Only the loop controller device (U1) needs a resistor divider at the ADRSEL pin. In this example, the ADRSEL pin is left floating. This sets the PMBus loop follower address to the EEPROM value, 0x24h (36d) by default, and the SYNC pin to auto detect with 0 degrees phase shift. Use Table 6-14 and Table 6-15 to select the resistor to AGND code and resistor divider code needed for the desired configuration.