Texas Instruments

LM2577T-12  

DC Switching Voltage Regulators

LM2577T-12 Description

The LM2577T-12 is a fixed output voltage regulator from Texas Instruments, designed to deliver a stable 12V output at a maximum current of 3A. This regulator is part of the SIMPLE SWITCHER® series, known for its ease of use and high performance in power management applications. The LM2577T-12 operates within an input voltage range of 3.5V to 40V, making it suitable for a wide variety of power supply designs. Its switching frequency is set at 52kHz, ensuring efficient power conversion with minimal noise. The regulator supports both positive and negative output configurations, offering flexibility in circuit design.

LM2577T-12 Features

• Fixed Output Voltage: The LM2577T-12 provides a stable 12V output, ideal for applications requiring a consistent power supply.
• Wide Input Voltage Range: With an input voltage range from 3.5V to 40V, this regulator can handle a variety of input sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 3A of output current, the LM2577T-12 is suitable for applications with high power demands.
• Switching Frequency: The 52kHz switching frequency ensures efficient power conversion while minimizing electromagnetic interference (EMI).
• Output Configuration Flexibility: Supports both positive and negative output configurations, providing design flexibility.
• Topology Versatility: Compatible with boost, flyback, and forward converter topologies, making it suitable for a range of power conversion architectures.
• Through Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into printed circuit boards.
• Obsolete Status: While the LM2577T-12 is marked as obsolete, it remains a reliable choice for legacy systems and applications where its specific features are required.

LM2577T-12 Applications

The LM2577T-12 is well-suited for a variety of applications where a stable and efficient power supply is crucial. Some specific use cases include:

• Industrial Control Systems: Provides a reliable power source for control boards and sensors in industrial environments.
• Telecommunications Equipment: Ensures stable power delivery for communication modules and base stations.
• Automotive Electronics: Suitable for automotive applications requiring a robust power supply with a wide input voltage range.
• Consumer Electronics: Ideal for powering devices such as routers, modems, and other consumer electronics that require a stable 12V supply.
• Medical Devices: Can be used in medical equipment where a stable power supply is essential for reliable operation.

Conclusion of LM2577T-12

The LM2577T-12 from Texas Instruments is a robust and versatile fixed output voltage regulator designed for high-performance power management applications. Its wide input voltage range, high output current capability, and flexible output configuration make it a valuable component for a variety of industrial, automotive, and consumer electronics applications. Despite its obsolete status, the LM2577T-12 continues to offer reliable performance and is an excellent choice for legacy systems and specific applications where its unique features are required.

LM2577T-12 Documents

Download datasheets and manufacturer documentation for LM2577T-12

Datasheets :

LM1577, LM2577      

HTML Datasheet :

LM1577, LM2577