Pololu Adjustable 4 12V Step Up Step Down Voltage Regulator S18V20ALV hub motoren The U3V70F9 regulator is smaller WSS 08 The U3V70F9 regulator is smaller and can deliver more current 5 V to 30 V voltage range and is efficient enough to deliver a continuous 17 A without a heat sink This powerful step up step down regulator efficiently produces an adjustable 4 V to 12 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90% Its ability to convert both higher and lower input voltages makes it useful for applications where the power supply voltage can vary greatly