{"title":"20W Adjustable DC-DC Buck Converter with Digital Display","handle":"20w-adjustable-dc-dc-buck-converter-with-digital-display","url":"/products/20w-adjustable-dc-dc-buck-converter-with-digital-display","description":"A 20W adjustable DC-DC buck converter module based on the LM2596 step-down regulator, featuring a built-in digital display that shows the output voltage in real time. Adjust the output from 1.25V to 37V using the onboard potentiometer — no multimeter needed. Wire terminals mean no soldering is required.\n\nThe module supports self-calibration for high-precision voltage output, and the display can toggle between input and output voltage readings or be turned off entirely. Ideal for creating adjustable power supplies, stepping down vehicle power, or powering electronics from higher-voltage sources.\n\nKey Features\n\n\nBuilt-in Digital Display – Real-time voltage readout, switchable between input and output\n\nAdjustable Output – 1.25V to 37V via onboard potentiometer\n\nSelf-Calibration – One-time calibration stored automatically\n\nWire Terminals – Screw terminals, no soldering needed\n\nProtection Circuitry – Reverse polarity, overheating, and short-circuit protection\n88% Average Efficiency\n\n\nSpecifications\n\n\nInput Voltage: 4.0–40V DC\n\nOutput Voltage: 1.25–37V (input must be ≥1.5V higher than output)\n\nOutput Current: 3A max (recommended ≤2A without heatsink)\n\nOutput Power: 20W (heatsink recommended above 15W)\n\nVoltage Accuracy: ±0.05V\n\nRegulator IC: LM2596\n\nDimensions: 66 × 36 × 12mm\n\nMounting Dimensions: 61 × 31mm\n\nWeight: 22g\n\n\nIdeal For\n\nDIY adjustable bench power supplies\n12V to 5V or 3.3V step-down for electronics\n24V vehicle power to USB/device voltage\nSolar panel voltage regulation\nBattery-powered projects requiring specific voltages\n\n\nPackage Contents\n\n1× 20W Adjustable DC-DC Buck Converter with Digital Display\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":13869,"title":"Default Title","sku":"DF-DFR0379","price":8.3,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":487,"option1":"Default Title"}]}