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7809 - 9V Voltage Regulator is a commonly used voltage regulator integrated circuit in robotics projects. The regulator converts regulated or unregulated input voltages between 12V and 17V to regulated 9V output voltage. The maximum output current that 7809 - 9V Voltage Regulator provides is 1A. For projects that need high current outputs, it is recommended to use the IC with a heatsink.