main
Ray Set visibility: public 15786e0 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm79l09",
  "title": "LM79L09",
  "brief": "HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lm79l09",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "LM79L09",
    "manufacturer": "HTC Korea TAEJIN Tech",
    "package": "TO-92-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588890172049645568",
    "parts": {
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      "footprint": "lm79l09.kicad_mod",
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      "model_3d_step": "lm79l09-etched.step",
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      "lbr": "lm79l09.lbr"
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    "distributor_links": {
      "lcsc": "C262531"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T21:19:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator (pin 1 in the TO-92/SOT-89 3-lead pin description table)."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage pin; for the LM79L09 the recommended input is -11.5 V to -24 V, and the absolute maximum input voltage for LM79L05 to LM79L09 is -30 V."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated negative output (-9 V nominal for LM79L09), supplying up to 100 mA of output current."
      }
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the pin numbers and names only in a shared table for TO-92 and SOT-89 (3 LEAD). ; The VIN description combines the absolute maximum rating (-30 V, shared across LM79L05 to LM79L09) w"
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        "at": "2026-10-17T21:17:55"
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        "pages": 10,
        "sha256": "0d20c07443475a7e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "sha256": "9a9d9a7cb3f3f1c1ea120eb43114e88b0e4e5a170e497ab4cccd0ecaf9e0b2a4",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTC Korea TAEJIN Tech",
      "Package": "TO-92-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "0d20c07443475a7eb4efb5cbacbce052ec0bedabcb40f2729517a8aa064d520a",
      "rows": [
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          "name": "Output Voltage (25℃, 1mA≤Io≤40mA, -11V≤VIN≤-24V)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": -8.64,
          "typ": -9,
          "max": -9.36,
          "conditions": "25℃; 1mA ≤ Io ≤ 40mA; -11V ≤ VIN ≤ -24V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (0℃~125℃, 1mA≤Io≤40mA, -11V≤VIN≤-24V)",
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          "kind": "electrical",
          "unit": "V",
          "min": -8.55,
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          "max": -9.45,
          "conditions": "0℃ ~ 125℃; 1mA ≤ Io ≤ 40mA; -11V ≤ VIN ≤ -24V",
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        {
          "name": "Output Voltage (0℃~125℃, 1mA≤Io≤70mA)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": -8.55,
          "typ": 9,
          "max": -9.45,
          "conditions": "0℃ ~ 125℃; 1mA ≤ Io ≤ 70mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (25℃, -11V≤VIN≤-24V)",
          "symbol": "ΔVLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 80,
          "max": 200,
          "conditions": "25℃; -11V ≤ VIN ≤ -24V",
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        },
        {
          "name": "Line Regulation (25℃, -12V≤VIN≤-24V)",
          "symbol": "ΔVLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 160,
          "conditions": "-12V ≤ VIN ≤ -24V",
          "source_page": 6,
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        },
        {
          "name": "Load Regulation (25℃, 1mA≤Io≤100mA)",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 17,
          "max": 90,
          "conditions": "25℃; 1mA ≤ Io ≤ 100mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (25℃, 1mA≤Io≤40mA)",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 8,
          "max": 45,
          "conditions": "25℃; 1mA ≤ Io ≤ 40mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias Current (25℃)",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.8,
          "max": 6.5,
          "conditions": "25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias Current (125℃)",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "125℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias Current Change (0℃~125℃)",
          "symbol": "ΔIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "-12V ≤ VIN ≤ -24V; 0℃ ~ 125℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias Current Change",
          "symbol": "ΔIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "1mA ≤ Io ≤ 40mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection (f=120Hz, 25℃)",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 35,
          "typ": 43,
          "max": null,
          "conditions": "-8V ≤ VIN ≤ -18V, f=120Hz, 25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage (25℃)",
          "symbol": "VD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.7,
          "conditions": "25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage (10Hz≤f≤100kHz, 25℃)",
          "symbol": "VN",
          "kind": "electrical",
          "unit": "uV",
          "min": null,
          "typ": 64,
          "max": null,
          "conditions": "10Hz ≤ f ≤ 100kHz, 25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (LM79L05 ~ LM79L09)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -30,
          "conditions": "LM79L05 ~ LM79L09",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Power Dissipation at TA = 25°C (TO-92)",
          "symbol": "PDMax",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.77,
          "conditions": "TA = 25°C; TO-92",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-To-Ambient (TO-92)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 162,
          "conditions": "TO-92",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10 sec)",
          "symbol": "TSOL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 sec soldering",
          "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": "Operating Junction Temperature Range (absolute maximum)",
          "symbol": "TJOPR",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (recommended, LM79L09)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -11.5,
          "typ": null,
          "max": -24,
          "conditions": "LM79L09",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "Io",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Virtual Junction Temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
    "lm79l09"
  ],
  "discovery_pitch": "LM79L09 (HTC Korea TAEJIN Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}