I managed to kill my DPS3005.
I tracked down the fault to a N-Channel Power MOSFET (part marked AO4264E) located right before the supply ground terminal. Upon unsoldering the SOIC package, it fell apart into two pieces (shown in photo).
For those that don't know, these things have four terminals marked in sequence (Vin+, Vin-, Vout-, Vout+). I've attached a diagram of the portion of the circuit in question. I think the mode of death was probably creating a short through Vin- and Vout- (too many test leads with the same color
)
What I'm confused about is that the MOSFET is hooked up "backwards". My best guess is that the MOSFET is being used as a sense resistor for the current shunt? I thought MOSFETs weren't very good for this kind of use?