I’m currently working on a project using 24 leds ws2812b and 5 max7219 and a wemos d1 mini to control them. But i ran into a problem : powering the circuit. I have two 3,7v lipo 4000mah and i wanted to use them. But lipo voltage is too low so i need to find a way to bring the voltage to 5v. I think step up module should do the job but the whole current can go up to 3A ( 1,5 A for leds and 1,5A for max7219 ) and i want extra safety but most of those step up module are rated for less than that so I come up with this circuit to split the current into 2 step up modules but I have no idea if this is going to work. I would be delighted if someone could help me.
Looking at your schematic I think that can work.
As you have two lipo's, alternatively you could consider to put them in series and then use one bigger step down converter to make your 5V.
Yes, as long as you use the two boost regulators to drive different things, it should work. You just don't want to connect the outputs of the regulators together.
But the Nano should not be powered through the Vin pin. You would connect to its 5V pin.
