Hi team.
I manufactured a board with the attached schematic.
There is a difference in the resistance value of LM61460 "between output (TP1901/VMAIN) and GND" even though they were manufactured in the same lot.
Case A) Vmain <=> GND : 35-50ohm
Case B) Vmain <=> GND : 60k to 100kohm
Can you think of any reason for this?
Note that VMAIN outputs 5V in both cases as configured.
best regards.