This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 5 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Features

Input voltage:
4.5 V to 40 V for the version that outputs 3.3 V
[output voltage dropout voltage] to 40 V for output voltages of 5 V and higher (see below for more information on dropout voltage)
Fixed 3.3 V, 5 V, 6 V, 7.5 V, 9 V, or 12 V output (depending on regulator version) with 4% accuracy
Typical maximum continuous output current between 5 A and 20 A
Typical efficiency of 80% to 95%, depending on input voltage, output voltage, and load
Integrated reverse-voltage protection, over-current and short-circuit protection, over-temperature shutoff, undervoltage lockout, and soft-start
Typical no-load quiescent current of 100 mA ; this can be reduced to approximately 5 µA to 10 µA per volt on VIN by disabling the board
“Power good” output indicates when the regulator cannot adequately maintain the output voltage
Compact size: 1.7″ × 1.25″ × 0.43″ (43.2 mm × 31.8 mm × 11 mm)
Four 0.086″ mounting holes for #2 or M2 screws