Texas Instruments

LM3674MFX-1.875  

DC Switching Voltage Regulators

LM3674MFX-1.875 Description

The LM3674MFX-1.875 is a fixed output voltage buck regulator designed for high efficiency and compact design in power management applications. Manufactured by Texas Instruments, this regulator offers a fixed output voltage of 1.875V 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 LM3674MFX-1.875 features a switching frequency of 2MHz, which allows for the use of smaller inductors and capacitors, resulting in a more compact and efficient design. The regulator is equipped with a synchronous rectifier, enhancing its efficiency and performance. It is housed in a SOT23-5 package, which is ideal for surface mount applications and contributes to its compact footprint.

LM3674MFX-1.875 Features

• Fixed Output Voltage: The LM3674MFX-1.875 provides a stable output voltage of 1.875V, ensuring consistent power delivery to connected devices.
• High Efficiency: With a switching frequency of 2MHz and a synchronous rectifier, the regulator achieves high efficiency, minimizing power loss and heat generation.
• Wide Input Voltage Range: The regulator operates efficiently within an input voltage range of 2.7V to 5.5V, making it versatile for various power supply scenarios.
• Compact Design: The SOT23-5 package and high switching frequency allow for a compact and space-efficient design, ideal for applications with limited board space.
• Surface Mount Compatibility: The surface mount package type ensures ease of integration into modern printed circuit board (PCB) designs.
• Moisture Sensitivity Level (MSL) 1: The regulator is classified as MSL 1, indicating it is not moisture sensitive and can be stored and handled without special precautions.
• REACH Compliance: The LM3674MFX-1.875 is REACH unaffected, ensuring compliance with environmental and safety regulations.

LM3674MFX-1.875 Applications

The LM3674MFX-1.875 is well-suited for a range of applications where compact, efficient power management is required. Some specific use cases include:

• Portable Electronic Devices: Ideal for powering smartphones, tablets, and other portable devices where space and efficiency are critical.
• Wearable Technology: The compact design and high efficiency make it suitable for wearables, ensuring minimal power consumption and extended battery life.
• IoT Devices: Provides a reliable power solution for Internet of Things (IoT) devices, supporting low-power sensors and communication modules.
• Medical Devices: Suitable for powering small medical devices, ensuring stable and efficient power delivery in critical applications.

Conclusion of LM3674MFX-1.875

The LM3674MFX-1.875 is a high-performance buck regulator that offers a unique combination of efficiency, compact design, and reliability. Its fixed output voltage of 1.875V and capability to deliver up to 600mA make it an excellent choice for a variety of power management applications. The regulator's wide input voltage range, high switching frequency, and synchronous rectifier ensure optimal performance and efficiency. Despite being marked as obsolete, the LM3674MFX-1.875 remains a valuable component for applications requiring a reliable and efficient power solution in a compact form factor.

LM3674MFX-1.875 Documents

Download datasheets and manufacturer documentation for LM3674MFX-1.875