LM2575SX-12/NOPB

The LM2575SX-12/NOPB is a step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 12V from a higher input voltage, making it suitable for various applications where efficient power conversion is required.

Key Features:

1. Output Voltage: The LM2575SX-12/NOPB specifically outputs a fixed voltage of 12V, which is ideal for powering devices that require a consistent voltage supply.

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

3. Output Current: It is capable of delivering up to 1A of output current, making it suitable for powering moderate loads.

4. Efficiency: The LM2575SX-12/NOPB is designed for high efficiency, often exceeding 75% under typical operating conditions. This efficiency helps to minimize heat generation and power loss, which is crucial for battery-powered and energy-sensitive applications.

5. Thermal Protection: The regulator includes built-in thermal shutdown protection, which prevents damage to the device in case of overheating, ensuring reliable operation.

6. Short-Circuit Protection: It features current limiting and short-circuit protection, which safeguards both the regulator and the load in the event of a fault condition.

7. Package Type: The LM2575SX-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 device operates at a fixed switching frequency of 52 kHz, which helps in reducing the size of external components such as inductors and capacitors.

9. Application Areas: This voltage regulator is commonly used in various applications, including power supplies for consumer electronics, automotive systems, industrial equipment, and battery chargers.

10. Pin Configuration: The LM2575SX-12/NOPB typically has five pins, including input voltage, output voltage, ground, feedback, and switch, allowing for straightforward integration into circuit designs.

Summary:

The LM2575SX-12/NOPB from Texas Instruments is a robust and efficient buck converter that provides a fixed 12V output with a maximum current of 1A. Its wide input voltage range, high efficiency, and built-in protection features make it an excellent choice for a variety of applications requiring reliable power management. The TO-220 package facilitates easy thermal management and integration into electronic designs.