component
LD3985M28R
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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.
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README.mdadded+41@@ -0,0 +1,41 @@+# LD3985M28R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L++LD3985M28R 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 | VI | power_in | Input voltage supply, operating range 2.5 V to 6 V with ultra-low dropout voltage. |+| 2 | GND | power_in | Common ground reference. |+| 3 | VINH | input | Inhibit input voltage for logic-controlled shutdown; ON mode when VINH ≥ 1.2 V, OFF mode when VINH ≤ 0.4 V; must not be left floating. |+| 4 | BYPASS | passive | Bypass pin connected to external capacitor (typically 10 nF) to minimize output noise voltage. |+| 5 | VO | power_out | Regulated output voltage, 2.8 V nominal, guaranteed output current up to 150 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-5L |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LD3985M28R`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5L (KiCad packages3D, STEP)+- 3D model files: `ld3985m28r-etched.step` / `ld3985m28r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ld3985m28r.step` / `ld3985m28r.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/8590454476764319744) (19 pp, sha256 `d909f94a6b4df434`, retrieved 2026-10-03, 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/ld3985m28r-datasheet.pdf)
page.jsonadded+139@@ -0,0 +1,139 @@+{+ "slug": "ld3985m28r",+ "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)",+ "ld3985m28r",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ld3985m28r.kicad_sym",+ "ld3985m28r.kicad_mod",+ "ld3985m28r.glb",+ "ld3985m28r.step",+ "ld3985m28r.lbr",+ "docs/hero.png",+ "docs/ld3985m28r-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ld3985m28r-hero.glb",+ "ld3985m28r-hero.overlay.json"+ ],+ "component": {+ "mpn": "LD3985M28R",+ "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/8590454476764319744",+ "parts": {+ "symbol": "ld3985m28r.kicad_sym",+ "footprint": "ld3985m28r.kicad_mod",+ "model_3d": "ld3985m28r-hero.glb",+ "model_3d_plain": "ld3985m28r.glb",+ "model_3d_step": "ld3985m28r-etched.step",+ "model_3d_step_plain": "ld3985m28r.step",+ "lbr": "ld3985m28r.lbr"+ },+ "distributor_links": {+ "lcsc": 5267951,+ "digikey": "497-7795-2-ND",+ "mouser": "511-LD3985M28R"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T05:54:14Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-7795-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "511-LD3985M28R",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VI",+ "type": "power_in",+ "description": "Input voltage supply, operating range 2.5 V to 6 V with ultra-low dropout voltage."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Common ground reference."+ },+ {+ "number": "3",+ "name": "VINH",+ "type": "input",+ "description": "Inhibit input voltage for logic-controlled shutdown; ON mode when VINH ≥ 1.2 V, OFF mode when VINH ≤ 0.4 V; must not be left floating."+ },+ {+ "number": "4",+ "name": "BYPASS",+ "type": "passive",+ "description": "Bypass pin connected to external capacitor (typically 10 nF) to minimize output noise voltage."+ },+ {+ "number": "5",+ "name": "VO",+ "type": "power_out",+ "description": "Regulated output voltage, 2.8 V nominal, guaranteed output current up to 150 mA."+ }+ ],+ "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": [],+ "pages_sent": 19,+ "cost_usd": 0.0606,+ "at": "2026-10-03T05:53:43"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454476764319744",+ "pages": 19,+ "sha256": "d909f94a6b4df434",+ "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]"+ }+}