Pololu Step-Down Voltage Regulator - 24V, 4A

The Pololu D42V55F24 is a compact synchronous step-down (buck) switching regulator that takes input voltages from 24 V up to 60 V and delivers a tightly regulated 24 V output at up to 4 A. A step-down converter reduces a higher input voltage to a lower output voltage while increasing available current and doing so much more efficiently than a linear regulator; this means less heat and better energy use in high-difference applications.The board supports a typical continuous output current that ranges from 2.5 A to 5 A depending on input voltage and thermal conditions. Efficiency is high—around 90% to 95% varying with load input and output voltage. It operates at approximately a 400 kHz switching frequency under heavy loads with very low quiescent current at no load.As with other D42V55Fx regulators it includes input reverse-voltage protection over-current protection thermal shutdown and soft-start to limit inrush current. The module measures 1″ × 1″ × ~0.355″ (25.4 × 25.4 × 9 mm) and includes three mounting holes for #2 or M2 screws along with six 0.1″ grid-compatible connections (VIN VOUT GND VRP EN PG) and duplicated power rails for easy prototyping.