Pololu 15V, 500mA Step-Down Voltage Regulator D24V5F15

The compact (0.4" × 0.5") D24V5F15 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 15 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 90% and 95% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 15 V. The pins have a 0.1" spacing, making this board compatible with standard solderless breadboards and perfboards.