Step-Down Voltage Regulator D36V50F5 - 5V 8A - Botland - Robotic Shop
2121 - Pololu 5V Step-Up/Step-Down Voltage Regulator S10V4F5 , from Pololu for €4.71
AP63203 - step-down Buck voltage regulator with screw connector - 3,3V 2A - SparkFun COM-18356 Botland - Robotic Shop
This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board
Pololu 5V, 2.5A Step-Down Voltage Regulator D24V25F5
Step-Down Voltage Converter D36V28F12 - 12V 2,4A Botland - Robotic Shop
Pololu Step-Down Voltage Regulator D24V90F5 - 5V Botland - Robotic Shop
Module with adjustable voltage regulator LM317 1.2-37V 1.5A - Kamami on-line store
Pololu Step-Down Voltage Regulator D24V25F5 - 5V Botland - Robotic Shop
Pololu 3.3V, 1A Step-Down Voltage Regulator D24V10F3 - Kamami on-line store