input voltage for esp32-s2-saola-1

RobLatour
Posts: 12
Joined: Mon Dec 30, 2019 4:23 am

input voltage for esp32-s2-saola-1

Postby RobLatour » Sat Jul 18, 2020 8:26 pm

Can anyone confirm the input voltage range for the esp32-s2-saola-1 board; wondering if it can handle 7.5v in?

ESP_Sprite
Posts: 9709
Joined: Thu Nov 26, 2015 4:08 am

Re: input voltage for esp32-s2-saola-1

Postby ESP_Sprite » Sun Jul 19, 2020 12:15 pm

According to the schematics, that board uses a sgm2212-3.3. According to the datasheet of that board, it can handle up to 20V of input voltage. It, however, needs to convert the difference between the input voltage and the output voltage into heat (as it's a linear regulator), so the thing you may need to worry about is how hot it gets... datasheet says it has thermal shutdown, so it won't blow anything up, but I'd keep an eye on that.

RobLatour
Posts: 12
Joined: Mon Dec 30, 2019 4:23 am

Re: input voltage for esp32-s2-saola-1

Postby RobLatour » Tue Jul 21, 2020 9:40 pm

thank you, that was very helpful.

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