LM337IMPX/NOPB

The LM337IMPX/NOPB is a voltage regulator manufactured by Texas Instruments, specifically designed for adjustable negative voltage regulation. It is part of the LM337 family of devices, which are known for their versatility and reliability in various electronic applications.

Key Features:

1. Adjustable Output Voltage: The LM337 allows for an adjustable output voltage range from -1.25V to -37V, making it suitable for a wide range of applications requiring negative voltage regulation.

2. Output Current: The device can provide a maximum output current of up to 1.5A, which is sufficient for many low to medium power applications.

3. Thermal Regulation: The LM337 includes thermal overload protection, which helps prevent damage to the device and the circuit in case of overheating.

4. Short-Circuit Protection: It features internal current limiting and short-circuit protection, ensuring that the device operates safely under fault conditions.

5. Low Dropout Voltage: The LM337 has a low dropout voltage, which means it can maintain regulation even when the input voltage is only slightly above the output voltage.

6. Package Type: The LM337IMPX/NOPB is typically available in a TO-220 package, which provides good thermal performance and is easy to mount on a heatsink if necessary.

7. Pin Configuration: The device has three pins: Adjust (Adj), Output (Vout), and Input (Vin). The Adjust pin allows for the output voltage to be set using external resistors.

8. Operating Temperature Range: The LM337 is designed to operate over a wide temperature range, typically from -40°C to +125°C, making it suitable for various environmental conditions.

9. No Lead (NOPB): The "NOPB" designation indicates that the device is free from lead, making it compliant with RoHS (Restriction of Hazardous Substances) standards.

Applications:

The LM337IMPX/NOPB is commonly used in applications such as:

• Power supplies for negative voltage rails in analog circuits.
• Adjustable power supplies for testing and prototyping.
• Battery chargers and management systems.
• Audio equipment requiring negative voltage for operational amplifiers.

Conclusion:

The LM337IMPX/NOPB from Texas Instruments is a robust and flexible solution for applications requiring adjustable negative voltage regulation. Its combination of features, including thermal and short-circuit protection, low dropout voltage, and a wide output voltage range, makes it a popular choice among engineers and designers in the electronics industry.