Apple developing another chip in-house to next year's iPhone
Apple has been trying to get less dependent on other chip manufacturers in the recent years. Most importantly they started developing their own graphics processing units that were first deployed in this year's iPhone models.
Now, according to Nikkei Asian Review, sources say that Apple is developing another in-house chip that will probably find its way to future iPhones.
This time around the chip is a power management chip that makes sure battery lasts. Apple's work on iPhones has resulted in fairly good battery life, albeit not anything competitors don't have to offer. However, Apple's battery life work has mostly been done in software, thanks to iOS being very optimized, so there is certainly more they can do with semiconductor development.
Previously power management chips have been developed by Dialog Semicoductor. Previous GPUs on the other hand were developed by Imagination Technologies. In addition to GPUs, and now it seems power management, Apple's in-house development consists of designing the SoCs (e.g. Apple A11 Bionic), AI or so called Neural Engine chips, and image processing chips.

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