component
LD2981ABM50TR
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+41@@ -0,0 +1,41 @@+# LD2981ABM50TR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L++LD2981ABM50TR from STMicroelectronics, in a SOT-23-5L. 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 | VIN | power_in | DC input supply voltage, operating range 2.5 to 16 V. |+| 2 | GND | power_in | Ground reference pin. |+| 3 | INHIBIT | input | Logic-controlled shutdown input; pull low (≤0.18 V) to disable output, high (≥1.6 V) to enable; must not be left floating. |+| 4 | NC | unconnected | Not connected. |+| 5 | VOUT | output | Regulated 5.0 V DC output port with guaranteed output current up to 100 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-5L |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LD2981ABM50TR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5L (KiCad packages3D, STEP)+- 3D model files: `ld2981abm50tr-etched.step` / `ld2981abm50tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ld2981abm50tr.step` / `ld2981abm50tr.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/8588881756922007552) (27 pp, sha256 `872f7e5b1c76b812`, retrieved 2026-09-27, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/ld2981abm50tr-datasheet.pdf)
page.jsonadded+138@@ -0,0 +1,138 @@+{+ "slug": "ld2981abm50tr",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ld2981abm50tr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ld2981abm50tr.kicad_sym",+ "ld2981abm50tr.kicad_mod",+ "ld2981abm50tr.glb",+ "ld2981abm50tr.step",+ "ld2981abm50tr.lbr",+ "docs/hero.png",+ "docs/ld2981abm50tr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LD2981ABM50TR",+ "manufacturer": "STMicroelectronics",+ "package": "SOT-23-5L",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881756922007552",+ "parts": {+ "symbol": "ld2981abm50tr.kicad_sym",+ "footprint": "ld2981abm50tr.kicad_mod",+ "model_3d": "ld2981abm50tr-etched.glb",+ "model_3d_plain": "ld2981abm50tr.glb",+ "model_3d_step": "ld2981abm50tr-etched.step",+ "model_3d_step_plain": "ld2981abm50tr.step",+ "lbr": "ld2981abm50tr.lbr"+ },+ "distributor_links": {+ "lcsc": "C283469",+ "digikey": "497-1522-2-ND",+ "mouser": "511-LD2981ABM50"+ },+ "distributor_check": {+ "checked_at": "2026-09-27T09:47:25Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-1522-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-LD2981ABM50",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "DC input supply voltage, operating range 2.5 to 16 V."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin."+ },+ {+ "number": "3",+ "name": "INHIBIT",+ "type": "input",+ "description": "Logic-controlled shutdown input; pull low (≤0.18 V) to disable output, high (≥1.6 V) to enable; must not be left floating."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected."+ },+ {+ "number": "5",+ "name": "VOUT",+ "type": "output",+ "description": "Regulated 5.0 V DC output port with guaranteed output current up to 100 mA."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 27,+ "cost_usd": 0.112,+ "at": "2026-09-27T09:47:07"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881756922007552",+ "pages": 27,+ "sha256": "872f7e5b1c76b812",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "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]"+ }+}