← Commit history

page.json: fold the "TAB" entry into pin 2. On TO-252-2 the tab is not a separate pad - it is that lead - so nothing was ever unconnected, but the page listed it as its own pin and pads.json reported pin-not-in-symbol for a pin that cannot exist. Target chosen because net OUTPUT matches pin 2; the tab's description is merged into that pin rather than dropped.

Ray ·2cbfa06a82 · ·parent 2b819d6
2 files changed +4−17
pads.json+2−9
@@ -24,14 +24,7 @@   "3"  ],  "paste_apertures": 4,- "issues": [-  {-   "kind": "pin-not-in-symbol",-   "pin": "TAB",-   "name": "OUTPUT (Tab)",-   "detail": "page.json describes pin \"TAB\" (OUTPUT (Tab)) from the datasheet, but the symbol has no such pin, so nothing can connect to it"-  }- ],+ "issues": [],  "pads": [   {    "pad": "1",@@ -84,7 +77,7 @@    "pin": "2",    "name": "OUTPUT",    "type": "power_out",-   "description": "Regulated 3.3V output (VOUT = 3.3V nominal, 1A max continuous). Requires a 22µF (tantalum recommended) or larger output capacitor for stability and to meet the PSRR/dropout specs. Internally current-limited to ~1.35A typ; thermal shutdown activates at TJ ≈ +150°C.",+   "description": "Regulated 3.3V output (VOUT = 3.3V nominal, 1A max continuous). Requires a 22µF (tantalum recommended) or larger output capacitor for stability and to meet the PSRR/dropout specs. Internally current-limited to ~1.35A typ; thermal shutdown activates at TJ ≈ +150°C. Also the package tab: exposed metal heat-sink tab on the back of the TO-252 package, electrically common with pin 2 (OUTPUT). Solder to a copper pour tied to VOUT for thermal dissipation; θJC ≈ 17 °C/W for TO252-2.",    "is_pin1": false,    "source": {     "geometry": "TO-252-2.kicad_mod",
page.json+2−8
@@ -15,7 +15,7 @@     "mpn": "AZ1117D-3.3TRE1",     "manufacturer": "Diodes",     "package": "TO-252-2",-    "pin_count": 4,+    "pin_count": 3,     "category": "PMIC",     "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",     "datasheet": "https://www.diodes.com/assets/Datasheets/AZ1117D-3.3TRE1.pdf",@@ -40,19 +40,13 @@         "number": "2",         "name": "OUTPUT",         "type": "power_out",-        "description": "Regulated 3.3V output (VOUT = 3.3V nominal, 1A max continuous). Requires a 22\u00b5F (tantalum recommended) or larger output capacitor for stability and to meet the PSRR/dropout specs. Internally current-limited to ~1.35A typ; thermal shutdown activates at TJ \u2248 +150\u00b0C."+        "description": "Regulated 3.3V output (VOUT = 3.3V nominal, 1A max continuous). Requires a 22\u00b5F (tantalum recommended) or larger output capacitor for stability and to meet the PSRR/dropout specs. Internally current-limited to ~1.35A typ; thermal shutdown activates at TJ \u2248 +150\u00b0C. Also the package tab: exposed metal heat-sink tab on the back of the TO-252 package, electrically common with pin 2 (OUTPUT). Solder to a copper pour tied to VOUT for thermal dissipation; \u03b8JC \u2248 17 \u00b0C/W for TO252-2."       },       {         "number": "3",         "name": "INPUT",         "type": "power_in",         "description": "Unregulated DC input, VIN. Recommended operating range up to 15V (absolute maximum 20V). Must be at least VOUT + VDROP (\u2265 ~4.45V at 1A load for the 3.3V version). A 10\u00b5F input bypass capacitor to GND is recommended near the pin."-      },-      {-        "number": "TAB",-        "name": "OUTPUT (Tab)",-        "type": "power_out",-        "description": "Exposed metal heat-sink tab on the back of the TO-252 package, electrically common with pin 2 (OUTPUT). Solder to a copper pour tied to VOUT for thermal dissipation; \u03b8JC \u2248 17 \u00b0C/W for TO252-2."       }     ],     "provenance": {