MSP432P4x1xT devices can be programmed to operate with either an LDO or a DC/DC as the voltage regulator for the digital logic in the core domain of the device. The DC/DC offers significant boost in power efficiency for high-current high-performance applications. The LDO is a highly efficient regulator that offers power advantages at lower VCC ranges and in the ultra-low-power modes of operation.
The core operating voltage (output of the LDO or DC/DC) is automatically set by the device depending on the selected operating mode of the device (see Table 6-43 for more details). The device offers seamless switching between LDO and DC/DC operating modes and also implements a seamless DC/DC fail-safe mechanism.