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12V to 5V to 3.3V 3A DC -DC buck Step Down module power supply board
Description Definition of three interfaces:P2 is the power 12V input interface: 12V 12V GND with GND withP3 is the output interface: (1) GND with GND with the ADJ SW 12V 12VP4 is the output interface: the SW GND with GND with the ADJ GND with GND with 5V 5V 3.3V 3.3V (1)(BENQ12V-5V-3.3V) DC-DC circuit board 12VDC transfer 5V to 3.3V power supply board, 12V to 5V 3.3V power supply board, use this board to access high-voltage test tube is very convenient, high-pressure section of the market are generally 12V power supply, you can use this to 12V, and 3.3V or 5V can do the switching signal (to be connected to increase the brightness, which can be accessed either 3.3V or 5V), so that you can light up the lamp can also be used in a number of brands on the power board is bad you can use this board to replace packing including 1x step down module
12V to 5V to 3.3V 3A DC -DC buck Step Down module power supply board