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TPS62872-Q1: 对于VOUT和VFB,I2C Configuration之间的关系,如何定性、定量理解?

Part Number: TPS62872-Q1
Other Parts Discussed in Thread: TPS62872

具体项目背景:

  1. TPS62872作为外部DCDC给V3H芯片CORE电压;
  2. V3H可通过I2C进行调压。

根据芯片手册,VOUT可通过改寄存器VSET[7:0]值进行调压,同时采集VOSNS/GOSNS(这里称VFB)的反馈电压。

但是对于VOUTVFBI2C Configuration之间的关系,如何定性、定量理解?

(因为这里没有看到像其他DCDC,有关于VOUTVFB的对应公式)