iPhone 8 Plus · D21 · 051-02159 rev 10.0.0 · PCB 820-00846
Browse the main logic board schematic (DVT build, 81 sheets): learn how each subsystem works, then search parts like U2700, nets like PP_VDD_MAIN, or sheet titles.
Click any block to drill in. Lines show the main relationships, not every connection.
The set is organised around the A11 SoC (U1000) with stacked LPDDR4, fed by the D2422 PMU (U2700) through ten bucks and a bank of LDOs. Battery power arrives on PP_BATT_VCC (J3200), passes the SN2501 charger (U3300) to become PP_VDD_MAIN, and a TI boost (U3100) produces PP_VDD_BOOST. Wireless charging comes in through the Iktara receiver (U3400).
Peripherals sit around the SoC: NAND (U2600), sensors (U3600/10/20), the camera PMU and three camera B2Bs, the CS42L75 codec with two speaker amps and the Taptic driver, the display/touch power stage (Chestnut, Niki SiP, backlight), and the Lightning path (OVP → accessory buck → CCG2 USB-PD → Hydra mux → dock B2B).
Sheets 50–81 are the radio sub-designs: a Qualcomm MDM9655 baseband with its PDM9655 PMIC, WTR5975 transceiver, QPOET envelope tracker, Skyworks/Avago PA and diversity modules, antenna tuners, GNSS, NFC and the Wi-Fi/Bluetooth module.
Generated from text in the schematic PDF. Net and designator lists are machine-extracted and may contain gaps (radio-section ICs are drawn without text designators). Always confirm against the original sheet before probing a board.