We have a 1.2V generating circuit from 3.3V input using LP3990 LDO.
Input is having 1uF ceramic capacitor output is having a 1uF ceramic,a 10uF tantalum and 4x 0.1uF ceramic capacitors.
The rail is powering VDD core to a microcontroller.
During turn OFF the LDO output generates an over shoot which goes to around 1.5V as shown below.
Any suggestions why its happening will be greatly helpful