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What is 3.3V Vref in this circuit design of A6986? Do I need to supply 3.3V to this pin?
I want 9-30V to 8V and I don't have any 3.3V voltage in my circuit. Is it okay if I don't connect anything here?
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Welcome, @LTunc.1, at the community!
The VREF pin is an output and can be used to supply external circuitry with a reference voltage of 3.3 V + -3%, max 5mA, as stated in the datasheet, table 4.
So no, you don't need to apply a 3.3V voltage to this pin, you are not allowed to either.
Good luck!
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/Peter
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