX-3.3/NOPB can accept a wide input voltage range, typically from 4.75V to 40V, making it versatile for various power supply applications.

2. Output Voltage: The fixed output voltage of 3.3V is ideal for powering microcontrollers, sensors, and other digital devices that require a stable supply.

3. Efficiency: The device boasts high efficiency, often exceeding 80% under typical load conditions. This efficiency helps to minimize heat generation and prolongs the lifespan of the components in the circuit.

4. Switching Frequency: The LM2574 operates at a fixed switching frequency of 52 kHz, which helps to reduce the size of external components such as inductors and capacitors.

5. Thermal Protection: It includes built-in thermal shutdown and current limiting features, providing protection against overheating and overcurrent conditions.

6. Package Type: The LM2574HVMX-3.3/NOPB is available in a surface-mount package (TO-220), which facilitates easy integration into compact designs.

7. Application Areas: This voltage regulator is suitable for a variety of applications, including battery-powered devices, automotive electronics, and industrial equipment, where reliable and efficient power management is crucial.

8. Pin Configuration: The device typically features a simple pin configuration, including input, output, ground, and feedback pins, allowing for straightforward circuit design.

9. No Lead (NOPB): The NOPB designation indicates that the product is free from lead, making it compliant with environmental regulations such as RoHS.

Typical Applications:

• Power supplies for microcontrollers and digital signal processors
• Automotive power management systems
• Battery chargers and management systems
• Distributed power systems
• Industrial automation and control systems

Conclusion:

The LM2574HVMX-3.3/NOPB from Texas Instruments is a robust and efficient solution for applications requiring a reliable 3.3V power supply. Its combination of high efficiency, wide input voltage range, and built-in protection features makes it an excellent choice for both new designs and upgrades in existing systems.