LP2951ACMMX

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  "type": "component",
  "slug": "lp2951acmmx",
  "title": "LP2951ACMMX",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, VSSOP-8-0.65mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
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  "component": {
    "mpn": "LP2951ACMMX",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8-0.65mm",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302220030_Texas-Instruments-LP2951ACMMX-NOPB_C2872199.pdf",
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output voltage. Delivers up to 100 mA; programmable from 1.24 V to 29 V by external divider (or pin-strapped to 3 V, 3.3 V, or 5 V by tying FEEDBACK to VTAP). Requires an output capacitor for stability."
      },
      {
        "number": "2",
        "name": "SENSE",
        "type": "input",
        "description": "Output voltage sense input for the internal reference divider. Normally tied directly to OUT (or to the load Kelvin point) so the regulator senses the actual load voltage."
      },
      {
        "number": "3",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Logic-level shutdown input. Drive high to disable the regulator (output off) or low to enable normal operation. Referenced to GND, tolerates up to 30 V."
      },
      {
        "number": "4",
        "name": "GROUND",
        "type": "power_in",
        "description": "Device ground reference. Return for input supply, output capacitor, and internal reference."
      },
      {
        "number": "5",
        "name": "ERROR",
        "type": "output",
        "description": "Open-collector active-low error flag. Pulls low when the regulated output falls approximately 5% below its nominal value (dropout, over-current, thermal shutdown, or low VIN); typically used for power-on reset or brown-out indication. Requires an external pull-up resistor."
      },
      {
        "number": "6",
        "name": "VTAP",
        "type": "output",
        "description": "Tap of the internal precision resistor divider used to set the fixed 5 V / 3.3 V / 3 V output. Tie to FEEDBACK for the preset factory output; leave open when programming a custom output with an external divider."
      },
      {
        "number": "7",
        "name": "FEEDBACK",
        "type": "input",
        "description": "Voltage feedback input to the error amplifier (internal reference ≈ 1.235 V). Tie to VTAP for the preset output, or drive from an external R1/R2 divider from OUT to GND to program VOUT from 1.24 V to 29 V."
      },
      {
        "number": "8",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input supply. Operates from 2.3 V to 30 V; requires a small input decoupling capacitor (typ. 1 µF)."
      }
    ],
    "provenance": {
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        "pages": 61,
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "pin1": {
      "pad": "1",
      "at": [
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        -0.75
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a",
      "mark": "drawn"
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        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VSSOP-8-0.65mm",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "LP2951ACMMX (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
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  "variants": [
    {
      "mpn": "LP2951ACMMXDGK",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMXDGKR",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMX",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMXD",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMXM",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMXP",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMXN",
      "kind": "packaging"
    },
    {
      "mpn": "LP2951ACMMXNGT",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T17:48:16.117Z"
}