LD3985M27R

{
  "schema_version": 1,
  "type": "component",
  "slug": "ld3985m27r",
  "title": "LD3985M27R",
  "brief": "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.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "ld3985m27r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LD3985M27R",
    "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/8604433219211177984",
    "parts": {
      "symbol": "ld3985m27r.kicad_sym",
      "footprint": "ld3985m27r.kicad_mod",
      "model_3d": "ld3985m27r-hero.glb",
      "model_3d_plain": "ld3985m27r.glb",
      "model_3d_step": "ld3985m27r-etched.step",
      "model_3d_step_plain": "ld3985m27r.step",
      "lbr": "ld3985m27r.lbr"
    },
    "distributor_links": {
      "lcsc": "C5267949",
      "digikey": "497-LD3985M27RTR-ND",
      "mouser": "511-LD3985M27R"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T13:33:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-LD3985M27RTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-LD3985M27R",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VI",
        "type": "power_in",
        "description": "Input voltage of the LDO, operating from 2.5 V to 6 V, with absolute maximum DC input of -0.3 V to 6 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground pin for the regulator."
      },
      {
        "number": "3",
        "name": "VINH",
        "type": "input",
        "description": "Inhibit input: ON mode when VINH is at or above 1.2 V, OFF mode when VINH is at or below 0.4 V, and it must not be left floating because it is not internally pulled down or up."
      },
      {
        "number": "4",
        "name": "BYPASS",
        "type": "passive",
        "description": "Bypass pin where an external capacitor, usually 10 nF, must be connected to minimize output noise voltage."
      },
      {
        "number": "5",
        "name": "VO",
        "type": "power_out",
        "description": "Regulated output voltage of the LDO; for the LD3985M27R this is the 2.7 V version, delivering 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-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 2 (GND) is classed as power_in per the task's KiCad convention. Pin 4 (BYPASS) type 'passive' an; Figure 2 (top-view pin connection) is an image and was not available as text, so the physical positi; Output voltage 2.7 V for LD3985M27R comes from the ordering table (Table 7, page 17). The 150 mA lim"
        ],
        "pages_sent": 19,
        "cost_usd": 0.037,
        "at": "2026-10-11T13:33:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604433219211177984",
        "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"
    },
    "models_3d": [
      {
        "file": "ld3985m27r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ld3985m27r-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9fda03adb8141d1151582515ea53650d1e2a1a1ff5cbb66db7247d624a18c252",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-23-5L",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ld3985m27r"
  ],
  "discovery_pitch": "LD3985M27R (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",
    "ld3985m27r.kicad_sym",
    "ld3985m27r.kicad_mod",
    "ld3985m27r.glb",
    "ld3985m27r.step",
    "ld3985m27r.lbr",
    "docs/hero.png",
    "docs/ld3985m27r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ld3985m27r-hero.glb",
    "ld3985m27r-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}