DFRobot Micro Solar Power Manager with MPPT & 3.3V Regulated Output

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The DFR0579 Micro Solar Power Manager is an ultra-compact, high-efficiency solar power management module designed for low-power IoT applications, wireless sensors, and microcontrol lers. It integrates MPPT technology and comprehensive protection features to enable stable, maintenance-free solar energy harvesting from small panels (1V–3V). Ideal for eco-friendly IoT projects, it ensures prolonged device operation with minimal external intervention. ⚡ Features 🌞 MPPT Algorithm: Maximizes energy conversion efficiency even under low-light conditions. 🔋 Dual Charging Input: Supports solar (0.5V–4V) or USB power sources. ⚡ Stable Output: 3.3V/90mA regulated output for low-power devices (e.g., micro:bit, ESP32). 🛡️ Full Protection: Over-charge/over-discharge/reverse connection protection for batteries; short-circuit/over-current protection for outputs. 📦 Compact Design: 30mm × 30mm PCB, ideal for space-constrained applications. 📊 Parameters Parameter Value Solar Input Voltage 0.5V – 4.0V Battery Input 3.7V Lithium Battery Max Charging Current 70mA (Solar) / 100mA (USB) Regulated Output 3.3V @ 90mA Over-charge Protection 4.2V Over-discharge Protection 3.1V Quiescent Current Show more