How low is "low DCR"?
The evaluation board for PAM2401 chip has a 2.2 uH inductor rated for 6A, with 19.3 milliohms maximum and 16.1 milliohms typical resistance.

For comparison, the built in switching transistors are typically in the order of 100 and 150 milliohms.

The evaluation board sets the current limit to 3A, because it is a max 3A chip. 

The inductor may actually be selected based on low resistance to get lower losses, it works as long as it is rated for more than 3A.