component
LDS3985M33R
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+41@@ -0,0 +1,41 @@+# LDS3985M33R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++LDS3985M33R from STMicroelectronics, in a SOT-23-5. 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 | LDO input voltage operating from 2.5 V to 6 V |+| 2 | GND | power_in | Common ground |+| 3 | VINH | input | Inhibit input voltage enabling ON mode at ≥1.2 V and OFF mode at ≤0.4 V; must not be left floating |+| 4 | Bypass | passive | Bypass pin for external capacitor connection (typically 10 nF) to minimize noise voltage |+| 5 | VO | output | LDO regulated output voltage (3.3 V nominal for M33R variant) |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LDS3985M33R`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `lds3985m33r-etched.step` / `lds3985m33r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lds3985m33r.step` / `lds3985m33r.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/8588903725968998400) (21 pp, sha256 `72544d5f7fa35736`, retrieved 2026-09-24, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/lds3985m33r-datasheet.pdf)
page.jsonadded+123@@ -0,0 +1,123 @@+{+ "slug": "lds3985m33r",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lds3985m33r",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lds3985m33r.kicad_sym",+ "lds3985m33r.kicad_mod",+ "lds3985m33r.glb",+ "lds3985m33r.step",+ "lds3985m33r.lbr",+ "docs/hero.png",+ "docs/lds3985m33r-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LDS3985M33R",+ "manufacturer": "STMicroelectronics",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903725968998400",+ "parts": {+ "symbol": "lds3985m33r.kicad_sym",+ "footprint": "lds3985m33r.kicad_mod",+ "model_3d": "lds3985m33r-etched.glb",+ "model_3d_plain": "lds3985m33r.glb",+ "model_3d_step": "lds3985m33r-etched.step",+ "model_3d_step_plain": "lds3985m33r.step",+ "lbr": "lds3985m33r.lbr"+ },+ "distributor_links": {+ "lcsc": "C222381"+ },+ "pins": [+ {+ "number": "1",+ "name": "VI",+ "type": "power_in",+ "description": "LDO input voltage operating from 2.5 V to 6 V"+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Common ground"+ },+ {+ "number": "3",+ "name": "VINH",+ "type": "input",+ "description": "Inhibit input voltage enabling ON mode at ≥1.2 V and OFF mode at ≤0.4 V; must not be left floating"+ },+ {+ "number": "4",+ "name": "Bypass",+ "type": "passive",+ "description": "Bypass pin for external capacitor connection (typically 10 nF) to minimize noise voltage"+ },+ {+ "number": "5",+ "name": "VO",+ "type": "output",+ "description": "LDO regulated output voltage (3.3 V nominal for M33R variant)"+ }+ ],+ "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-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 21,+ "cost_usd": 0.1159,+ "at": "2026-09-24T02:42:51"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903725968998400",+ "pages": 21,+ "sha256": "72544d5f7fa35736",+ "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]"+ }+}