4 volt microchip voltage regulator

My Grundig satellit 750 radio was accidently overloaded with a 240 volt ac adapter. Its voltage regulator, which is a 4v microchip with 3 pins on either side is damaged. The number is damaged and I can not give it. Someone told me that someone on this forum will know it. Can someone help? I attach the electronic circuit for easy appreciation. It is the rectangular structure with three pins on either side. 20181125_173505|666x500


I am sorry I cannot find any information on the voltage regulator that is used in that radio

Hell @Zakariyau I see your link did not come through is this information on the regulator?