ST1S12G18R

{
  "schema_version": 1,
  "type": "component",
  "slug": "st1s12g18r",
  "title": "ST1S12G18R",
  "brief": "STMicroelectronics DC-DC Converters, TSOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "st1s12g18r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ST1S12G18R",
    "manufacturer": "STMicroelectronics",
    "package": "TSOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906307132682240",
    "parts": {
      "symbol": "st1s12g18r.kicad_sym",
      "footprint": "st1s12g18r.kicad_mod",
      "model_3d": "st1s12g18r-hero.glb",
      "model_3d_plain": "st1s12g18r.glb",
      "model_3d_step": "st1s12g18r-etched.step",
      "model_3d_step_plain": "st1s12g18r.step",
      "lbr": "st1s12g18r.lbr"
    },
    "distributor_links": {
      "lcsc": "C3194238",
      "digikey": "497-ST1S12G18RTR-ND",
      "mouser": "511-ST1S12G18R"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T02:43:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-ST1S12G18RTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-ST1S12G18R",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable input pin; device turns ON when EN ≥ 1.5V and OFF when EN ≤ 0.5V within VIN operating range of 2.5V to 5.5V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "System ground and common reference voltage for all internal and external circuits."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Internal MOSFET switching output pin for step-down inductor connection; voltage rating -0.3V to VIN + 0.3V."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive power supply input pin; minimum operating voltage 2.5V, absolute maximum rating 6.5V."
      },
      {
        "number": "5",
        "name": "FB/VO",
        "type": "output",
        "description": "Feedback voltage/output reference pin providing internal 1.8V fixed reference (nominal 1.8V, range 1.746V to 1.854V over -40°C to 125°C) for the G18R fixed-output variant."
      }
    ],
    "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": 20,
        "cost_usd": 0.1189,
        "at": "2026-10-07T02:43:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906307132682240",
        "pages": 20,
        "sha256": "6e911e5bce170a9f",
        "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"
    },
    "models_3d": [
      {
        "file": "st1s12g18r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5120f0cee43ef7743cc08408d2c12f234fcac7355386e330a3a16f336e23da8d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "st1s12g18r-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6d6d8d6c7deb5379508339f862fa4b5a4782c7deb2d5841eacd840efe1a49dc3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "TSOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "st1s12g18r"
  ],
  "discovery_pitch": "ST1S12G18R (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "st1s12g18r.kicad_sym",
    "st1s12g18r.kicad_mod",
    "st1s12g18r.glb",
    "st1s12g18r.step",
    "st1s12g18r.lbr",
    "docs/hero.png",
    "docs/st1s12g18r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "st1s12g18r-hero.glb",
    "st1s12g18r-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}