300W 20A DC TO DC Voltage step-down conv
300W 20A DC TO DC Voltage step-down conv
Overview
300W 20A DC-DC Adjustable Step-Down Module is a high-power, non-isolated synchronous buck converter designed to step down a higher DC input voltage to a lower, highly regulated DC output. Equipped with Constant Current (CC) and Constant Voltage (CV) adjustment loops, this versatile circuit board is a staple for high-power LED arrays, multi-chemistry battery charging (such as solar or bench charging packs), and stepping down larger power reservoirs (like a 24V or 36V system) into standard 5V or 12V project lanes. [1, 2, 3, 4, 5, 6]
Specifications
Specification Baseline Performance Parameters Input Voltage Range6V to 40V DC (10V to 40V is recommended for optimal stability) Output Voltage Range1.2V to 36V DC (Continuously adjustable via CV potentiometer) Maximum Output Current20 Amps max (Requires active cooling for continuous high current loads) Continuous Current Rating15 Amps maximum recommended continuous draw with passive cooling Maximum Output Power300 Watts total continuous processing capacity
Key features
Replaces standard diodes with ultra-low-resistance MOSFETs, pushing operational conversion efficiency up to 96% and drastically minimizing power lost as waste heat. Features independent, multi-turn potentiometers that allow you to set a precise voltage cap (Constant Voltage) and a strict maximum amperage threshold (Constant Current) to prevent overloading downstream components. Built with rugged, high-voltage switching transistors mounted back-to-back to safely process continuous power up to 300 Watts without experiencing electrical breakdown