Texas Instruments

LM3671MFX-1.5/NOPB  

DC Switching Voltage Regulators

LM3671MFX-1.5/NOPB Description

The LM3671MFX-1.5/NOPB is a fixed output voltage buck regulator designed by Texas Instruments, offering a robust solution for power management applications. This IC features a fixed output voltage of 1.5V and is capable of delivering up to 600mA of output current. It operates within an input voltage range of 2.7V to 5.5V, making it suitable for a variety of power supply applications. The regulator employs a switching frequency of 2MHz, which allows for the use of smaller inductors and capacitors, thereby reducing the overall footprint of the power supply solution.

The LM3671MFX-1.5/NOPB is housed in a compact SOT23-5 package, which is ideal for surface-mount applications. It includes a synchronous rectifier, enhancing efficiency and reducing power loss. This regulator is designed with a positive output configuration and is REACH unaffected, ensuring compliance with environmental regulations. Additionally, it is ROHS3 compliant and has a moisture sensitivity level (MSL) of 1, making it suitable for unlimited storage conditions.

LM3671MFX-1.5/NOPB Features

• Fixed Output Voltage: The LM3671MFX-1.5/NOPB provides a fixed output voltage of 1.5V, ensuring stable power delivery to sensitive electronic components.
• High Efficiency: With a synchronous rectifier, the regulator achieves high efficiency, reducing power loss and heat generation.
• Wide Input Voltage Range: The regulator operates within an input voltage range of 2.7V to 5.5V, making it versatile for various power sources.
• High Switching Frequency: The 2MHz switching frequency allows for the use of smaller passive components, reducing the overall size and cost of the power supply.
• Compact Packaging: The SOT23-5 package is ideal for surface-mount applications, saving space on the PCB.
• Environmental Compliance: The regulator is REACH unaffected and ROHS3 compliant, ensuring it meets stringent environmental standards.
• Moisture Sensitivity Level: With an MSL of 1, the regulator can be stored without humidity control, simplifying inventory management.

LM3671MFX-1.5/NOPB Applications

The LM3671MFX-1.5/NOPB is well-suited for a variety of applications where a compact, high-efficiency power supply is required. Some specific use cases include:

• Portable Electronics: Ideal for powering mobile devices, tablets, and other portable electronics where space and efficiency are critical.
• Consumer Electronics: Suitable for applications such as digital cameras, media players, and other consumer devices that require a reliable power supply.
• Industrial Applications: Can be used in industrial control systems, sensors, and other applications that demand a stable and efficient power source.
• Communication Devices: Provides a stable power supply for routers, modems, and other communication equipment.

Conclusion of LM3671MFX-1.5/NOPB

The LM3671MFX-1.5/NOPB from Texas Instruments is a high-performance buck regulator that offers a fixed output voltage of 1.5V and a maximum output current of 600mA. Its wide input voltage range, high switching frequency, and compact SOT23-5 package make it an ideal solution for a variety of power management applications. The inclusion of a synchronous rectifier ensures high efficiency, reducing power loss and heat generation. While the product is marked as obsolete, its unique features and advantages make it a reliable choice for existing designs and legacy systems.

LM3671MFX-1.5/NOPB Documents

Download datasheets and manufacturer documentation for LM3671MFX-1.5/NOPB

Datasheets :

LM3671 Datasheet      

HTML Datasheet :

LM3671 Datasheet