300W 20A DC-DC Buck Converter – Adjustable Step-Down Voltage Regulator 6V-40V to 1.2V-36V

Overview

The 300W 20A Buck Converter is a high-current powerhouse designed for demanding electrical loads. It features Constant Voltage (CV) and Constant Current (CC) adjustment, making it not just a regulator, but a full-blown battery charger and LED driver. Whether you are stepping down a 24V truck battery to 12V or driving high-wattage COB LEDs, this module remains stable and cool thanks to its massive dedicated aluminum heatsinks.

Key Features

• Synchronous Rectification: Dramatically reduces heat and increases efficiency (up to 96%).

• Dual Adjustment Knobs: Dedicated potentiometers for both Voltage and Current limiting.

• Massive Current Support: Handles up to 20A (peak), allowing you to power heavy-duty DC motors or large LED strips.

• Low Ripple Output: Includes high-frequency, low-resistance electrolytic capacitors for clean power delivery.

• Short Circuit Protection: Features self-recovery protection (Note: Do not short circuit for extended periods at max current).

Technical Specifications

Ideal Applications

• High-Power LED Driver: Safely drive 50W or 100W LED chips using the Constant Current (CC) mode.

• Battery Charging: Ideal for charging Lithium, Lead-Acid, or Ni-Cd packs from a higher voltage source.

• Solar Regulator: Step down high-voltage solar panel output to a steady battery-charging voltage.

• Vehicle Power: Power 12V appliances in a 24V bus or truck.