I have a small board powered by a button cell battery. The voltage range for the microcontroller on the board is 1.9V to 5.5V, while a single battery provides 3V. This leads to quick battery depletion, so I'm considering using two button cell batteries with a total voltage of 6V and adding a diode for regulation. The diode I'm using is the one below. Is this diode made of silicon or germanium? Also, what is its voltage drop, and I'm unsure about its reliability with this setup.
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