SLVSDF3F MARCH 2017 – JANUARY 2019 TPSM846C23
It is possible to operate the module without the need for a PMBus interface. To set the output voltage, the adjustment method requires a resistor, RSET, connected between the FB pin and AGND as shown in Figure 15. To calculate the correct RSET value, the default value of VOUT_COMMAND must be known. The factory default value of VOUT_COMMAND is 256 (100h), which produces an output voltage of 0.500 V if the RSET resistor is not populated. Equation 2 can be used to calculate the RSET value for a given output voltage, VOUT. Additionally, the RSET value can be selected from Table 6.
Do not set the output voltage higher than 2 V.
|VOUT (V)||RSET (kΩ)||VOUT (V)||RSET (kΩ)|