voltaj fix

Submitted by Yusuf on

I have Esp01s. I want to get a constant voltage between 3.0 and 3.6 with 3 alkaline batteries. The voltage of 1 alkaline battery is 1.5 volts. What is your suggestion?

In series 3 LDO will produce 3x1.5V = 4.5V.

Use an LDO of 3.3V.

  Joined February 12, 2018      696
Monday at 02:11 PM

Over time, the battery's voltage decreases. If the voltage drops below 3.3, for example 1.7v. What should I do?

  Joined May 06, 2020      1
Wednesday at 05:34 AM

1.7-4.5V Input to 3.3V output buck-boost switching regulator with more than 85% efficiency.

  Joined February 12, 2018      696
Monday at 02:11 PM