LM2673S-ADJ/NOPB

The LM2673S-ADJ/NOPB is a versatile step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage from a higher input voltage, making it suitable for a variety of applications, including power management in portable devices, automotive systems, and industrial equipment.

Key Features:

1. Adjustable Output Voltage: The LM2673S-ADJ/NOPB allows for an adjustable output voltage ranging from 1.2V to 37V, enabling flexibility in design to meet specific voltage requirements.

2. High Efficiency: With a typical efficiency of up to 90%, this regulator minimizes power loss and heat generation, which is crucial for battery-powered applications.

3. Wide Input Voltage Range: It can accept input voltages from 4.5V to 40V, making it suitable for a broad range of power sources, including batteries and unregulated power supplies.

4. Integrated Switch: The device features an integrated N-channel MOSFET switch, which simplifies the design and reduces the number of external components required.

5. Current Limit and Thermal Shutdown: The LM2673S-ADJ/NOPB includes built-in current limiting and thermal shutdown features to protect the device and the load from overcurrent and overheating conditions.

6. Simple Design: The regulator is designed for ease of use, with a minimal number of external components needed for operation. This simplifies the PCB layout and reduces overall design complexity.

7. Package Type: It is available in a surface-mount package (TO-220), which is suitable for applications where space is a concern and allows for efficient thermal management.

8. Operating Temperature Range: The device operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for harsh environments.

9. Applications: Common applications include battery-powered devices, automotive electronics, industrial automation, and any system requiring efficient voltage regulation.

Electrical Characteristics:

• Output Current: The LM2673S-ADJ/NOPB can deliver up to 3A of output current, making it capable of powering a variety of loads.
• Switching Frequency: The device operates at a fixed switching frequency of 150 kHz, which helps in reducing the size of external components like inductors and capacitors.

Conclusion:

The LM2673S-ADJ/NOPB from Texas Instruments is a robust and efficient voltage regulator that provides adjustable output voltage with high efficiency and integrated protection features. Its wide input voltage range, ease of use, and suitability for various applications make it a popular choice among engineers and designers looking for reliable power management solutions.