L79L05ABUTR

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  "type": "component",
  "slug": "l79l05abutr",
  "title": "L79L05ABUTR",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
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  "component": {
    "mpn": "L79L05ABUTR",
    "manufacturer": "STMicroelectronics",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/l79l05abutr.pdf",
    "parts": {
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      "lbr": "l79l05abutr.lbr"
    },
    "distributor_links": {
      "digikey": "497-1217-2-ND",
      "mouser": "511-L79L05ABU-TR",
      "lcsc": "C157452"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common return. Reference for both input and output voltages. On the L79L negative regulator, GND is the most positive terminal in typical operation (VIN and VOUT are both negative with respect to this pin)."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated negative DC input. Absolute maximum -30 V for the -5 V version. Bypass to GND with a 0.33 µF capacitor located close to the pin. Note: in SOT-89 the metal tab/heatsink slug is electrically connected to this pin."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated -5 V negative output. Delivers up to 100 mA (internally current-limited, thermally protected). Bypass to GND with a 0.1 µF output capacitor for stability and transient response."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
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        "pages": 24,
        "sha256": "ba2a02bb5533f64a",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.95,
        -1.5
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-89-3@sha256:0b8db9f4a8f2547a",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-89-3",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ba2a02bb5533f64a",
      "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": 6,
          "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": 6,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "∆VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "VI = -7 to -20 V, TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
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          "name": "Line regulation",
          "symbol": "∆VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VI = -8 to -20 V, TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "∆VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "IO = 1 to 100 mA, TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "∆VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "IO = 1 to 40 mA, TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Id",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Id",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "TJ = 125 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "∆Id",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "IO = 1 to 40 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "∆Id",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "VI = -8 to -20 V",
          "source_page": 6,
          "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": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.7,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "B = 10 Hz to 100 kHz, TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -30,
          "conditions": "VO = -5 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": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "TOP",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "For L79L05AB",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-case",
          "symbol": "RthJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "SOT-89 (column placement to verify)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-ambient",
          "symbol": "RthJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 115,
          "conditions": "SOT-89",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
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  "variants": [
    {
      "mpn": "L79L05ABUTR",
      "kind": "packaging"
    },
    {
      "mpn": "L79L05ACUTR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L12ACUTR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L15ACUTR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L05ACZ",
      "kind": "unknown"
    },
    {
      "mpn": "L79L05ABZ-AP",
      "kind": "unknown"
    },
    {
      "mpn": "L79L08ACZ-AP",
      "kind": "unknown"
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    {
      "mpn": "L79L05ACZ-TR",
      "kind": "unknown"
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    {
      "mpn": "L79L12ACZ-TR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L05ABD13TR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L05ACD13TR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L08ACD13TR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L12ACD13TR",
      "kind": "unknown"
    },
    {
      "mpn": "L79L15ABD13TR",
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    {
      "mpn": "L79L15ACD13TR",
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  "updated_at": "2026-09-24T23:40:43.162Z"
}