SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The device relies on an external supervisor to ensure that the device external supplies (3.3V, 1.2V) are within range before releasing the reset to the device (PORz pin). Once the PORz is deasserted, the LDO to generate 1.8V analog is enabled.
The POR module monitors internally 3.3V, 1.2V external power supply as well internal 1.8V LDO and 0.9V bandgap voltages before internal reset is released to the system.