For variable output type LDOs, what is the behavior of the output when the Vo/ground side of the feedback resistor connected to the FB pin is open?|FAQ|ROHM Semiconductor

FAQ

For variable output type LDOs, what is the behavior of the output when the Vo/ground side of the feedback resistor connected to the FB pin is open?
- If the opened resistor is the feedback resistor at the Vo side, VCC (Vin) voltage is output. If at the ground side, in some cases the reference voltage is output which may cause the output to oscillate. In both cases the output is undefined.