main
Ray Set visibility: public 05c0a7e 6d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "gr2188a22m3g",
  "title": "GR2188A22M3G",
  "brief": "GR DC-DC Converters, SOT-23. 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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    "gr2188a22m3g",
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  "component": {
    "mpn": "GR2188A22M3G",
    "manufacturer": "GR",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602690340973932544",
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      "lbr": "gr2188a22m3g.lbr"
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    "distributor_links": {
      "lcsc": "C19631816"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:56:01Z",
      "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": "Chip ground terminal."
      },
      {
        "number": "2",
        "name": "Lx",
        "type": "passive",
        "description": "Inductor connection (switch node); the datasheet gives a 1000 mA maximum Lx current and a 6 V maximum voltage on Lx and VOUT."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Voltage output terminal, fixed at 2.2 V ±2.5% for this variant, with a 6 V maximum rating on VOUT."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN suffix 'M3G' is not defined in the datasheet naming rule. It lists MR = SOT23-3, ML = large ; Pin types for Lx (passive) and VOUT (power_out) are my classification of the functions the datasheet",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1168,
        "at": "2026-10-18T12:53:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602690340973932544",
        "pages": 9,
        "sha256": "7f53c339422b1063",
        "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": [
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          3,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "centre_offset_mm": 0,
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        "sha256": "2a885175b7c8b6dd88ef3ca578da2d58d326fe296d25d74c209d00ed79aa47a7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "GR",
      "Package": "SOT-23",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7f53c339422b10637d681a68baf0422a356722ec74937d24e9ab82686c4c28c5",
      "rows": [
        {
          "name": "Input voltage (VIN)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.9,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy (printed ±2.5%)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -2.5,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage on VOUT and LX pins",
          "symbol": "Vmax",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "Supplied to VOUT and LX pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum LX pin current",
          "symbol": "ILXmax",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "LX pin",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "SOT23-3 package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "Tw",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -20,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tc",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "Th",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 s",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Startup voltage",
          "symbol": "VSTART",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.75,
          "max": 1,
          "conditions": "ILOAD=1mA, VIN: 0→2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Hold voltage",
          "symbol": "VHOLD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "ILOAD=1mA, VIN: 2→0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (Iq1)",
          "symbol": "Iq1",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VIN=2V, VOUT=VOUT(T)+0.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (Iq2)",
          "symbol": "Iq2",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown quiescent current",
          "symbol": "Istb",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "VIN=1.5V, VCE=0V, VOUT=Open",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable-low current",
          "symbol": "ICEL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VIN=VOUT=2V, VCE=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable-high current",
          "symbol": "ICEH",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.01,
          "max": null,
          "conditions": "VIN=VOUT=VCE=2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable high threshold voltage",
          "symbol": "VCEH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "VIN=1.5V, VOUT=VOUT(T)*0.98, VCE=0→VIN, OSC starts",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable low threshold voltage",
          "symbol": "VCEL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "VIN=1.5V, VOUT=VOUT(T)*0.98, VCE=0.6→GND, OSC stops",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lx switch on-resistance",
          "symbol": "RON_SW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "VIN=1.5V, VOUT=2.7V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Synchronous rectifier on-resistance",
          "symbol": "ROP_SW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2.8,
          "max": null,
          "conditions": "VIN=2.7V, VCE=0, IOUT=200mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lx switching frequency",
          "symbol": "f",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "VIN=1.5V, VOUT=VOUT(T)*0.98",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Efficiency",
          "symbol": "η",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "VIN=1.5V, Iout=10mA",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "GR2188A22M3G (GR) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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