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about INTVCC of LTM4630?

hello,

Recently I make LTM4630 to output 1V to FPGA VCCINT for 18A.During my design,I find a question about INTVCC with different connect between LTM4630fa datasheet and DS2081-a as following:

the datgasheet tells that INTVCC should connect PGND ,but the DS2081-a connect it to SGND,and there is a 0 ohm between SGND and GND,which is right?

thanks.