LP2951-33DR

{
  "schema_version": 1,
  "type": "component",
  "slug": "lp2951-33dr",
  "title": "LP2951-33DR",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "lp2951-33dr"
  ],
  "component": {
    "mpn": "LP2951-33DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lp2951-33.pdf",
    "parts": {
      "symbol": "lp2951-33dr.kicad_sym",
      "footprint": "lp2951-33dr.kicad_mod",
      "model_3d": "lp2951-33dr-etched.glb",
      "model_3d_plain": "lp2951-33dr.glb",
      "model_3d_step": "lp2951-33dr-etched.step",
      "model_3d_step_plain": "lp2951-33dr.step",
      "lbr": "lp2951-33dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C109381"
    },
    "pins": [
      {
        "number": "1",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated voltage output (3.3 V nominal for -33 version, 100 mA rated). Tie to SENSE for local regulation."
      },
      {
        "number": "2",
        "name": "SENSE",
        "type": "input",
        "description": "Remote-sense input. Connect to OUTPUT (with FEEDBACK tied to VTAP) to output the fixed voltage corresponding to the part version, or route to the load for remote sensing."
      },
      {
        "number": "3",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Active-high shutdown input. Drives the regulator into low-current shutdown when asserted. Absolute max range -1.5 to 30 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "5",
        "name": "ERROR",
        "type": "output",
        "description": "Active-low open-collector error flag. Pulls low when VOUT drops more than 6% below its nominal value. Requires an external pull-up."
      },
      {
        "number": "6",
        "name": "VTAP",
        "type": "output",
        "description": "Internal resistor-divider tap. Tie to FEEDBACK to program the fixed output voltage of the part version (3.3 V for -33)."
      },
      {
        "number": "7",
        "name": "FEEDBACK",
        "type": "input",
        "description": "Regulator feedback input (1.235 V reference internal). Tie to VTAP (with OUTPUT tied to SENSE) for the fixed output voltage, or drive from an external resistor divider to set an adjustable output between 1.235 V and 30 V."
      },
      {
        "number": "8",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated supply input. Operating range up to 30 V; absolute max -0.3 to 30 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lp2951-33.pdf",
        "pages": 35,
        "sha256": "5fc61cb191c95614",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "lp2951-33dr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp2951-33dr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "fa9bacd2069ccb5eced23122d7319ce785d49e2968bcfcb9907cdad664ad4496",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lp2951-33dr"
  ],
  "discovery_pitch": "LP2951-33DR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lp2951-33dr.kicad_sym",
    "lp2951-33dr.kicad_mod",
    "lp2951-33dr.glb",
    "lp2951-33dr.step",
    "lp2951-33dr-etched.step",
    "lp2951-33dr.lbr",
    "docs/hero.png",
    "docs/lp2951-33dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "LP2951-33DRD",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951-33DR",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951-33DRP",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951-33DRG",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T17:47:45.317Z"
}