While debugging issues powering the Nano via the 40-pin header of the Carrier Board I realized that the 3v3 regulator IC (U9) is not the MP2384 as is shown on the schematic.
I searched the markings of the IC (EM 5841C 0LC0017), but have been unable to attain a datasheet. Can anyone provide information on the 3v3 regulator (U9) used on the Nano Carrier Board?
I was not experiencing this issue powering via the 40-pin header on some units that were unboxed several months ago. In case anything changed in the design/manufacturing of the carrier board: the serial number for the carrier board is 1422619051620.
Hi, there are two kinds of chips. One is EM5841CVT from Excelliance MOS Corporation for A02 board, one is MP2384 for B01 board (as listed in BOM in DLC).