Microchip Technology

LM2576-12BU  

DC Switching Voltage Regulators

LM2576-12BU Description

The LM2576-12BU is a fixed-output voltage regulator designed by Microchip Technology, offering a robust and efficient solution for power management applications. This IC operates within a wide input voltage range of 4V to 40V and delivers a stable 12V output at up to 3A of current. The regulator employs a buck topology, which ensures high efficiency and minimal power loss, making it suitable for a variety of electronic devices that require a reliable power supply.

LM2576-12BU Features

• Fixed Output Voltage: The LM2576-12BU provides a fixed 12V output voltage, eliminating the need for external voltage setting components.
• Wide Input Voltage Range: With an input voltage range of 4V to 40V, this regulator can accommodate a variety of power sources, enhancing its versatility.
• High Current Capability: Capable of delivering up to 3A of output current, the LM2576-12BU is well-suited for applications requiring high power.
• Efficient Buck Topology: Utilizing a buck topology, the regulator achieves high efficiency, reducing power loss and heat generation.
• Surface Mount Packaging: The TO263-5 package allows for surface mount assembly, facilitating compact and reliable designs.
• Moisture Sensitivity Level: With an MSL rating of 3 (168 hours), the LM2576-12BU is suitable for manufacturing processes that may expose components to moisture.
• Switching Frequency: The regulator operates at a switching frequency of 52kHz, ensuring stable performance and minimal noise.
• Positive Output Configuration: The regulator provides a positive output configuration, which is commonly required in many electronic systems.

LM2576-12BU Applications

The LM2576-12BU is ideal for a range of applications that demand a stable and efficient power supply. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles, where a stable 12V supply is necessary.
• Automotive Electronics: Suitable for automotive applications where a wide input voltage range is required to accommodate varying battery voltages.
• Industrial Equipment: Can be used in industrial control systems, sensors, and actuators that require a reliable power source.
• Telecommunications: Ideal for powering communication modules and base stations that need a stable and efficient power supply.

Conclusion of LM2576-12BU

The LM2576-12BU from Microchip Technology is a versatile and efficient power management IC designed to provide a stable 12V output at up to 3A. Its wide input voltage range, efficient buck topology, and surface mount packaging make it an excellent choice for a variety of applications, from consumer electronics to industrial equipment. While the product is now obsolete, its unique features and performance benefits continue to make it a valuable component for existing designs. For new projects, engineers may consider exploring alternative models that offer similar or enhanced capabilities.

LM2576-12BU Documents

Download datasheets and manufacturer documentation for LM2576-12BU