load switch indicator dimly illuminated

[mossmann]

D4 is dimly lit when Jasmine is charging with load switch SW1 turned off. This happens when charging from Azalea's USB port but not when charging from Jasmine's USB port. I assume this is due to reverse leakage through D2, but that would be good to test.

[mossmann]

If this issue persists with D2 removed, it might be caused by leakage from VBAT.

[yhetti]

Hopefully this will be fixed by adding the LDO. (issue #15)

[mossmann]

We measured current through LED at 0.5 mA (rev3). Raising the forward voltage of the LED by changing it from red to yellow or green may help.

[mossmann]

Removing D2 did stop D4 from turning on dimly, so this seems to be caused by reverse leakage through D2.