component
LM317MDT
Public Made by Adomby adom
UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# LM317MDT++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252++LM317MDT from UMW, in a TO-252. 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 | Adjust | input | Voltage adjustment input connected to external resistor divider network to set output voltage (1.2 V to 37 V); adjustment pin current 2.2 µA typical, 3.5 µA maximum. |+| 2 | Output | power_out | Regulated output voltage adjustable from 1.2 V to 37 V with maximum output current 1.5 A. |+| 3 | Input | power_in | Unregulated input voltage supply; input-to-output voltage differential VI-VO must be 3 V to 40 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | TO-252 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `LM317MDT`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252 (KiCad packages3D, STEP)+- 3D model files: `lm317mdt-etched.step` / `lm317mdt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm317mdt.step` / `lm317mdt.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763509801311846400) (10 pp, sha256 `49a97f94a437a75f`, retrieved 2026-09-29, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lm317mdt-datasheet.pdf)
page.jsonadded+113@@ -0,0 +1,113 @@+{+ "slug": "lm317mdt",+ "version": "0.1.0",+ "type": "component",+ "description": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm317mdt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm317mdt.kicad_sym",+ "lm317mdt.kicad_mod",+ "lm317mdt.glb",+ "lm317mdt.step",+ "lm317mdt.lbr",+ "docs/hero.png",+ "docs/lm317mdt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM317MDT",+ "manufacturer": "UMW",+ "package": "TO-252",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763509801311846400",+ "parts": {+ "symbol": "lm317mdt.kicad_sym",+ "footprint": "lm317mdt.kicad_mod",+ "model_3d": "lm317mdt-etched.glb",+ "model_3d_plain": "lm317mdt.glb",+ "model_3d_step": "lm317mdt-etched.step",+ "model_3d_step_plain": "lm317mdt.step",+ "lbr": "lm317mdt.lbr"+ },+ "distributor_links": {+ "lcsc": "C3015165",+ "digikey": "LM317MDTST-ND",+ "mouser": "863-LM317MDT"+ },+ "distributor_check": {+ "checked_at": "2026-09-29T16:47:18Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM317MDTST-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "863-LM317MDT",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "Adjust",+ "type": "input",+ "description": "Voltage adjustment input connected to external resistor divider network to set output voltage (1.2 V to 37 V); adjustment pin current 2.2 µA typical, 3.5 µA maximum."+ },+ {+ "number": "2",+ "name": "Output",+ "type": "power_out",+ "description": "Regulated output voltage adjustable from 1.2 V to 37 V with maximum output current 1.5 A."+ },+ {+ "number": "3",+ "name": "Input",+ "type": "power_in",+ "description": "Unregulated input voltage supply; input-to-output voltage differential VI-VO must be 3 V to 40 V."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763509801311846400",+ "pages": 10,+ "sha256": "49a97f94a437a75f",+ "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]"+ }+}