iPhone 11 Pro Teardown by IFIXIT
Apple’s iPhone 11 Pro’s very detailed teardown by IFIXIT unveils various Integrated Circuits (ICs) for SoC, RAM, Flash (Non-volatile memory), LTE and 5G connectivity, display port multiplexer, power management, wireless charging, battery charging, audio amplifier, RF module etc. from supplier/manufacturers including Apple, Micron, Intel, Cirrus Logic, SK Hynix, Murata, Kioxia, Qualcomm, USI, Avago (Broadcom), NXP, Texas Instrument (TI), STMicroelectronics (ST), Bosch, Maxim and Skyworks.
Check full and nicely detailed teardown information for iPhone11 Pro at IFIXIT.
If you are looking for all ICs in the phone, also check iPhone11 Pro Max teardown by IFIXIT.