Hi,
When I run AC analysis on the WCA PSpice project on the TPS7H1101A-SP product page, I get a 0 degree crossing around 750 Hz, accompanied by 49 dB of gain. See the attached schematic and Bode plot. I believe this would be a predictor of an oscillation, because it suggests that there is gain at the frequency where changes at the injection point are in phase with VOUT.
But I'm also skeptical of the phase plot overall. Shouldn't the low-frequency phase be 180 degrees, which is typical for negative feedback? This is what is seen with other TI regulators. Can the WCA model be trusted?
Default WCA schematic:
WCA AC Result: