We are using TPS628692ARQY IC part in our design, but we are not able to set exact output voltage when we write value for VOUT Register 1 with address of 0x01.
And our observations are as below,
*Initially VOUT Register 1 value is 0x00 output 0.95V we are getting, and it is slowly decrease up to 0.8V and then again it starts from 0.95V to 0.8V.
*When VOUT Register 1 value is 0x20, we are getting the voltage value of 1.31V to 1.12V (again it is decrease and increase in that range)
*When VOUT Register 1 value is 0x50, we are getting the voltage value of 1.64V (this time we are getting constant voltage, below 0x50 every values voltage setting are fluctuating)
*When VOUT Register 1 value is 0x64, we are getting the voltage value of 1.95V (but actual value is 1.8V has to get as per datasheet)
*When VOUT Register 1 value is 0xFF, we are getting the voltage value of 3.45V (but max. voltage supported by the IC is 3.35V)
But we have made exact circuit as in web-bench recommend design.
