LM2951D-5.0

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  "title": "LM2951D-5.0",
  "brief": "HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "mpn": "LM2951D-5.0",
    "manufacturer": "HTC Korea TAEJIN Tech",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917727918899200",
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      "digikey": "5536-LM2951D-5.0TR-ND"
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      {
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        "name": "Output",
        "type": "power_out",
        "description": "Regulated output of the LM2951D, which is guaranteed to supply 100 mA and is protected by current and thermal limiting, and the datasheet recommends 1 µF for stability."
      },
      {
        "number": "2",
        "name": "Sense",
        "type": "input",
        "description": "Output sense input, which the datasheet's 8-pin test condition ties to the output (VOUT = XX V) for regulation measurements."
      },
      {
        "number": "3",
        "name": "Shutdown",
        "type": "input",
        "description": "Logic-compatible shutdown input where the regulator is on when VSHUTDOWN is 0.8 V or lower and off when VSHUTDOWN is 2 V or higher, with an absolute maximum of -1.5 to +30 V."
      },
      {
        "number": "4",
        "name": "Ground",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      },
      {
        "number": "5",
        "name": "Error",
        "type": "output",
        "description": "Error comparator output that warns of output dropout, going low when the output falls about 5% below nominal (7.5% guaranteed), with an absolute maximum of -0.3 to +30 V."
      },
      {
        "number": "6",
        "name": "Tap",
        "type": "passive",
        "description": "Internal resistor divider tap at the -XX V output voltage, to which the Feedback pin is tied for fixed-voltage operation."
      },
      {
        "number": "7",
        "name": "Feedback",
        "type": "input",
        "description": "Error amplifier feedback input, tied to the Tap for fixed-voltage versions or driven from an external divider for programmable output from 1.24 V to 29 V, with an absolute maximum of -0.3 to +30 V."
      },
      {
        "number": "8",
        "name": "Input",
        "type": "power_in",
        "description": "Unregulated input supply, rated -0.3 to +30 V absolute maximum, which must be at least 2.3 V over temperature at very low programmed output voltages."
      }
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    "provenance": {
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The 8-pin pin list (Output, Sense, Shutdown, Ground, Error, Tap, Feedback, Input) is printed under t; The LM2951D-5.0 is covered by the LM2951D-XX family in the ordering table; the datasheet does not li",
          "1/8 pin names appear NOWHERE in the datasheet text: ['4:Ground@p1']"
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        "at": "2026-10-19T01:03:24"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "HTC Korea TAEJIN Tech",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
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          "name": "Output Voltage (25℃ row, multiplier of nominal V0)",
          "symbol": "V0",
          "kind": "tolerance",
          "unit": "|V0|",
          "min": 0.985,
          "typ": null,
          "max": 1.015,
          "conditions": "TJ=25℃ (Ta=25℃ header), IL=100㎂ (row mapping inferred, see review)",
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        },
        {
          "name": "Output Voltage (full operating temperature, multiplier of nominal V0)",
          "symbol": "V0",
          "kind": "tolerance",
          "unit": "|V0|",
          "min": 0.976,
          "typ": null,
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          "conditions": "-25℃ ≤ TJ ≤ 85℃, Full Operating Temperature (row mapping inferred)",
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        {
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        {
          "name": "Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.21,
          "typ": 1.235,
          "max": 1.26,
          "conditions": "8-pin versions only",
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        {
          "name": "Reference Voltage Over Temperature",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.185,
          "typ": null,
          "max": 1.285,
          "conditions": "Note 7: Vref ≤ Vout ≤ (Vin-1V), 2.3V ≤ Vin ≤ 30V, 100uA ≤ IL ≤ 100mA, TJ ≤ TJMAX",
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        },
        {
          "name": "Feedback Pin Bias Current",
          "symbol": "IFB",
          "kind": "electrical",
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          "min": null,
          "typ": 20,
          "max": 40,
          "conditions": "8-pin versions only",
          "source_page": 4,
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        },
        {
          "name": "Reference Voltage Temperature Coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "Note 8: worst case voltage change divided by total temperature range",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Feedback Pin Bias Current Temperature Coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "nA/℃",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "Dropout Voltage at 100mA",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "㎷",
          "min": null,
          "typ": 380,
          "max": 450,
          "conditions": "IL=100㎃ (Note 4: output drops 100㎷ below nominal measured at 1V differential)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Logic Voltage Low (Regulator ON)",
          "symbol": "VS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "Shutdown input, low (Regulator ON)",
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          "source": "datasheet"
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        {
          "name": "Input Logic Voltage High (Regulator OFF)",
          "symbol": "VS",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "Shutdown input, high (Regulator OFF)",
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        {
          "name": "Input Supply Voltage (absolute maximum)",
          "symbol": "VIN",
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          "name": "Feedback Input Voltage (absolute maximum)",
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        {
          "name": "Shutdown Input Voltage (absolute maximum)",
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        {
          "name": "Error Comparator Output (absolute maximum)",
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        {
          "name": "Operating Junction Temperature Range",
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          "unit": "℃",
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        {
          "name": "Storage Temperature Range",
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        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "5 seconds, soldering",
          "source_page": 2,
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