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https://docs.pycom.io/.gitbook/assets/l01-pinout.pdf says: 3V3 pin: Supply with a stable 3V3 power source capable of delivering at least 650mA

@sslupsky AFAIK, the enable pin is not accessible.

@jcaron Yeah pretty sure it's in deep sleep at that moment. This +50mA is constant in deepsleep but also in normal state. So for example it draws 160-170mA instead of 110-120mA on the other LoPy with the same configuration and program. And in sleep it consumes 50mA while the other one around 0.215mA. It might be a simple mismanipulation but it's still strange that it's exactly 50mA. On the next prototype I will try to check the consumption before seding it as a test just to be sure.

I can confirm @River is correct, the LDO automatically switches modes, there is no GPIO pin involved in this

@miroslav-petrov said in Voltage regulator for primary battery: LTC3335 But it is quite expensive or maybe i am looking wrongly...