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RM44L520: single ADC operation of RM44L520APZT

Part Number: RM44L520

Hello,

I am working on supplying 3.3V to pin 46, VCCAD/ADREFHI.

In the datasheet in section 5.65 Power Consumption over Recommend Operating Conditions, Iccad and Iccerfhi are in different rows and state that the max current is 15mA and 3mA.

 My question is for single ADC operation is the max current the sum of those both currents?

 

My current LDO can only source 10mA.

Thanks!