ON Semiconductor LM2574N-5.0 Simple Switcher Step-Down Voltage Regulator

The LM2574N-5.0 from ON Semiconductor is a highly efficient, monolithic integrated circuit designed for voltage step-down conversion. This regulator is part of the SIMPLE SWITCHER® family, renowned for its ease of use and robust performance. The device is capable of driving a 0.5A load with excellent line and load regulation.

Key Features

• Output Voltage: The LM2574N-5 provides a fixed output voltage of 5V, which is suitable for a wide range of applications, including embedded systems, peripherals, and microcontroller power supplies.
• Current Capacity: This regulator can deliver up to 500mA of continuous output current, making it a versatile choice for moderate power needs.
• High Efficiency: With a typical efficiency rate of up to 77%, the LM2574N-5 minimizes power loss, making it ideal for battery-powered and energy-sensitive applications.
• Wide Input Voltage Range: The device operates over a wide input voltage range from 4.75V to 40V, accommodating a variety of power sources and fluctuating input conditions.
• 52 kHz Fixed Frequency Internal Oscillator: The built-in oscillator ensures a stable switching frequency, reducing the need for external components and simplifying the design process.
• Thermal Shutdown and Current Limit Protection: These built-in safety features protect the device from damage due to overheating and overcurrent conditions, ensuring reliable operation under various conditions.

Applications

The LM2574N-5.0 is suitable for a range of applications, including:

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converter (Buck-Boost)

Package and Quality

The device is available in a standard 8-pin PDIP package, which is easy to handle and compatible with common PCB layouts. ON Semiconductor is committed to high-quality standards, and the LM2574N-5.0 is no exception, offering reliable performance for a wide range of industrial and commercial applications.

With its robust feature set and proven reliability, the LM2574N-5.0 from ON Semiconductor is an excellent choice for designers looking for a simple and efficient solution to their voltage regulation needs.