Looking at the LCP user manual (Page 1074) there is a line that says "The supply voltage VDD must be equal or lower than VDDA." I can find no similar statement in the datasheet; Table 12 (p. 79) gives the VDDA range as 2.7 - 3.6 V, making no mention of VDD.
Hi
Please follow the UM statement of “The supply voltage VDD must be equal or lower than VDDA.”
Exceeding of operating requirements may lead in device malfunction (reversible) or reduce life.
Best Regards
Jun Zhang