9V Step-Up Voltage Regulator U3V40F9 SF_Hubs/Clamps and different power ratings for

and different power ratings for the shunt resistance (the higher-power versions have twenty more resistors populated on the back side of the board)

because the 32U4 is handling the USB directly

which can provide up to 12kg

which can output up to around 3 A continuous and has reverse-voltage protection up to 20 V

and 232-485 converting functions and is 3

9V Step-Up Voltage Regulator U3V40F9 SF_Hubs/Clamps and different power ratings forThis compact (0. 60. 6) switching step up (or boost) voltage regulator efficiently generates 9 V from input voltages as low as 1. 3 V and handles continuous input currents up to 3. 5 A. ( Note: minimum start up voltage is 2. 7 V, but it operates down to 1. 3 V after that.) The pins have a 0. 1 spacing, making this board compatible with standard solderless breadboards and perfboards. Overview The U3V40Fx family of boost (step up) voltage regulators are