This reference design is an automotive power supply for C2000™ generating two output voltage rails from a nominal 12-V battery. LMR23630-Q1 converts the input voltage into a regulated 3.3-V rail; TPS628501-Q1, supplied by the first output, generates a 1.2-V output rail. Both converters are operating in forced pulse-width modulation (FPWM), to minimize output ripple and optimize load transient response. All the tests were done on the PMP31047 revision B board.