The LM2574HVN-5.0 is a monolithic integrated circuit from Texas Instruments, designed to provide a straightforward and efficient solution for step-down voltage regulation. This robust and reliable component is part of the LM2574 series, which offers fixed and adjustable output versions capable of driving a 0.5A load with excellent line and load regulation.

Key Features

• Output Voltage: Precisely regulated 5.0 V output with a tolerance of ±4% over line, load, and temperature variations.
• Current Rating: Capable of delivering up to 500 mA of output current.
• High Efficiency: Utilizes a simple and efficient buck converter (step-down) design, which can operate at up to 52% duty cycle, minimizing power loss.
• Thermal Shutdown: In-built thermal shutdown feature provides protection against excessive power dissipation and junction temperature.
• Wide Input Range: Can handle input voltages from 4.75 V to 60 V, making it suitable for a variety of applications, from simple consumer electronics to complex industrial systems.
• 52 kHz Fixed Frequency Oscillator: The fixed frequency oscillator reduces the need for external components and simplifies the design.
• Package: Available in a reliable TO-220 package that is suitable for through-hole mounting, providing a robust mechanical and thermal performance.

Applications

The LM2574HVN-5.0 is versatile and can be used in a wide array of applications, including:

• Simple high-efficiency step-down (buck) regulators.
• Efficient pre-regulation for linear regulators.
• On-card switching regulators for elimination of noise and distribution problems associated with single-point regulation.

Quality and Reliability

As with all Texas Instruments products, the LM2574HVN-5.0 is manufactured to the highest quality standards, ensuring reliability and performance in demanding applications. The device is characterized for operation from -40°C to +125°C, providing confidence for use in industrial environments.