Texas Instruments

LM3676SD-3.3  

DC Switching Voltage Regulators

LM3676SD-3.3 Description

The LM3676SD-3.3 is a fixed-output, 3.3V buck regulator from Texas Instruments, designed to deliver a stable 600mA output current. This device operates within an input voltage range of 2.9V to 5.5V, making it suitable for a variety of power management applications. The regulator features 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 LM3676SD-3.3 also includes a synchronous rectifier, enhancing efficiency and performance. Despite its obsolescence status, the LM3676SD-3.3 remains a reliable choice for applications requiring a compact and efficient power supply. It is available in a surface-mount package, specifically in an 8-lead WSON (Tape & Reel) format, and is REACH unaffected with a moisture sensitivity level of 1 (unlimited).

LM3676SD-3.3 Features

• Fixed Output Voltage: The LM3676SD-3.3 provides a stable 3.3V output, ensuring consistent power delivery to connected devices.
• Wide Input Voltage Range: With an input voltage range of 2.9V to 5.5V, this regulator can accommodate various power sources, enhancing its versatility.
• High Switching Frequency: Operating at 2MHz, the regulator supports the use of smaller external components, which is advantageous for space-constrained designs.
• Synchronous Rectification: The inclusion of a synchronous rectifier improves efficiency, particularly at higher load currents, reducing power loss and heat generation.
• Single Output Configuration: The regulator is designed for a single positive output, simplifying the power supply architecture.
• Surface-Mount Technology: The 8-lead WSON package is ideal for surface-mount applications, facilitating automated assembly processes and compact PCB layouts.
• Moisture Sensitivity Level 1: The device is unaffected by moisture, making it suitable for a wide range of environmental conditions.
• REACH Compliance: The LM3676SD-3.3 is REACH unaffected, ensuring compliance with environmental and safety regulations.

LM3676SD-3.3 Applications

The LM3676SD-3.3 is well-suited for applications requiring a compact and efficient power supply solution. Its fixed 3.3V output and 600mA current capability make it ideal for:

• Portable Devices: Such as smartphones, tablets, and handheld gaming consoles, where space and efficiency are critical.
• Embedded Systems: Including microcontrollers, sensors, and IoT devices that require a stable power source.
• Wearable Technology: Smartwatches, fitness trackers, and other wearables benefit from the regulator's small form factor and high efficiency.
• Medical Devices: Portable medical equipment like glucose monitors and portable ECG devices can leverage the LM3676SD-3.3 for reliable power management.
• Industrial Applications: Small industrial sensors and controllers that require a stable and efficient power supply.

Conclusion of LM3676SD-3.3

The LM3676SD-3.3 from Texas Instruments is a robust and efficient buck regulator, offering a fixed 3.3V output and 600mA current capability. Its wide input voltage range, high switching frequency, and synchronous rectification provide significant performance benefits, making it an ideal choice for a variety of applications. Despite being marked as obsolete, the LM3676SD-3.3 remains a reliable option for designers seeking a compact and efficient power supply solution. Its surface-mount package and REACH compliance further enhance its suitability for modern electronic designs.

LM3676SD-3.3 Documents

Download datasheets and manufacturer documentation for LM3676SD-3.3