Microchip Technology

LM2576-3.3WT  

DC Switching Voltage Regulators

LM2576-3.3WT Description

The LM2576-3.3WT is a fixed-output voltage regulator designed by Microchip Technology, offering a robust and efficient solution for a wide range of DC switching voltage regulation applications. This regulator is part of the LM2576 family and is specifically tailored to provide a stable 3.3V output at a maximum current of 3A. It operates within an input voltage range of 4V to 40V, making it highly versatile for various power supply requirements.

The LM2576-3.3WT employs a buck topology, which ensures high efficiency and low power dissipation. With a switching frequency of 52kHz, it balances performance and noise levels, making it suitable for both high-current and low-noise applications. The regulator is housed in a TO220-5 package, which is ideal for through-hole mounting, providing excellent thermal performance and mechanical stability.

LM2576-3.3WT Features

• Fixed Output Voltage: The LM2576-3.3WT offers a fixed output voltage of 3.3V, ensuring consistent power delivery without the need for external feedback components.
• Wide Input Voltage Range: With an input voltage range of 4V to 40V, this regulator can handle a variety of input sources, making it suitable for applications with fluctuating input voltages.
• High Output Current: Capable of delivering up to 3A of output current, the LM2576-3.3WT is well-suited for high-current applications, ensuring reliable power supply even under heavy loads.
• Buck Topology: Utilizing a buck converter topology, this regulator achieves high efficiency and low power loss, which is crucial for maintaining performance and reducing heat generation.
• Low Switching Frequency: The 52kHz switching frequency offers a balance between efficiency and noise, making it suitable for applications where both performance and low electromagnetic interference (EMI) are important.
• Through-Hole Mounting: The TO220-5 package is designed for through-hole mounting, providing excellent thermal performance and mechanical stability, which is essential for high-reliability applications.
• Compliance and Safety: The LM2576-3.3WT is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of manufacturing environments.

LM2576-3.3WT Applications

The LM2576-3.3WT is ideal for a variety of applications where a stable 3.3V supply is required. Some specific use cases include:

• Embedded Systems: Providing a reliable power supply for microcontrollers, sensors, and other embedded components that require a stable 3.3V input.
• Telecommunications: Used in base stations and networking equipment where high efficiency and low noise are critical.
• Industrial Automation: Suitable for PLCs, motor controllers, and other industrial equipment that demand robust power solutions.
• Consumer Electronics: Ideal for powering devices such as routers, modems, and other consumer electronics that require a stable 3.3V supply.
• Automotive Applications: Given its wide input voltage range and robust design, it can be used in automotive systems where the input voltage can vary significantly.

Conclusion of LM2576-3.3WT

The LM2576-3.3WT stands out as a reliable and efficient fixed-output voltage regulator, offering a stable 3.3V supply with a maximum output current of 3A. Its wide input voltage range, high efficiency, and robust design make it an excellent choice for a variety of applications, from embedded systems to industrial automation. The through-hole mounting and compliance with environmental and safety standards further enhance its versatility and reliability. For engineers and designers seeking a high-performance, low-noise solution for their power supply needs, the LM2576-3.3WT is a top contender.

LM2576-3.3WT Documents

Download datasheets and manufacturer documentation for LM2576-3.3WT

Datasheets :

LM2576      

PCN Packaging :

Packing Changes 10/Oct/2016      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH