SPRUJ59A April 2024 – September 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
Both F28003x and F28P55x supports internal and external VREG for the 1.2V supply selectable using the VREGENZ pin. However, not all packages of F28003x support the external VREG option. For F28P55x all packages have a VREGENZ pin.