Texas Instruments

LM3671LC-1.2

LM3671LC-1.2 Description

The LM3671LC-1.2 is a fixed-output voltage regulator designed by Texas Instruments, featuring a 1.2V output voltage and a maximum output current of 600mA. This buck topology regulator operates within an input voltage range of 2.7V to 5.5V and utilizes a 2MHz switching frequency to ensure efficient power conversion. The LM3671LC-1.2 is housed in a surface-mount 6USON package, making it suitable for compact and high-density PCB designs. It is important to note that this product is currently marked as obsolete by the manufacturer, but it remains a viable option for existing designs or applications where its specific features are required.

LM3671LC-1.2 Features

The LM3671LC-1.2 offers several key features that make it a robust choice for various electronic applications:

• Fixed Output Voltage: The regulator provides a stable 1.2V output, ensuring consistent power supply to sensitive electronic components.
• Wide Input Voltage Range: With an input voltage range of 2.7V to 5.5V, the LM3671LC-1.2 can accommodate a variety of power sources, enhancing its versatility.
• High Switching Frequency: The 2MHz switching frequency allows for the use of smaller inductors and capacitors, reducing the overall footprint and cost of the power supply solution.
• Synchronous Rectification: The inclusion of a synchronous rectifier improves efficiency by reducing power losses, making the regulator suitable for applications where power efficiency is critical.
• Moisture Sensitivity Level (MSL) 1: The regulator is rated for unlimited exposure to moisture, ensuring reliability in various environmental conditions.
• REACH Compliance: The LM3671LC-1.2 is REACH unaffected, complying with stringent environmental regulations and ensuring it is free from harmful substances.
• Surface Mount Technology: The surface-mount package type facilitates easy integration into modern PCB designs, enhancing manufacturing efficiency and reliability.

LM3671LC-1.2 Applications

The LM3671LC-1.2 is ideal for a range of applications where a compact, efficient, and reliable power supply is required:

• Consumer Electronics: Ideal for powering low-voltage components in devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Suitable for powering microcontrollers, sensors, and other low-power electronics in industrial settings.
• Telecommunications: Can be used in base stations and other telecom equipment where efficient power conversion is essential.
• Automotive Electronics: Applicable in various automotive applications, such as infotainment systems and electronic control units, where space and efficiency are critical.

Conclusion of LM3671LC-1.2

The LM3671LC-1.2 is a high-performance buck voltage regulator that offers a combination of efficiency, reliability, and compact design. Its fixed 1.2V output and wide input voltage range make it suitable for a variety of applications, while its high switching frequency and synchronous rectification ensure optimal power conversion efficiency. Although marked as obsolete, the LM3671LC-1.2 remains a valuable component for existing designs and applications where its specific features are required. For new designs, engineers may consider exploring alternative models from Texas Instruments or other manufacturers to ensure long-term availability and support.