I am trying to power a NODEMCU board using a battery. I am using a TLV713P pin to regulate the voltage. Can I power a nodeMCU ESP 32 board using this regulated voltage by giving it to the 3v3 pin?
The TLV713 is a low-dropout regulator, means it's not boosting up the input voltage. So if you want to get 3.3V output you need your input to be 3.6V (assuming your NodeMCU needs 100mA). So you'd need 3x 1.2V batteries in series or 1x 3.6V battery to reach that voltage level.