This work is made by MT3608. The input voltage of this chip is 2-24v, the maximum output is 28v, the current can be 2a, and it is compact! , this design module is only 9.78x12.83mm! ! ! Fingernail size, the voltage can be adjusted through the r2r3 resistor
I found that I didn’t buy a resistor. . . . . . I clearly remember placing the order, but I don’t have any resistor adapters on hand. I can’t test it at the moment.
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