main
Ray Set visibility: public 4ba0a24 12d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm79l12f",
  "title": "LM79L12F",
  "brief": "HTC Korea TAEJIN Tech Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "manufacturer": "HTC Korea TAEJIN Tech",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f3301318b725055c0ede9609ee511cb5.pdf",
    "parts": {
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      "footprint": "lm79l12f.kicad_mod",
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      "model_3d_step_plain": "lm79l12f.step",
      "lbr": "lm79l12f.lbr"
    },
    "distributor_links": {
      "lcsc": "C2847004"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T06:47:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator; the datasheet defines it as Ground."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Negative input voltage; recommended range is -14.5V to -27V for the LM79L12, with an absolute maximum of -35V."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated negative output voltage of -12V nominal, delivering up to 100mA of output current."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 10,
        "cost_usd": 0.0006,
        "at": "2026-10-27T06:47:43"
      },
      "datasheet": {
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        "pages": 10,
        "sha256": "26e775a1971f58c3",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm79l12f-etched.step",
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        "units": "mm",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTC Korea TAEJIN Tech",
      "Package": "SOT-89-3",
      "Category": "Power Management ICs",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "26e775a1971f58c3b38b6326d930ba27f144cfb67cd4bd2c8a1c440053dd7cc8",
      "rows": [
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          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -35,
          "conditions": "LM79L12 ~ LM79L18",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10 sec)",
          "symbol": "TSOL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
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        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJOPR",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -14.5,
          "typ": null,
          "max": -27,
          "conditions": "LM79L12",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "Io",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating Virtual Junction Temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 125,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": -11.5,
          "typ": -12,
          "max": -12.5,
          "conditions": "25℃; 1mA ≤ Io ≤ 40mA; -14.5V ≤ VIN ≤ -27V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": -11.4,
          "typ": -12,
          "max": -12.6,
          "conditions": "0℃ ~ 125℃; 1mA ≤ Io ≤ 70mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "ΔVLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 50,
          "max": 250,
          "conditions": "-14.5V ≤ VIN ≤ -27V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "ΔVLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 40,
          "max": 200,
          "conditions": "-16V ≤ VIN ≤ -27V; 25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 24,
          "max": 100,
          "conditions": "1mA ≤ Io ≤ 100mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 15,
          "max": 50,
          "conditions": "1mA ≤ Io ≤ 40mA; 25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Bias Current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Bias Current",
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          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Bias Current Change",
          "symbol": "ΔIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "-16V ≤ VIN ≤ -27V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Bias Current Change",
          "symbol": "ΔIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "1mA ≤ Io ≤ 40mA; 0℃ ~ 125℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "VN",
          "kind": "electrical",
          "unit": "uV",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "10Hz ≤ f ≤ 100kHz; 25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 37,
          "typ": 42,
          "max": null,
          "conditions": "-15V ≤ VIN ≤ -25V, f=120Hz; 25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "VD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.7,
          "conditions": "25℃",
          "source_page": 7,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
    "lm79l12f"
  ],
  "discovery_pitch": "LM79L12F (HTC Korea TAEJIN Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "path": "docs/hero.png"
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    "lm79l12f.step",
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    "viewers/symbol.html",
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    "lm79l12f-hero.overlay.json",
    "lm79l12f-etched.glb"
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  "visibility": {
    "public": true
  }
}