# Step 5: Sourcing

every part in stock, with an MPN

## Visits

- 2026-10-18T16:15:12Z

## What the binary checked

### sourcing

- **adomStockRows**: 11
- **board**: ./aiflow-run/board-0.kicad_pcb
- **boardChecked**: True
- **boardRefs**: 31
- **bom**: /home/adom/project/tps54202-buck-12v5v/design/bom.csv
- **bomSha256**: 0562fb908daac2ac5820ea52e2f7c98698058c903f998357cd3690ac61d07147
- **checkedAt**: 2026-10-18T19:08:03Z
- **distributorRows**: 4
- **errors**: 0 item(s)
- **exactMpnEvidence**: cited 0; missing 15; required False
- **excludedByBoard**: TP1, TP2, TP3, TP4, TP5, TP6, TP7
- **extra**: 0 item(s)
- **lcscRows**: 0
- **missing**: 0 item(s)
- **noPartRows**: 1
- **pass**: True
- **profile**: fab
- **profileNamedBy**: --profile
- **qty**: 10
- **qtySource**: the default; say --qty or requirements build.quantity
- **refs**: 38
- **rows**: 16
- **stockCheckDates**: 2026-10-18
- **warnings**: 15 row(s) without an exact-MPN page (U1 (TPS54202DDCR), L1 (AMPLH5030S-150MT), C1 (EEE-FK1V470P), C2, C3 (CC1206KKX7R8BB106), C4, C5, C10 (0603B104J500CT), C6, C7, C8 (CL21A226MPQNNNE), C9 (0402N680J500CT), R1 (CR0402-FX-3303GLF), ...): add an mpn_url column with the manufacturer or distributor page for that exact MPN (value, tolerance, dielectric, voltage, package); a family datasheet or a decoded part-number grammar is not proof the part is made

## Evidence

- calcs: `calcs.json` (pass)

## Clips

::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/pub-desktop-m0-20261018-161551-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/pub-desktop-m0-20261018-161551-poster.jpg" title="Sourcing, visit 1 (10x)" muted="true"}

## AI usage (Google Antigravity)

52 model calls: 252,217 fresh input, 6,176,699 cached input and 43,260 output tokens.