The LM2576 series from Xinbole (LM2576-5.0, LM2576-12, LM2576-ADJ) is a high-efficiency step-down (buck) switching regulator designed for reliable DC-DC power conversion in industrial, automotive, and embedded electronic applications. Supporting input voltages up to 40V and delivering up to 3A output current, this IC provides robust and efficient voltage regulation with minimal external components, making it ideal for compact, high-performance power supply designs.
Built using advanced switching regulator technology, the LM2576 integrates a fixed-frequency oscillator, internal power switch, and comprehensive control circuitry for stable and efficient power conversion. While it does not internally use Schottky diode technology, it is typically paired with an external Schottky rectifier diode to achieve fast switching performance, low forward voltage drop (low VF), reduced conduction losses, and improved overall efficiency. This combination ensures excellent thermal performance and long-term system reliability even under high load conditions.
Compared to lower-current regulator series, the LM2576 provides significantly higher output current capability and improved thermal handling, making it suitable for demanding power applications. Its high efficiency greatly reduces heat dissipation compared to linear regulators, improving system longevity and performance.
Available in TO-220 and TO-263 package options, the LM2576 supports both through-hole and surface-mount PCB designs, offering flexibility for prototyping and mass production. It is widely used in DC-DC converters, industrial power supplies, automotive electronics, battery-powered systems, and embedded power regulation circuits. With its efficiency, reliability, and strong current capability, the Xinbole LM2576 series is a trusted solution for modern power electronics design.
Key Features:
- Input voltage up to 40V
- Output options: 5.0V, 12V, adjustable (ADJ)
- High output current up to 3A
- High-efficiency buck switching regulator
- Fixed 52kHz switching frequency
- Internal power switch included
- Excellent thermal and load regulation
- Available in TO-220 and TO-263 packages
Applications:
- DC-DC step-down power supplies
- Industrial control systems
- Automotive electronics
- Embedded power modules
- Battery-powered devices
- LED driver systems
- High-current switching regulators
