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Ray Set visibility: public df97278 21d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "lm321g-af5-r",
  "title": "LM321G-AF5-R",
  "brief": "UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. 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)",
    "lm321g-af5-r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM321G-AF5-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "SOT-25",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603058531306254336",
    "parts": {
      "symbol": "lm321g-af5-r.kicad_sym",
      "footprint": "lm321g-af5-r.kicad_mod",
      "model_3d": "lm321g-af5-r-hero.glb",
      "model_3d_plain": "lm321g-af5-r-etched.glb",
      "model_3d_step": "lm321g-af5-r-etched.step",
      "model_3d_step_plain": "lm321g-af5-r.step",
      "lbr": "lm321g-af5-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C7464710"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:21:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting input; the common-mode input range is 0 V to V+ -1.5 V (CMRR ≥ 50 dB) and it may be driven up to +32 V without damage."
      },
      {
        "number": "2",
        "name": "V-",
        "type": "power_in",
        "description": "Negative supply rail, stated in the datasheet as ground; the input common-mode range includes this ground, allowing single-supply operation."
      },
      {
        "number": "3",
        "name": "-IN",
        "type": "input",
        "description": "Inverting input; the common-mode input range is 0 V to V+ -1.5 V (CMRR ≥ 50 dB) and it may be driven up to +32 V without damage."
      },
      {
        "number": "4",
        "name": "OUTPUT",
        "type": "output",
        "description": "Output; short-circuit to ground is limited to approximately 40 mA independent of V+, and continuous shorts above V+ = 15 V can exceed power dissipation ratings."
      },
      {
        "number": "5",
        "name": "V+",
        "type": "power_in",
        "description": "Positive power supply; the supply voltage range is +3 V to +32 V (absolute maximum supply voltage 32 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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 a single PIN NO./PIN NAME table (page 2) and does not print a separate pinout pe; Pin 2 is named V- in the pin-name column but described as 'Ground' in the description column; it is "
        ],
        "pages_sent": 7,
        "cost_usd": 0.0335,
        "at": "2026-10-18T22:18:59"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603058531306254336",
        "pages": 7,
        "sha256": "8b63528a75749946",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "file": "lm321g-af5-r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm321g-af5-r-etched.step",
        "role": "eda",
        "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,
        "footprint_binding": "identity",
        "sha256": "6aecf7ca40b3e0770a18aef80b19aa892136a1aabaae71d7b8820d56ca760e72",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "SOT-25",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8b63528a7574994670d22fd1a8b49ac6f70576122263783dc7f84339eed4c9c5",
      "rows": [
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 7,
          "conditions": "(Note 3)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 45,
          "max": 250,
          "conditions": "(Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 5,
          "max": 50,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Common-Mode Voltage Range",
          "symbol": "VCM",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "V+=30V (Note 5); For CMRR>=50dB",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Large Signal Voltage Gain",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "V/mV",
          "min": 25,
          "typ": 100,
          "max": null,
          "conditions": "V+=15V, RL=2kΩ, VO=1.4V~11.4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Large Signal Voltage Gain",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "V/mV",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "V+=15V, RL=2kΩ, VO=1.4V~11.4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 65,
          "typ": 100,
          "max": null,
          "conditions": "RS≤10kΩ, V+≤5V~30V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Common Mode Rejection Ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 65,
          "typ": 85,
          "max": null,
          "conditions": "RS≤10kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Swing High",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 26,
          "typ": null,
          "max": null,
          "conditions": "V+=30V, RL=2kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Swing High",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 27,
          "typ": 28,
          "max": null,
          "conditions": "V+=30V, RL=10kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Swing Low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 20,
          "conditions": "V+=5V, RL=10kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, No Load",
          "symbol": "IS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.43,
          "max": 1.15,
          "conditions": "V+=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, No Load",
          "symbol": "IS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.66,
          "max": 2.85,
          "conditions": "V+=30V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current Sourcing",
          "symbol": "ISOURCE",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": 40,
          "max": null,
          "conditions": "VID=+1V, V+=15V, VO=2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current Sinking",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": 20,
          "max": null,
          "conditions": "VID=-1V, V+=15V, VO=2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current Sinking",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "µA",
          "min": 12,
          "typ": 100,
          "max": null,
          "conditions": "VID=-1V, V+=15V, VO=0.2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Short Circuit to Ground",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": 85,
          "conditions": "V+=15V (Note 6)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (V+ - V−)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 32,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VIN<−0.3V (Note 2)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "(Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 32,
          "conditions": "Wide supply voltage range (Features)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Slew Rate",
          "symbol": "SR",
          "kind": "electrical",
          "unit": "V/µs",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "V+=15V, RL=2kΩ, VIN=0.5~3V, CL=100pF, Unity Gain",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Gain Bandwidth Product",
          "symbol": "GBW",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "V+=30V, f=100kHz, VIN=10mV, RL=2kΩ, CL=100pF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Phase Margin",
          "symbol": "φm",
          "kind": "electrical",
          "unit": "deg",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Total Harmonic Distortion",
          "symbol": "THD",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.015,
          "max": null,
          "conditions": "f=1kHz, AV=20dB, RL=2kΩ, VO=2VPP, CL=100pF, V+=30V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Equivalent Input Noise Voltage",
          "symbol": "en",
          "kind": "electrical",
          "unit": "nV Hz",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "f=1kHz, RS=100Ω, V+=30V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction to Ambient Thermal Resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°С/W",
          "min": null,
          "typ": 265,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm321g-af5-r"
  ],
  "discovery_pitch": "LM321G-AF5-R (UTC Unisonic Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
    "public": true
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}