There are 5 dedicated feedback pins on the TPS650250: 2 for LDO1 and LDO2, 3 for DEFDCDC1/2/3.
You are correct, the typical voltage of the feedback pins FB_LDO1 and FB_LDO2 is VFB = 1.0V
The output voltage accuracy. line regulation, and load regulation is specified on the next page in a group of rows:
The accuracy of the feedback pin is +/-1%, but at light load (IO = 10 mA) the LDO is slightly less accurate overall and can decrease to (Vo - 2%). Specifying the accuracy of the output and the load regulation is generally better than specifying the accuracy of the feedback comparator, but it is also dependent on the layout of the PCB and the output capacitance.
The feedback pins of the DCDC converters are named DEFDCDC1, DEFDCDC2, and DEFDCDC3. The VFB value for these pins is 0.6V and the accuracy specification is slightly different for each DCDC converter:
The tolerance of the feedback voltage is still +/-1%, but the accuracy of the output voltage is also dependent on whether the device is in PFM or force-PWM mode.
