- Power supply IC is the main IC which gives voltage to all the circuits receiving commands from CPU.
- Power supply IC detects SIM card, receives information of SIM card and transfer them to CPU
- Power supply IC works as a charger. It reveives charging voltage from charger IC then charge the voltage to battery.
Location of Power Supply IC:-
- Located in IF section
- Upper and left side of CPU
- infront of Audio IC
- Silicon type
- BGA type
- Square type
- In some sets, Power Supply IC and Audio IC comes combined and there is only one IC instead of two near CPU.
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