Blinking LED Circuit Design


There are 11 remaining airwire DRC errors. They are on pads for U1, C2, R1, L1, and J1, corresponding to the still-unrouted nets: VBAT_3V7, SW, VOUT_5V, FB, and GND; the review output only exposes pad IDs, so I mapped them back to components/nets from the layout and schematic connectivity.
Route the SW net first and keep it as short as possible.
I've made a plan, and started work on it.

Started implementing a plan

#Goal

- Route the SW net on the existing 30mm x 25mm 2-layer boost converter PCB, ensuring a compact and minimal trace connection between U1:SW, L1:P2, and D1:A without disturbing other components or nets.

#Implementation plan

1. Inspect the existing PCB layout:

1. Verify and identify the SW net endpoints: U1:SW, L1:P2, and D1:A.

2. Confirm that all component placements and other net routings (FB divider, VIN, VOUT, GND) remain intact.

2. Route the SW net:

1. Use the top-layer routing to create a direct and short trace connecting U1:SW, L1:P2, and D1:A.

2. Avoid adding unnecessary vias or deviations and steer clear of the feedback divider/sense area.

3. Validate the routing:

1. Ensure that the SW trace is the only trace modified.

2. Confirm that no other net or component placement has been disturbed.

#Success criteria

- The SW net should have a minimal length and direct connection between U1:SW, L1:P2, and D1:A.

- No component placement changes or disturbances to other nets (FB, VIN, VOUT, GND) occur.

Execution stopped due to insufficient credits.

0:17

Work done
  • I could not continue execution because the session has no remaining execution credits.
  • No project manipulation was performed in this step, so the existing 30mm × 25mm layout and current routing state remain unchanged.
Success criteria review
  • ❌ SW endpoints were not re-inspected in this step.
  • ❌ The SW net was not routed in this step.
  • ✅ No other components or nets were disturbed by this step.
Next steps
  • When execution is available again, proceed with: inspect U1/L1/D1 pad locations, route only the SW net on the top layer with the shortest practical path between U1:SW, L1:P2, and D1:A, then validate that FB, VIN, VOUT, GND, and component placement are unchanged.

Schematic of 3.7V Li-Ion Boost Converter

3.7V Li-Ion Boost Converter

3.7V Li-Ion Boost Converter thumbnail