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DCR Sensing

Question asked by ctiger on Feb 8, 2018
Latest reply on Feb 8, 2018 by ctiger

Hi,

 

I would like to know is there any difference on the placement of the Inductor DCR sensing.

 

On the datasheet of LTC3784 the DCR sensing the capacitor and resistor is parallel, whereas on the application note 136 using LTC3855 the application note show a different placement of the DCR sensing.

 

And also I notice on the buck regulator EMC using LTC3891 is the same configuration as the AN136.

 

Any feedback or comments will be much appreciated.

 

Thanks in advance.

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