component
L7912CV
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+39@@ -0,0 +1,39 @@+# L7912CV++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220++L7912CV from STMicroelectronics, in a TO-220. 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 | GND | power_in | Ground reference pin of the regulator; the datasheet shows it as the bottom lead of the TO-220 top-view drawing. |+| 2 | IN | power_in | Negative unregulated input; absolute maximum DC input voltage is -35 V for VO = -5 to -18 V, and VI = -19 V is the L7912C test condition. |+| 3 | OUT | power_out | Regulated -12 V output (-11.5 to -12.5 V at TJ = 25 °C), output current internally limited with up to 1.5 A capability. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-220 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `L7912CV`+- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`+- 3D model: TO-220 (KiCad packages3D, STEP)+- 3D model files: `l7912cv-etched.step` / `l7912cv-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l7912cv.step` / `l7912cv.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/8588887309881761792) (24 pp, sha256 `68ee756997bb737a`, retrieved 2026-09-29, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (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/l7912cv-datasheet.pdf)
page.jsonadded+128@@ -0,0 +1,128 @@+{+ "slug": "l7912cv",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "l7912cv",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "l7912cv.kicad_sym",+ "l7912cv.kicad_mod",+ "l7912cv.glb",+ "l7912cv.step",+ "l7912cv.lbr",+ "docs/hero.png",+ "docs/l7912cv-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "L7912CV",+ "manufacturer": "STMicroelectronics",+ "package": "TO-220",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588887309881761792",+ "parts": {+ "symbol": "l7912cv.kicad_sym",+ "footprint": "l7912cv.kicad_mod",+ "model_3d": "l7912cv-etched.glb",+ "model_3d_plain": "l7912cv.glb",+ "model_3d_step": "l7912cv-etched.step",+ "model_3d_step_plain": "l7912cv.step",+ "lbr": "l7912cv.lbr"+ },+ "distributor_links": {+ "lcsc": "C111886",+ "digikey": "497-1476-5-ND",+ "mouser": "511-L7912CV"+ },+ "distributor_check": {+ "checked_at": "2026-09-29T23:00:55Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-1476-5-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "511-L7912CV",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin of the regulator; the datasheet shows it as the bottom lead of the TO-220 top-view drawing."+ },+ {+ "number": "2",+ "name": "IN",+ "type": "power_in",+ "description": "Negative unregulated input; absolute maximum DC input voltage is -35 V for VO = -5 to -18 V, and VI = -19 V is the L7912C test condition."+ },+ {+ "number": "3",+ "name": "OUT",+ "type": "power_out",+ "description": "Regulated -12 V output (-11.5 to -12.5 V at TJ = 25 °C), output current internally limited with up to 1.5 A capability."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin numbering diagram (Figure 2, PAGE 4) is referenced in datasheet but the detailed pin connection ",+ "1/3 pins cited to the wrong page (name found elsewhere): ['2:GND@p4']"+ ],+ "pages_sent": 24,+ "cost_usd": 0.1648,+ "at": "2026-09-29T23:00:43"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588887309881761792",+ "pages": 24,+ "sha256": "68ee756997bb737a",+ "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]"+ }+}