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Q: What is the operational voltage range for the ADuCM350 ?
The digital platform operates from 2.0V to 3.6V. The Digital LDO (High Power LDO) that supplies the digital domain operates to 2.0V.
The AFE is characterised and guaranteed from 2.5V to 3.6V.
In Back-Up mode - see Power Supplies Chapter in UG-587 - the part will operate down to 1.62V.
Q: What type of power management capability is on chip ?
A:Please review Power supplies chapter and Power Management chapter in product userguide UG-587 for details. It is designed to operate with direct connections to a battery - can handle battery insertion / battery removal etc.