SPRUJ53A April 2024 – June 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
The TMS320F28P55x MCU supports both internal generation of the 1.2V rail for single-supply operation or externally supplied 1.2V into the device. The internal VREG is controlled using the VREGENZ pin: if enabled, the 1.2V rail is generated by the device; if disabled, the 1.2V rail is supplied from an external source. For more details, see TMS320F28P55x Real-Time Microcontrollers.