9V, 2.9A Step-Down Voltage Regulator D30V30F9 Category_Arduino/LilyPad Arduino [Arduino buying guide](https://www

[Arduino buying guide](https://www

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making it simple to interface the board with 5 V systems

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9V, 2.9A Step-Down Voltage Regulator D30V30F9 Category_Arduino/LilyPad Arduino [Arduino buying guide](https://wwwThis small synchronous switching step down (or buck) regulator takes an input voltage of up to 45 V and efficiently reduces it to 9 V. The board measures only 0. 7 0. 8 yet delivers typical maximum continuous output currents between 2 A and 3. 5 A , depending on the input voltage. An optional enable input can put the regulator in a low power state with a current draw of 10 A to 20 A per volt on VIN. The regulator also features reverse voltage