The output voltage of the regulator can be changed by the ENx pin (voltage levels defined by the BUCKx_VOUT and BUCKx_FLOOR_VOUT registers) or by writing to the BUCKx_VOUT and BUCKx_FLOOR_VOUT registers. The voltage change is always slew-rate controlled, 3.8 mV/µs. During voltage change the forced-PWM mode is used automatically. When the programmed output voltage is achieved, the mode becomes the one defined by the load current and the BUCKx_FPWM bit in BUCKx_CTRL1 register.
The Power-Good interrupt is generated when the output voltage reaches the programmed voltage level, as shown in Figure 9.