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INA240: How much current might INA240A2PWR consume in a 3.3V design when in application of sensing 12V motor current flow?

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Part Number:INA240

Hi 

I'm encountering some issues 

I'm wondering how much current INA240A2PWR consumes when it is used in a 12V motor current detection application.

Because the 3.3V LDO kept on burned down due to the possibility exceeding the power dissipation with SOT23-5 package (due to space limitation)

Sometimes I'm seeing around 25mA being drawn on the 3.3V while the other component only consumes 3mA. (There are only 2, INA240A2PWR and a MCU.)

So I'd like to understand how much current INA240A2PWR may consumes. Datasheet says it is 2.4mA quiescent. But will it be more like what I've observed?


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