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TPS62876-Q1: power design issues for TPS6287X-Q1

Part Number: TPS62876-Q1
  1. In stacked operation mode, does it support DVS adjustment? How is the voltage adjustment of the Secondary achieved? How is the adjustment speed evaluated?
  2. In cascade mode, do we only need to connect the I2C interface of the Primary? How is the diagnosis of the Secondary device (OV, UV, OC, OT) achieved?
  3. In cascade mode, what is the duty cycle of the synchronous clock signal output from the SYNC pin? Is it dynamically adjustable?
  4. Can you please provide the power calculation table for TPS6287X-Q1?