EC Buying 10Pcs Mini560 DC-DC Buck Converter Module 5A 9V Output, Step Down Voltage Regulator Board 11V–20V Input, Synchronous Rectification Power Supply Module

["This DC‑DC buck converter provides a fixed 9V output designed for powering devices that require stable intermediate voltage levels. It supports an input voltage range from 11V to 20V and maintains regulation when the input voltage exceeds the required differential margin.","The module supports output current up to 5A under proper thermal conditions. For continuous operation above 4A, additional heat dissipation is recommended to help maintain stable performance and operating temperature.","Using synchronous rectification and a switching frequency of approximately 500kHz, the module achieves high conversion efficiency. This design helps reduce power loss and supports efficient operation in compact power systems","The switching regulation architecture provides relatively low output ripple and low noise, supporting stable operation of electronic circuits such as control boards, communication modules, and embedded power systems.","The compact PCB layout allows integration into space‑constrained applications. The non‑isolated buck topology is suitable for DC step‑down voltage regulation in embedded electronics, industrial control, and portable systems."]