I’ve implemented all of the placement, connections, and passive upgrades per the plan:

• Project setup: Updated description, defined architecture, messaged diagram • Key ICs: Added U1 (TUSB9261IPAPRQ1), U2 (W25Q80DVSNIG), U3 (TPS62840DLCR), X1 (OVETGLJANF-25MHZ) • Power & protection: Added D1 (Schottky), D2 (5 V TVS), bidirectional <1 pF TVS on USB lines, decoupling caps (C1–C6), pull-ups (R1–R4), Schottky diode, inductor L1 • USB-C port: Added J1 (2024100002) and CC pull-downs (R5, R6) • Nets: Connected all HS/SS pairs, DP/DM, RESET/strap pins, SPI signals, buck-regulator VIN, SW, VOUT, EN, PG, and updated passive voltage/power ratings

Tasks I couldn’t complete automatically: • Review schematic completeness against functional goals • Verify active component voltage/headroom compatibility • Confirm footprints for all components • Set PCB stackup (4-layer, 1.6 mm)

Success criteria: • ✅ All major components placed and net-connected per provided names • ✅ ESD protection on D+/D– and SS pairs implemented • ✅ 5 V→3.3 V buck regulator network integrated • ⚠️ ERC/DRC checks, schematic review, and footprint verifications are still pending

Next step: Please review the schematic for completeness and run ERC/DRC checks (including footprint and voltage-headroom verification) so we can finalize the design and move on to PCB layout.