Texas Instruments

LM3670MFX-1.8

LM3670MFX-1.8 Description

The LM3670MFX-1.8 is a fixed-output, positive buck voltage regulator designed by Texas Instruments. This regulator is part of the DC Switching Voltage Regulators category and is known for its high efficiency and compact design. It features a fixed output voltage of 1.8V and can deliver up to 350mA of output current. The regulator operates within an input voltage range of 2.5V to 5.5V, making it suitable for a variety of low-voltage applications. With a switching frequency of 1MHz, the LM3670MFX-1.8 ensures fast transient response and minimal output ripple. The device also includes a synchronous rectifier, enhancing its efficiency and performance.

The LM3670MFX-1.8 is housed in a surface-mount SOT23-5 package, which is ideal for space-constrained designs. It is available in a tape and reel packaging format (Tape & Reel - TR), facilitating automated assembly processes. Despite its small form factor, the regulator maintains robust performance, making it a reliable choice for modern electronic systems. The product is REACH unaffected and has an ECCN classification of EAR99, ensuring compliance with international regulations. It is also categorized under HTSUS code 8542.39.0001.

LM3670MFX-1.8 Features

• Fixed Output Voltage: The LM3670MFX-1.8 provides a stable 1.8V output, ensuring consistent power delivery to sensitive electronic components.
• Wide Input Voltage Range: With an input voltage range of 2.5V to 5.5V, the regulator is versatile and can accommodate various power sources.
• High Efficiency: The inclusion of a synchronous rectifier significantly improves efficiency, reducing power loss and heat generation.
• Compact Design: The SOT23-5 package allows for integration into space-limited applications without compromising performance.
• Fast Switching Frequency: A 1MHz switching frequency ensures rapid transient response and low output ripple, enhancing overall system stability.
• Surface Mount Technology: The regulator's surface-mount design supports automated assembly processes, streamlining manufacturing.
• Moisture Sensitivity Level 1: The device is suitable for unlimited exposure to moisture, making it ideal for a wide range of environmental conditions.
• Compliance: The LM3670MFX-1.8 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM3670MFX-1.8 Applications

The LM3670MFX-1.8 is well-suited for a variety of applications requiring a stable and efficient power supply. Its compact size and high efficiency make it ideal for:

• Portable Devices: The regulator's low power consumption and small form factor are perfect for battery-powered devices such as smartphones, tablets, and wearable technology.
• Embedded Systems: Its ability to operate within a wide input voltage range makes it suitable for embedded systems in industrial and automotive applications.
• Consumer Electronics: The LM3670MFX-1.8 can power various consumer electronics, including digital cameras, MP3 players, and other portable devices.
• Communication Devices: The regulator's efficiency and stability are beneficial for communication devices, ensuring reliable performance.

Conclusion of LM3670MFX-1.8

The LM3670MFX-1.8 is a high-performance buck voltage regulator that offers a combination of efficiency, stability, and compact design. Its fixed 1.8V output and wide input voltage range make it versatile for various low-voltage applications. The inclusion of a synchronous rectifier and a 1MHz switching frequency ensures high efficiency and minimal power loss, making it an ideal choice for portable and embedded systems. Despite its small form factor, the regulator maintains robust performance, ensuring reliable power delivery. While the product is now obsolete, its legacy in the electronics industry remains significant, and it continues to be a reference point for modern voltage regulators.