SLVSFM1 March 2021 TPS62902
The TPS62902 can be programmed by the MODE/S-CONF pin to either classical configuration where the FB/VSET pin is used as the feedback pin, sensing VO through an external resistive divider. The TPS62902 can also be programmed to 16 different fixed output voltages. These are set through an external resistor between the FB/VSET pin and GND. In this configuration, VO is directly sensed at the VOS terminal of the device.
If the device is configured to operate in classical adjustable VO operation, the FB/VSET pin is used as the feedback pin and needs to sense VO through an external divider network. Figure 7-2 shows the typical schematic for this configuration.