Stable buck/boost power conversion enables solar energy collectors, remote environmental monitors, and wearable technology to operate at continuous low voltages. Designed for engineers, hobbyists, and developers building selfpowered networks or energyefficient sensor systems. Features wide input voltage ranges, programmable MPPT optimization, and integrated battery management for charging supercapacitors. Compact design with undervoltage protections delivers a stable 2V5.5V output for lowpower applications in harsh environments. Benefits at a glance: reliable energy harvesting, extended operation in remote or rugged settings, and straightforward integration with diverse lowvoltage electronics. Practical use scenarios: Remote environmental monitoring station powered by solar energy, needing stable lowvoltage operation and efficient energy use. Wearable technology or prototypes that require continuous power from solar or harvestable sources in outdoor conditions. Selfpowered wireless sensor networks for agriculture or industrial monitoring, where energy efficiency and robust voltage regulation are critical.