Power consumption starts out reasonable, then ramps to unacceptable levels

[howard n2wx]

So I can live with the 60uA power draw I get shortly after a power cycle but the strangest thing happens.  Over a short period of time the power consumption ramps up to, well take a look:

This page https://devzone.nordicsemi.com/b/blog/posts/optimizing-power-on-nrf52-designs has good ideas for troubleshooting power issues but leaves me wondering just how do I figure out which peripherals are being turned on (and left on)?  The power controls aren't documented (except for the NFCT and that only via the forum).

Any ideas?

[howard n2wx]

It turned out (as I suspect typical) the current draw was from other hardware on the board, ironically, hardware surrounding the pfet I use to switch the st75256 and backlight booster.