SLUSCC7C July 2016 – June 2018 TPS546C23
The nominal output voltage of the converter can also be adjusted by changing the feedback voltage, VFB, using the VREF_TRIM command. The adjustment range is from –64 × 1.953 mV to +63 × 1.953 mV from the nominal FB voltage. This command adjusts the final output voltage of the converter to a high degree of accuracy without relying on high-precision feedback resistors. The resolution of the adjustment is approximately 1.953 mV.