PRODUCT DESCRIPTION This Chestnut Display Driver/Boost IC has a built-in high efficiency boost regulator. Unused sinks are disabled by tying them to ground. The boost output automatically adjusts its voltage to the WLED forward voltage to improve efficiency. This stobe/flash driver/boost IC supports multiple brightness dimming methods. iPhone X / XS / XSMAX designation: U5600 Port Marking: 65730AOP It’s also known as: Chestnut Display Driver / Boost IC.