• 300W DC-DC Buck Converter
  • 300W DC-DC Buck Converter
  • 300W DC-DC Buck Converter
  • 300W DC-DC Buck Converter
1 4

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300W DC-DC Buck Converter Module — 20A Max, Adjustable 1.2–36V (Input 6–40V) CC/CV - RS1831

300W DC-DC Buck Converter Module — 20A Max, Adjustable 1.2–36V (Input 6–40V) CC/CV - RS1831

RS1831

1232 in stock

Rs. 499.00
Rs. 499.00
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Delivery Time

  • Delivery time with the Express Shipping option is 2-3 working days, and with the Standard Shipping option is 5-6 working days. It varies based on location, reliant on courier services.

  • Delivery time if the order item is on Preorder Status is 15-20 working days.

COD (Cash on Delivery)

  • For COD you have to pay extra charges of Rs 350/- before the shipment. (We will share the company QR Code, UPI ID or Account details for the same)
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Description:

High-power, adjustable DC-DC buck converter module rated up to 300W / 20A. Wide input range and CC/CV operation make it ideal for LED drivers, lithium battery charging, bench supplies, and embedded power solutions. 

Specifications:

  • Input Voltage: DC 6-40V (10V to 40V is suggested)
  • Output Voltage: DC 1.2-36V
  • Output Current: 20A(max.), 15A (suggested)
  • Efficiency: 97% (24V to 12V, 20A)
  • Output Ripple: ≤50mV
  • Wiring Method: Terminal
  • Short Circuit Protection: Self-recovery (cannot short circuit for a long time)
  • Terminals: Large current screw terminals (30A rated on many modules) for IN/OUT connections.
  • Typical Size: PCB with heatsinks. 

Features:

  • Wide input voltage: DC 6–40V (recommended 10–40V for best performance).
  • Adjustable output: 1.2–36V DC, settable via onboard potentiometer.
  • High current: 20A max output (manufacturers commonly advise ~15A continuous without extra cooling).
  • High efficiency: Up to 95–97% under favorable conditions (example: 24V → 12V tests).
  • Constant Current / Constant Voltage (CC/CV) operation for LED driving and battery charging.
  • Protection features: short-circuit / over-current protection (self-recovery), thermal protection recommended.

  • Robust construction: large MOSFETs and large screw terminals for high current wiring; often supplied with heat sinks.

Applications / Use Cases:

  • LED strip / high-power LED driver (use CC mode).
  • Lithium / Li-ion battery charging (use CC/CV with proper charge profile & safety interlocks).
  • Bench variable power supply for electronics testing.
  • Robotics, embedded systems, motor drivers (with proper filtering & cooling).

Usage & Safety Recommendations (important):

  • Set voltage with no load first. Always adjust to the desired voltage without a load connected, then set current limit before connecting the load.
  • Cooling: at high currents (>10–15A) use a large heatsink and forced airflow (fan). Continuous 20A operation without adequate cooling can overheat the module or reduce lifespan.
  • Wire gauge: use heavy gauge cables for input/output (rated for the expected current) and secure screw terminals tightly.
  • Protection: do not permanently short the output; module protection is self-recovering but repeated abuse will damage components.

Pin Description:

  • VO+: output positive
  • VO-: Negative output
  • +IN: Enter the positive polarity
  • -IN: Input the negative pole
  • CV: Output voltage adjustment
  • CC: Output current adjustment
  • EN: Enable, low voltage level shut off output; suspension, high voltage level is effective

Package Included:

  • 1 x 300W DC-DC Buck Converter Power Module Output Adjustable 20A Max DC-DC 6-40V Step Down to 1.2-36V