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Need a max. voltage of 3.3 V for your programming board or sensor? This buck regulator by Pololu takes an input voltage of up to 50 V and reduces it to a voltage and continuous output current of 3.3 V and 3.6 A.
This regulator generates a voltage of 3.3 V with 4% accuracy. It has a typical efficiency of 80 to 90%, depending on the input and output voltage and load. It’s a switching regulator, meaning it’s efficient even when the input voltage level is much higher than the output voltage.
The D36V28F3 buck regulator can also be put in a low-power state, with a current draw of 10 to 20 µA per volt. And it has reverse polarity protection.