main
Ray Set visibility: public 68e3975 20d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm317lbzg",
  "title": "LM317LBZG",
  "brief": "onsemi 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)",
    "lm317lbzg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM317LBZG",
    "manufacturer": "onsemi",
    "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/8588890158103584768",
    "parts": {
      "symbol": "lm317lbzg.kicad_sym",
      "footprint": "lm317lbzg.kicad_mod",
      "model_3d": "lm317lbzg-hero.glb",
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      "model_3d_step": "lm317lbzg-etched.step",
      "model_3d_step_plain": "lm317lbzg.step",
      "lbr": "lm317lbzg.lbr"
    },
    "distributor_links": {
      "lcsc": "C184354",
      "digikey": "2832-LM317LBZG-ND",
      "mouser": "863-LM317LBZG"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:24:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2832-LM317LBZG-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "863-LM317LBZG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Adjust",
        "type": "input",
        "description": "Adjustment terminal; the output is set by R1/R2 with the adjust current IAdj controlled to less than 100 µA and held constant."
      },
      {
        "number": "2",
        "name": "Vout",
        "type": "power_out",
        "description": "Regulated output terminal, which sources more than 100 mA over an output range of 1.2 V to 37 V with a maximum input-output differential of 40 Vdc."
      },
      {
        "number": "3",
        "name": "Vin",
        "type": "power_in",
        "description": "Unregulated input supply terminal; the input-output voltage differential must not exceed 40 Vdc."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "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 one TO-92 pin assignment (Pin 1 Adjust, 2 Vout, 3 Vin) for the Z suffix, Case 29; Pin types are assigned from KiCad ERC classes; the datasheet does not name a type for the Adjust pin"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0791,
        "at": "2026-10-19T01:24:08"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588890158103584768",
        "pages": 15,
        "sha256": "76fa7633208fd6fc",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "lm317lbzg.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm317lbzg-etched.step",
        "role": "eda",
        "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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        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "8338686a58798fd588a12c85afb422faecf690233e11faaa0f97ca5bfb4ff3b7",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "TO-92-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "76fa7633208fd6fccddc61b06f960e00c79f211fad2206ef434cf831a98a6aaf",
      "rows": [
        {
          "name": "Line Regulation",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.04,
          "conditions": "TA = 25°C, 3.0 V ≤ VI − VO ≤ 40 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation, VO ≤ 5.0 V",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 25,
          "conditions": "TA = 25°C, 10 mA ≤ IO ≤ Imax − LM317L, VO ≤ 5.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation, VO ≥ 5.0 V",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "% VO",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "TA = 25°C, 10 mA ≤ IO ≤ Imax − LM317L, VO ≥ 5.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Adjustment Pin Current",
          "symbol": "IAdj",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 50,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Adjustment Pin Current Change",
          "symbol": "IAdj",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.2,
          "max": 5,
          "conditions": "2.5 V ≤ VI − VO ≤ 40 V, PD ≤ Pmax, 10 mA ≤ IO ≤ Imax − LM317L",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": 1.25,
          "max": 1.3,
          "conditions": "3.0 V ≤ VI − VO ≤ 40 V, PD ≤ Pmax, 10 mA ≤ IO ≤ Imax − LM317L",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (second listed row)",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.02,
          "max": 0.07,
          "conditions": "3.0 V ≤ VI − VO ≤ 40 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation, VO ≤ 5.0 V (second listed row)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 70,
          "conditions": "10 mA ≤ IO ≤ Imax − LM317L, VO ≤ 5.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation, VO ≥ 5.0 V (second listed row)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "% VO",
          "min": null,
          "typ": 0.3,
          "max": 1.5,
          "conditions": "10 mA ≤ IO ≤ Imax − LM317L, VO ≥ 5.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum Load Current to Maintain Regulation",
          "symbol": "ILmin",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.5,
          "max": 10,
          "conditions": "VI − VO = 40 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "mA",
          "min": 100,
          "typ": null,
          "max": 200,
          "conditions": "VI − VO ≤ 6.25 V, PD ≤ Pmax, Z Package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "VI − VO ≤ 40 V, PD ≤ Pmax, TA = 25°C, Z Package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": null,
          "max": 80,
          "conditions": "VO = 1.2 V, f = 120 Hz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "CAdj = 10 μF, VO = 10.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Long Term Stability",
          "symbol": "S",
          "kind": "electrical",
          "unit": "%/1.0 k Hrs.",
          "min": null,
          "typ": 0.3,
          "max": 1,
          "conditions": "TJ = Thigh, TA = 25°C for endpoint measurements",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input-Output Voltage Differential",
          "symbol": "VI−VO",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJMAX",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Ambient (TO-92, Case 29)",
          "symbol": "RJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "Case 29 (TO−92)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Case (TO-92, Case 29)",
          "symbol": "RJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 83,
          "max": null,
          "conditions": "Case 29 (TO−92)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range (LM317LB family, includes LM317LBZG)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Ordering table group LM317LB; Tlow to Thigh = −40°C to +125°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Adjustable Output Voltage Range",
          "symbol": "VO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.2,
          "typ": null,
          "max": 37,
          "conditions": "Output adjustable between 1.2 V and 37 V (Features)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Power Dissipation (Pmax, test-note value)",
          "symbol": "Pmax",
          "kind": "recommended_operating",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 625,
          "conditions": "Note 4: Imax = 100 mA",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "lm317lbzg"
  ],
  "discovery_pitch": "LM317LBZG (onsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}