Other Parts Discussed in Thread: TPS53681
Does TPS53641 support 3.3V output @ 120A?
or which power ic can support 3.3V output @ 120A?
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I have attached a few slides, about using TI multiphase controllers above the max VID table. This document is specifically prepared for TPS53681, but the considerations are siimlar.
R136 should be between the VSP and VSN Pins. This forms a differential division at the input to the remote sense amplifier. You will also need to increase the local sense resistors connection to avoid their influence.
Example, if R148 and R136 form a 2:1 divider (VSP pin equal 0.5x VOUT) , then VOUT =2x Demanded VID.