L78L05ACUTR

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  "title": "L78L05ACUTR",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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    "manufacturer": "STMicroelectronics",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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      "digikey": "497-1183-2-ND",
      "lcsc": "C43116"
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    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated +5 V output. Delivers up to 100 mA of load current. Bypass to GND with a 0.1 uF (or larger) ceramic capacitor per ST's recommended application."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common reference for both input and output. On the SOT-89 this pin also functions as the die-attach tab used for heat-sinking to the PCB copper."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated DC input supply. Absolute maximum 30 V for the 5 V variant; typical operating range roughly 7-20 V. Bypass to GND with a 0.33 uF (or larger) capacitor located close to the pin."
      }
    ],
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        "pages": 47,
        "sha256": "08da79fddb104256",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 3,
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        "refuses_to_fabricate": true
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    "pin1": {
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      "at": [
        -1.95,
        -1.5
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-89-3@sha256:0b8db9f4a8f2547a",
      "mark": "drawn"
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
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        "checked": "2026-10-07",
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  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-89-3",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
        {
          "name": "Output voltage (TJ = 25 °C)",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 4.8,
          "typ": 5,
          "max": 5.2,
          "conditions": "TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": null,
          "max": 5.25,
          "conditions": "IO = 1 to 40 mA, VI = 7 to 20 V",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "VI = 7 to 20 V, TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
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        {
          "name": "Line regulation",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VI = 8 to 20 V, TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "IO = 1 to 100 mA, TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "IO = 1 to 40 mA, TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Id",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Id",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "TJ = 125 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "ΔId",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "IO = 1 to 40 mA",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "ΔId",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "VI = 8 to 20 V",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "B = 10 Hz to 100 kHz, TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage rejection",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": 41,
          "typ": 49,
          "max": null,
          "conditions": "VI = 8 to 18 V, f = 120 Hz, IO = 40 mA, TJ = 25 °C",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.7,
          "conditions": "",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "DC input voltage (VO = 3.3 to 9 V; applies to 5 V output)",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "VO = 3.3 to 9 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range (L78LxxAC / L78LxxC)",
          "symbol": "TOP",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 125,
          "conditions": "for L78LxxAC / L78LxxC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-ambient (SOT-89)",
          "symbol": "RthJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 55,
          "conditions": "Considering 6 cm² of copper board heat-sink (note 1)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "VO = 3.3 to 9 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
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  "variants": [
    {
      "mpn": "L78L05ACUTR",
      "kind": "packaging"
    },
    {
      "mpn": "L78L05ABUTR",
      "kind": "unknown"
    },
    {
      "mpn": "L78L05ACZ",
      "kind": "unknown"
    },
    {
      "mpn": "L78L05ACZ-AP",
      "kind": "unknown"
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    {
      "mpn": "L78L05ACZ-TR",
      "kind": "unknown"
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    {
      "mpn": "L78L05ABZ",
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      "kind": "unknown"
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      "mpn": "L78L05ABZ-TR",
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    {
      "mpn": "L78L05CZ",
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    {
      "mpn": "L78L05ABD13TR",
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    {
      "mpn": "L78L05ACD13TR",
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    {
      "mpn": "L78L05CD13TR",
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  "updated_at": "2026-09-24T23:34:19.019Z",
  "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}