Texas Instruments

LM3671MFX-1.375/NOPB  

DC Switching Voltage Regulators

LM3671MFX-1.375/NOPB Description

The LM3671MFX-1.375/NOPB is a highly efficient, fixed-output voltage buck regulator designed by Texas Instruments. This IC is part of the Power Management Integrated Circuit (PMIC) category and is known for its robust performance and compact design. It features a fixed output voltage of 1.375V and is capable of delivering up to 600mA of output current. The regulator operates within an input voltage range of 2.7V to 5.5V, making it suitable for a variety of low-voltage applications. The LM3671MFX-1.375/NOPB employs a switching frequency of 2MHz, which allows for the use of smaller external components, thereby reducing the overall footprint and cost of the solution.

LM3671MFX-1.375/NOPB Features

• Fixed Output Voltage: The LM3671MFX-1.375/NOPB provides a stable output voltage of 1.375V, ensuring consistent power delivery to sensitive electronic components.
• High Efficiency: The buck topology and 2MHz switching frequency contribute to high efficiency, minimizing power loss and heat generation.
• Synchronous Rectification: The inclusion of a synchronous rectifier enhances efficiency, particularly at lower output voltages and higher load currents.
• Compact Package: Housed in a SOT23-5 package, this regulator is ideal for space-constrained designs.
• Wide Input Voltage Range: With an input voltage range of 2.7V to 5.5V, the LM3671MFX-1.375/NOPB can be used in a variety of applications, including those powered by single-cell Li-ion batteries.
• Compliance and Reliability: The regulator is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. Additionally, it has a moisture sensitivity level (MSL) of 1, making it suitable for extended storage and handling.
• Single Output: The regulator is designed for applications requiring a single, stable power rail, simplifying design and reducing complexity.

LM3671MFX-1.375/NOPB Applications

The LM3671MFX-1.375/NOPB is well-suited for a variety of applications where a compact, efficient power solution is required. Some specific use cases include:

• Portable Electronics: Ideal for handheld devices, smartphones, and tablets where space and power efficiency are critical.
• Wearable Devices: Perfect for fitness trackers, smartwatches, and other wearable technology that require minimal power consumption and compact design.
• Medical Devices: Suitable for portable medical devices such as glucose meters, pulse oximeters, and portable ECG machines, where reliability and efficiency are paramount.
• Industrial IoT: Useful in low-power sensors and IoT devices that require stable power delivery and minimal power loss.
• Consumer Electronics: Applicable in various consumer electronics such as digital cameras, MP3 players, and other battery-powered gadgets.

Conclusion of LM3671MFX-1.375/NOPB

The LM3671MFX-1.375/NOPB from Texas Instruments is a versatile and efficient buck regulator designed to meet the demands of modern low-voltage applications. Its fixed output voltage, high efficiency, and compact package make it an excellent choice for a wide range of devices, from portable electronics to medical equipment. While the product is now obsolete, its legacy continues to influence the design of future power management solutions. For applications requiring a reliable, space-efficient power regulator, the LM3671MFX-1.375/NOPB remains a notable option, offering significant advantages over similar models in terms of efficiency, compliance, and overall performance.

LM3671MFX-1.375/NOPB Documents

Download datasheets and manufacturer documentation for LM3671MFX-1.375/NOPB

Datasheets :

LM3671 Datasheet      

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LM3671 Datasheet