component
LM2931AZ50R
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# LM2931AZ50R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92++LM2931AZ50R from STMicroelectronics, in a TO-92. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VOUT | power_out | Regulated 5 V output; 4.81 V min / 5.19 V max at 25 °C, 4.75 V min / 5.25 V max over IO = 100 mA and TJ = −40 to 125 °C; maximum output current 100 mA with internal current and thermal limiting. |+| 2 | GND | power_in | Ground reference for the regulator; quiescent current into this pin is 2.5 mA typ / 30 mA max at IO = 100 mA. |+| 3 | VIN | power_in | DC input voltage, 6 V to 26 V maximum operating; load-dump transient up to 60 V (τ < 100 ms) causes automatic shutdown; reverse transient protection up to −50 V (τ < 100 ms); dropout voltage 90 mV typ / 200 mV max at IO = 10 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-92 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `LM2931AZ50R`+- Footprint: `Package_TO_SOT_THT:TO-92_Inline`+- 3D model: TO-92 (KiCad packages3D, STEP)+- 3D model files: `lm2931az50r-etched.step` / `lm2931az50r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2931az50r.step` / `lm2931az50r.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590373203022409728) (26 pp, sha256 `8d28778e66f6f19e`, retrieved 2026-09-26, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (text+vision), consensus `claude-opus-4-7` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lm2931az50r-datasheet.pdf)
page.jsonadded+128@@ -0,0 +1,128 @@+{+ "slug": "lm2931az50r",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm2931az50r",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm2931az50r.kicad_sym",+ "lm2931az50r.kicad_mod",+ "lm2931az50r.glb",+ "lm2931az50r.step",+ "lm2931az50r.lbr",+ "docs/hero.png",+ "docs/lm2931az50r-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM2931AZ50R",+ "manufacturer": "STMicroelectronics",+ "package": "TO-92",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590373203022409728",+ "parts": {+ "symbol": "lm2931az50r.kicad_sym",+ "footprint": "lm2931az50r.kicad_mod",+ "model_3d": "lm2931az50r-etched.glb",+ "model_3d_plain": "lm2931az50r.glb",+ "model_3d_step": "lm2931az50r-etched.step",+ "model_3d_step_plain": "lm2931az50r.step",+ "lbr": "lm2931az50r.lbr"+ },+ "distributor_links": {+ "lcsc": "C3750209",+ "digikey": "497-4262-2-ND",+ "mouser": "511-LM2931AZ50R"+ },+ "distributor_check": {+ "checked_at": "2026-09-26T20:01:02Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-4262-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-LM2931AZ50R",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VOUT",+ "type": "power_out",+ "description": "Regulated 5 V output; 4.81 V min / 5.19 V max at 25 °C, 4.75 V min / 5.25 V max over IO = 100 mA and TJ = −40 to 125 °C; maximum output current 100 mA with internal current and thermal limiting."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the regulator; quiescent current into this pin is 2.5 mA typ / 30 mA max at IO = 100 mA."+ },+ {+ "number": "3",+ "name": "VIN",+ "type": "power_in",+ "description": "DC input voltage, 6 V to 26 V maximum operating; load-dump transient up to 60 V (τ < 100 ms) causes automatic shutdown; reverse transient protection up to −50 V (τ < 100 ms); dropout voltage 90 mV typ / 200 mV max at IO = 10 mA."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-sonnet-4-6",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-4-7",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 26,+ "cost_usd": 0.2528,+ "at": "2026-09-26T20:00:47"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590373203022409728",+ "pages": 26,+ "sha256": "8d28778e66f6f19e",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 3,+ "described": 3,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}