I'm designing a controlled voltage source for 4 channels using a LTC2974 to control four LT3012 LDOs.
My question it's about current sensing ports. In the datasheet defines how to measure the current with a shunt resistor that includes a filter to avoid the switching frequencies from the used DC/DC converter.
I want to use a LDO regulator, the LT3012, my question is the next:
Can I quit the filtering and use directly the shunt resistor to measure the current using a LDO, or I always need to implement some filtering?
If I need the filter, to which frequency is recomendable to filter for the LT3012 LDO?
Many thanks in advance.