The LM2574N-5G from ON Semiconductor is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator capable of driving a 0.5A load with excellent line and load regulation. This fixed output voltage regulator is designed to minimize the number of external components, simplifying the power supply design and providing high-efficiency solutions for a wide range of applications.

Key Features

• Output Voltage: Fixed 5V output with a high precision of ±4% over line and load conditions.
• Current Output: Capable of delivering 0.5A output current.
• High Efficiency: Simple high-efficiency step-down (buck) regulator with a typical efficiency of 77%.
• Thermal Shutdown: In-built thermal shutdown feature provides protection against over-temperature conditions.
• Frequency Operation: 52 kHz fixed frequency internal oscillator.
• Voltage Protection: Overvoltage protection ensures the device remains safe under extreme operating conditions.
• Package: The LM2574N-5G is available in a standard 8-pin PDIP package.

Applications

The versatility of the LM2574N-5G makes it ideal for a wide array of applications, including:

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

Product Advantages

The LM2574N-5G is designed to offer a compact, efficient, and robust solution for power supply requirements. Its ability to support a wide input voltage range and maintain a stable 5V output makes it a reliable choice for designers. With features like thermal shutdown, current limiting, and the capability to withstand a wide range of temperatures, the LM2574N-5G ensures safety and reliability in operation.

Ordering Information

For ordering the LM2574N-5G or obtaining samples, please visit the ON Semiconductor website or contact your local sales representative for further assistance.