LM2671M-3.3/NOPB

The LM2671M-3.3/NOPB is a 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 useful in applications where efficient power conversion is required, such as in battery-powered devices, portable electronics, and various embedded systems.

Key Features:

1. Input Voltage Range: The LM2671 operates with a wide input voltage range, typically from 4.5V 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 circuits that require a stable supply.

3. Efficiency: The regulator boasts high efficiency, often exceeding 85%, which helps in reducing heat generation and prolonging battery life in portable applications.

4. Switching Frequency: The device operates at a fixed switching frequency of 260 kHz, which allows for the use of smaller external components, such as inductors and capacitors, contributing to a compact design.

5. Thermal Protection: The LM2671 includes built-in thermal shutdown protection, which prevents damage to the device in case of overheating.

6. Current Limit: It features a current limit function that protects the device and the load from excessive current conditions.

7. Package Type: The LM2671M-3.3/NOPB is available in a surface-mount package (MSOP-8), which is suitable for space-constrained applications.

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

Applications:

• Portable Devices: Ideal for battery-operated devices where efficiency and size are critical.
• Microcontroller Power Supplies: Provides a reliable power source for microcontrollers and digital logic circuits.
• Telecommunications: Used in various telecom equipment requiring stable voltage regulation.
• Industrial Equipment: Suitable for powering sensors and control circuits in industrial applications.

Electrical Characteristics:

• Output Current: Up to 1A
• Output Voltage Tolerance: Typically ±2%
• Quiescent Current: Low quiescent current helps in extending battery life in portable applications.

Conclusion:

The LM2671M-3.3/NOPB from Texas Instruments is a robust and efficient voltage regulator that meets the needs of modern electronic designs. Its combination of high efficiency, wide input voltage range, and compact packaging makes it an excellent choice for a variety of applications, particularly where space and power efficiency are paramount.