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LTC3853 for a single 3-phase output

In the datasheet for the LTC3853 it states that the part can also be configured to provide a single 3-phase output for even higher output currents I couldn't find examples on how to configure the device. According to the datasheet there's the option to run in dual (2+1) mode, which is for 1 high current two phase output, plus 1 lower current output. The two phase output has it's gate drive signals shifted to 180deg apart, vs 120deg for three independent outputs. To me it makes sense to leave all three outputs as independent (120deg phase shift), and tie their feedback together. Should the FB signals be shorted together? The Ith pins (current comparator threshold) be tied together?Thanks for any help!
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