onsemi

LM2574N-5G

LM2574N-5G Description

The LM2574N-5G from onsemi is a fixed 5V output switching voltage regulator designed for efficient step-down (buck) conversion in a wide range of DC power applications. This monolithic IC integrates a 52kHz oscillator, high-efficiency switching circuitry, and protection features, delivering up to 500mA of continuous output current with input voltages ranging from 4.75V to 40V. Its through-hole 8-DIP package ensures robust mounting, while its non-synchronous rectification architecture simplifies design. The regulator is RoHS3 compliant and REACH unaffected, making it suitable for environmentally conscious designs.

LM2574N-5G Features

• Fixed 5V Output: Eliminates the need for external feedback resistors, reducing component count.
• Wide Input Range (4.75V–40V): Supports diverse power sources, including automotive and industrial supplies.
• High Efficiency (Up to 80%): Minimizes heat dissipation compared to linear regulators.
• Low Standby Current: Ideal for battery-powered applications.
• Built-in Protection: Includes thermal shutdown and current limiting for enhanced reliability.
• 52kHz Switching Frequency: Balances efficiency and noise, reducing filter requirements.
• Positive or Negative Output Configuration: Offers flexibility for step-down or inverting designs.

LM2574N-5G Applications

• Embedded Systems: Powering microcontrollers, sensors, and low-power peripherals.
• Automotive Electronics: Suitable for infotainment, dashboards, and 12V/24V systems.
• Industrial Controls: Reliable operation in PLCs, motor drivers, and instrumentation.
• Consumer Electronics: Used in set-top boxes, routers, and portable devices.
• Negative Voltage Generation: Configurable as an inverting regulator for dual-supply systems.

Conclusion of LM2574N-5G

The LM2574N-5G stands out for its simplicity, efficiency, and versatility, making it a preferred choice for designers needing a compact, high-performance switching regulator. Its wide input range, robust protection, and fixed 5V output reduce design complexity while ensuring stable power delivery in demanding environments. Whether for automotive, industrial, or consumer applications, this regulator offers a cost-effective and reliable solution.