I would like to use standalone voltage regulator such as LM5008 to power 3 x 356A for up to 18 cells lifePo4 battery, with mcu and some other communication module, beeper, it is likely consume 30mA.
i can use small linear voltage regulator like 15v to 5v and take power from cell 4 = ~ 15v, but this approach can caused pack imbalance especially when battery pack is in idle.
i can use switching regulator such as LM5008 and capable to handle 18 cell lipo ~ 66v to 5v power my mcu circuit as shown attached.
however with this approach i damaged few regulator when connect power to top 536A (#3 ic), i am not sure if connect like this has issues ?
please help ! 