{"title":"Pololu 5V, 5A Step-Down Voltage Regulator D24V50F5","handle":"pololu-5v-5a-step-down-voltage-regulator-d24v50f5","url":"/products/pololu-5v-5a-step-down-voltage-regulator-d24v50f5","description":"The Pololu D24V50F5 is a high-efficiency step-down (buck) voltage regulator that converts input voltages up to 38V down to a fixed 5V output. With a typical maximum output current of 5A and efficiency between 85% and 95%, it far outperforms linear regulators — especially when the input-to-output voltage difference is large.\n\nAt light loads, the switching frequency automatically adjusts to maintain high efficiency, with a typical no-load quiescent current under 1 mA. The ENABLE pin can further reduce quiescent current to approximately 10–20 µA per volt on VIN for low-power sleep states.\n\nKey Features\n\n\nOutput Voltage – Fixed 5V with 4% accuracy\n\nInput Voltage Range – (5V + dropout voltage) to 38V\n\nMaximum Output Current – Typically 5A (varies with input voltage and conditions)\n\nEfficiency – 85% to 95% typical, with automatic frequency adjustment at light loads\n\nSwitching Frequency – Approximately 600 kHz (drops at light loads for efficiency)\n\nQuiescent Current – Under 1 mA (no load); reducible via ENABLE pin\n\nBuilt-in Protection – Reverse-voltage, over-current, thermal shutdown, soft-start, and under-voltage lockout\n\nENABLE Pin – Drive low (under 0.6V) to enter low-power sleep state\n\nMounting – Two 0.086″ holes for #2 or M2 screws\n\nPin Spacing – 0.1″ (2.54mm), compatible with breadboards and standard connectors\n\nDimensions – 17.8 × 20.3 × 8.8mm (0.7″ × 0.8″ × 0.35″)\n\n\nConnections\n\n\nVIN – Input voltage (4.5V to 38V; effective minimum is VOUT + dropout voltage)\n\nVOUT – Regulated 5V output\n\nGND – Ground (2 pins)\n\nEN – Enable pin (pulled high by default via 100 kΩ resistor; leave disconnected if not needed)\n\n\nIdeal For\n\nBattery-powered projects requiring regulated 5V\nRobotics and motor driver power supplies\nRaspberry Pi and single-board computer power from higher-voltage sources\nAny application needing efficient voltage step-down\n\n\nPackage Contents\n\n1× D24V50F5 step-down voltage regulator\n1× 5-pin straight male header strip\n1× 5-pin right-angle male header strip\n","vendor":"Pololu","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":9068,"title":"Default Title","sku":"PL-2851","price":25.55,"compare_at_price":0.0,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}