2 LDOs, built-in POR, oscillator, references 750mV-17.5nA, ADC for supply voltage monitoring. supply voltage range 1.2V – 3.6V, current consumption below 4?A in active mode.
CM1311bg Ultra Low Power PMU
CM1312ff Ultra Low Power PMU
Built-in:1.8V shunt regulator, 1.17V BandGap, 15.5nA current reference, 2Mhz Oscillator, POR.
CM1313ff General Purpose PMU
1.8 linear regulator with termal shutdown and overvoltage protection, 2.7V linear regulator, POR.