main
Ray Set visibility: public a80290c 11d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "fm9920d",
  "title": "FM9920D",
  "brief": "Shenzhen Fuman AC-DC Controllers & Regulators, SOP-8. 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 ics",
    "fm9920d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FM9920D",
    "manufacturer": "Shenzhen Fuman",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0c64c7d9108ec7f0c644aa4b68eeacd3.pdf",
    "parts": {
      "symbol": "fm9920d.kicad_sym",
      "footprint": "fm9920d.kicad_mod",
      "model_3d": "fm9920d-hero.glb",
      "model_3d_plain": "fm9920d-etched.glb",
      "model_3d_step": "fm9920d-etched.step",
      "model_3d_step_plain": "fm9920d.step",
      "lbr": "fm9920d.lbr"
    },
    "distributor_links": {
      "lcsc": "C2931999"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T21:07:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Source of the built-in synchronous rectifier MOSFET; pins 1, 2 and 3 must be connected together."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Source of the built-in synchronous rectifier MOSFET; pins 1, 2 and 3 must be connected together."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground; pins 1, 2 and 3 must be connected together."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Chip supply pin, charged from the output through the D pin; absolute maximum is -0.3 V to 7 V, start-up threshold 3.3 V and undervoltage lockout 2.9 V."
      },
      {
        "number": "5",
        "name": "D",
        "type": "passive",
        "description": "Drain of the built-in synchronous rectifier MOSFET, absolute maximum -0.3 V to 45 V; it also supplies the chip operating current to VCC, and added copper area is recommended for heat dissipation."
      },
      {
        "number": "6",
        "name": "D",
        "type": "passive",
        "description": "Drain of the built-in synchronous rectifier MOSFET, absolute maximum -0.3 V to 45 V; it also supplies the chip operating current to VCC, and added copper area is recommended for heat dissipation."
      },
      {
        "number": "7",
        "name": "D",
        "type": "passive",
        "description": "Drain of the built-in synchronous rectifier MOSFET, absolute maximum -0.3 V to 45 V; it also supplies the chip operating current to VCC, and added copper area is recommended for heat dissipation."
      },
      {
        "number": "8",
        "name": "D",
        "type": "passive",
        "description": "Drain of the built-in synchronous rectifier MOSFET, absolute maximum -0.3 V to 45 V; it also supplies the chip operating current to VCC, and added copper area is recommended for heat dissipation."
      }
    ],
    "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 does not give an ERC class for the D pins. 'passive' is an interpretation of a MOSFET ; The VCC limits (-0.3 V to 7 V absolute maximum) come from page 3 and the 3.3 V / 2.9 V thresholds co; The datasheet lists only the SOP-8 package and the ordering table gives 'FM9920D SOP-8', so this is "
        ],
        "pages_sent": 4,
        "cost_usd": 0.0222,
        "at": "2026-10-28T21:06:43"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0c64c7d9108ec7f0c644aa4b68eeacd3.pdf",
        "pages": 4,
        "sha256": "d2f3bcf306fdf118",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "fm9920d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fm9920d-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": "1684912d4817a112ccf6ec28f8f03d5d381f9c9bfca95f22d61c93578872a7b1",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "SOP-8",
      "Category": "Power Management ICs",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d2f3bcf306fdf1186f6ad57caebaa47be2db340d70c4c8d2af3dd2f1a0f8e709",
      "rows": [
        {
          "name": "Drain pin voltage D (absolute maximum)",
          "symbol": "D",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Internal supply pin VCC (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range TJ",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -20,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range TSTG",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD rating",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Human body model, 100pF discharged through 1.5kΩ (note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent operating current",
          "symbol": "Iop",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 180,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VCC start-up threshold voltage",
          "symbol": "VCC_ON",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.3,
          "max": null,
          "conditions": "VCC rising",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VCC undervoltage lockout voltage",
          "symbol": "VCC_UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.9,
          "max": null,
          "conditions": "VCC falling",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Synchronous rectifier turn-on voltage threshold",
          "symbol": "SR_ON",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": -150,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Synchronous rectifier turn-off voltage threshold",
          "symbol": "SR_OFF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": -3,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power switch minimum on time",
          "symbol": "Ton_min",
          "kind": "electrical",
          "unit": "uS",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power switch minimum off time",
          "symbol": "Toff_min",
          "kind": "electrical",
          "unit": "uS",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power switch on-resistance RDS_ON",
          "symbol": "RDS_ON",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 15,
          "max": 21,
          "conditions": "Vgs=10V Id=8A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Built-in power switch breakdown voltage",
          "symbol": "BVDSS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "VGS=0V ID=250uA",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "fm9920d"
  ],
  "discovery_pitch": "FM9920D (Shenzhen Fuman) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "fm9920d.lbr",
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    "docs/fm9920d-datasheet.pdf",
    "viewers/symbol.html",
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    "fm9920d-etched.glb"
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  "visibility": {
    "public": true
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}