Hello,
thanks for the super fast reply.
ELM7S04B, TC7S04F/FU and RN5VD45AA seems the most suitable. I'll check them with more attention but thanks.
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I am also looking for another part so I post it here juste in case.
It is a 6 pins part with marking 41FAH (the 1 and the A have a line above them : 4/1F/AH) and I think it is in an SOT-23 package.
Pins 1 2 5 and 6 are connected.
Volatge between pin 3 a nd 4 is 1.24V (measured with multimeter in diode mode, + on pin3 and gnd on pin 4).
It is the part circled on the picture.
Thanks