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Ray Set visibility: public dfa2e75 9h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lr8321a-t50",
  "title": "LR8321A-T50",
  "brief": "LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. 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)",
    "lr8321a-t50",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "LR8321A-T50",
    "manufacturer": "LR",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756847196501221376",
    "parts": {
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      "footprint": "lr8321a-t50.kicad_mod",
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      "lbr": "lr8321a-t50.lbr"
    },
    "distributor_links": {
      "lcsc": "C5129919"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T14:57:56Z",
      "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; the datasheet states that all voltages are specified relative to GND unless otherwise noted."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage pin; for the LR8321A-T50 the fixed output is 5.0V (VOUT*0.98 to VOUT*1.02 at 10mA), with output current rated to 100mA and OCP set to 120mA."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage pin; the input voltage is rated to 24V in the electrical characteristics (32V maximum absolute rating), and at least a 1µF ceramic input bypass capacitor is recommended."
      }
    ],
    "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": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table gives both SOT23-3 and SOT89-3 pin columns. The SOT23-3 column was used for this packa; The datasheet lists the part as LR8321A-T50/-M50 sold in SOT23-3L/SOT89-3. The SOT23-3L pinout was e; The pin descriptions are built from the datasheet's pin table (section 6), electrical characteristic"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0343,
        "at": "2026-10-17T14:56:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756847196501221376",
        "pages": 12,
        "sha256": "75e1ff006d959d36",
        "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"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "file": "lr8321a-t50-etched.step",
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        "sha256": "b81c730aa8340d37f1d2747e90e0d4384a6ccce7a1d0832662fd8e9fb0884862",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "LR",
      "Package": "SOT-23-3L",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "75e1ff006d959d365a4156735a31a2a522fc3cf7166f3f2792f98ad4a44ec9ff",
      "rows": [
        {
          "name": "Maximum input supply voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "SOT23-3L",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -3000,
          "typ": null,
          "max": 3000,
          "conditions": "H.B.M POS/NEG",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 24,
          "conditions": "ISS=5uA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "VOUT+2V≤VIN≤24V, IOUT=5mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VIN=VOUT+2V, 1mA≤IOUT≤100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDrop",
          "kind": "electrical",
          "unit": "mV",
          "min": 320,
          "typ": 390,
          "max": 450,
          "conditions": "IOUT=50mA, ΔVOUT=±2%*VOUT",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDrop",
          "kind": "electrical",
          "unit": "mV",
          "min": 600,
          "typ": 750,
          "max": 900,
          "conditions": "IOUT=100mA, ΔVOUT=±2%*VOUT",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1.5,
          "max": 5,
          "conditions": "VIN=VOUT+2V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient",
          "symbol": "ΔVOUT/(ΔTa*VOUT)",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -100,
          "typ": 50,
          "max": 100,
          "conditions": "VIN=VOUT+2V, IOUT=10mA, -40℃≤Ta≤85℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature (absolute limit)",
          "symbol": "TJ(MAX)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature (recommended, normal operation)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "recommended for normal operation",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VIN=VOUT+2V, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "VIN=VOUT+2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "VIN=VOUT+2V, IOUT=10mA, f=100Hz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "VIN=VOUT+2V, IOUT=10mA, f=1kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VIN=VOUT+2V, IOUT=10mA, f=10kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISCP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "VOUT=GND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent protection current",
          "symbol": "IOCP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "SOT23-3L",
          "source_page": 8,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "LR8321A-T50 (LR) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}