main
Ray Set visibility: public 2fbc37f 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "pj78m05sq",
  "title": "PJ78M05SQ",
  "brief": "PJSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. 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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    "mpn": "PJ78M05SQ",
    "manufacturer": "PJSEMI",
    "package": "SOT-89",
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    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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    "parts": {
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      "footprint": "pj78m05sq.kicad_mod",
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      "model_3d_step": "pj78m05sq-etched.step",
      "model_3d_step_plain": "pj78m05sq.step",
      "lbr": "pj78m05sq.lbr"
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    "distributor_links": {
      "lcsc": "C41784044"
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    "distributor_check": {
      "checked_at": "2026-10-14T19:03:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
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    },
    "pins": [
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        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 5 V output (4.75 V to 5.25 V over IO = 5 mA to 350 mA, VI = 7 V to 20 V), rated for output current up to 500 mA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference pin for the regulator."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply, with an input voltage rating of up to 35 V (absolute maximum VI = 35 V)."
      }
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    "provenance": {
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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": [],
        "pages_sent": 3,
        "cost_usd": 0.0224,
        "at": "2026-10-14T19:02:40"
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        "pages": 3,
        "sha256": "aee633fc234e68f8",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "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": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
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        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-14",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "PJSEMI",
      "Package": "SOT-89",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "aee633fc234e68f83eb32e613c25f6c6cd5028b5a1b9ed154278b602514c0316",
      "rows": [
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          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "",
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        },
        {
          "name": "Junction Temperature",
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          "min": null,
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        },
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          "name": "Maximum Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "P.C.B. mounted with 2.0\" X 2.0\" (5 X 5 cm) copper pad areas (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
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        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
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          "name": "Output Voltage",
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          "min": 4.8,
          "typ": 5,
          "max": 5.2,
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        {
          "name": "Output Voltage",
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          "conditions": "",
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        },
        {
          "name": "Line Regulation",
          "symbol": "△VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VI=7V to 25V, IO=200mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VI=8V to 25V, IO=200mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "△VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "IO=5mA to 500mA, TJ=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "△VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "IO=5mA to 200 mA, TJ=25°C",
          "source_page": 2,
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        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 62,
          "typ": null,
          "max": null,
          "conditions": "VI=8V to18V, f=120Hz, IO=300mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "Quiescent Current Change",
          "symbol": "△IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "VI=8V to 25V,IO=200mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change",
          "symbol": "△IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "IO=5mA to 350mA",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
    "pj78m05sq"
  ],
  "discovery_pitch": "PJ78M05SQ (PJSEMI) 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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}