From a chip supply stand point, the iPhone 13 pro Max looks very similar to the iPhone 12 pro Max. The RF section is split between Qorvo,Skyworks,Murata, and Avago as in the past. Qorvo adding the only antenna tuner it didnt have last year. The modem (Qualcomm), Application processor (Apple), Connectivity (USI,Broadcom,NXP,Murata, and Skyworks) all retained their positions. Samsung picked up a RAM win (could be split with Micron though as RAM is often dual sourced). Flash memory (Kioxia) did not see a supply change though. Most of the audio and power management suppliers retained their sockets (Cirrus Logic,Dialog, Analog devices, STM,TI, NXP, Cypress, and On semi) but there were three notable changes- Cirrus Logic added a battery management controller to its codec and audio amps, Broadcom added a wireless charger, and Dialog added a battery charger IC. The most surprising being Cirrus Logic jumping into power management. Lastly, sensors were largerly controlled by the same suppliers but Knowles picked up 3 microphones (also a dual sourced component), and Cirrus Logic picked up a third OIS/AF controller due to the third rear camera adding OIS this year. Additional detail can be found in the table shown below.
Related Devices: APPLE iPhone 13 Mini 5G US A2176 128GB 4GB RAM Dual SIM, APPLE iPhone 12 5G US A2172 64GB 4GB RAM Dual SIM, APPLE iPhone 12 Pro 5G US A2341 128GB 6GB RAM Dual SIM, APPLE iPhone 12 Pro Max 5G US A2342 128GB 6GB RAM Dual SIM, APPLE iPhone 13 5G US A2482 128GB 4GB RAM Dual SIM, APPLE iPhone 13 Pro 5G US A2483 128GB 6GB RAM Dual SIM, APPLE iPhone 13 Pro Max 5G US A2484 128GB 6GB RAM Dual SIM