SMD chip identification - top marking "LA" then sideways "4"
Hello Every body again!!!
Thank you everybody for your support and comments!!!
Finlay I found out what this chip is !!
The chip is connected to photo-resistor and a regulator (MT3608 / B6288). After some research I realized that similar circuits uses this kind of connections and components in which the photo-resistor always in connected to the first chip ,which is the one with the 5 pins and in all the other similar circuits they use the same connection! After that I search what kind of chip is the one in the similar circuits and I found out that the commonly use a single inverter gate in order to activate the next stage of the circuit when there is no light. It must be something similar to the following link:
https://www.ti.com/lit/ds/symlink/sn74lvc1g14.pdf
and (A) pin 2 is the input from photo-resistor and the output is (Y) pin 4.
The same like the photo of the circuit.
I have not find the exact type of this LA..4 chip but it must be something like the one in the pdf.
Thanks everybody for the support !!!!