LP3961EMPX-1.8

{
  "slug": "lp3961empx-1-8",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lp3961empx-1.8",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lp3961empx-1-8.kicad_sym",
    "lp3961empx-1-8.kicad_mod",
    "lp3961empx-1-8.glb",
    "lp3961empx-1-8.step",
    "lp3961empx-1-8.lbr",
    "docs/hero.png",
    "docs/lp3961empx-1-8-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lp3961empx-1-8-hero.glb",
    "lp3961empx-1-8-hero.overlay.json"
  ],
  "component": {
    "mpn": "LP3961EMPX-1.8",
    "manufacturer": "Texas Instruments",
    "package": "SOT-223-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lp3964",
    "parts": {
      "symbol": "lp3961empx-1-8.kicad_sym",
      "footprint": "lp3961empx-1-8.kicad_mod",
      "model_3d": "lp3961empx-1-8-hero.glb",
      "model_3d_plain": "lp3961empx-1-8.glb",
      "model_3d_step": "lp3961empx-1-8-etched.step",
      "model_3d_step_plain": "lp3961empx-1-8.step",
      "lbr": "lp3961empx-1-8.lbr"
    },
    "distributor_links": {
      "lcsc": "C2877959",
      "digikey": "2156-LP3961EMPX-1.8-ND",
      "mouser": "926-LP3961EMPX-18"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T17:58:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-LP3961EMPX-1.8-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "926-LP3961EMPX-18",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SD",
        "type": "input",
        "description": "Shutdown input with an operating range of −0.3 V to VIN + 0.3 V, and the datasheet requires it to be pulled high through a 10-kΩ pullup resistor."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply pin for the regulator, specified for 2.5 V to 7 V operation (survival −0.3 V to 7.5 V), with the minimum operating input equal to VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output voltage pin, rated for a maximum DC operating current of 0.8 A, short-circuit protected, with survival voltage −0.3 V to 7.5 V."
      },
      {
        "number": "4",
        "name": "ERROR",
        "type": "output",
        "description": "ERROR flag output that goes low when the output voltage drops 10% below nominal, with a maximum voltage of VIN + 0.3 V, and it must be pulled high through a 10-kΩ resistor or connected to ground if unused."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the regulator."
      }
    ],
    "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: The pin table on page 3 has blank or dropped cells, so the mapping was taken from the column order. ; ERROR pin is listed only in the LP3961 column (pin 4). Its I/O type is given as O in the table, but ; The SD and OUT descriptions use the operating and survival ratings from the Absolute Maximum and Rec"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0714,
        "at": "2026-10-08T17:56:56"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lp3964",
        "pages": 33,
        "sha256": "84dbca76243c9a35",
        "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": "lp3961empx-1-8.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.46,
          6.7,
          1.45
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "93d245764d20fcefd658e474348e5cf1042c75d684b18dc3207967e636396422",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp3961empx-1-8-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.46,
          6.7,
          1.45
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b5d8dd6dfe3f7a0014528235052499a5233c0cde2d9c6b1537cd9c1e7a0fd321",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}