ZHCSEM3F February 2016 – January 2023 TPS82130
The output voltage is set by an external resistor divider according to #SLVSCY57561:
R2 must not be higher than 100 kΩ to achieve high efficiency at light load while providing acceptable noise sensitivity. Larger currents through R2 improve noise sensitivity and output voltage accuracy. GUID-F49857A8-6A0D-4CE4-8CFD-FE3FDDE72A8A.html#SLVSCY51312 shows the external resistor divider value for a 1.8-V output. Choose appropriate resistor values for other outputs.
In case the FB pin gets opened, the device clamps the output voltage at the VOUT pin internally to approximately 7 V.