Question about Toshiba Satellite A75-S206 Notebook

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Can you give me data about the 600C03L (i think it's a regulator)

My old toshiba laptop is not working now ,i tested the device with another battery and it did not work for that even.
so i think it is the problem with regulator ,when i checked the circuit there was an IC similar to a regulator (600C03L) but i could not find datasheet for that IC any where in the internet.
please help me.

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