main
Ray Set visibility: public 5cc864a 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sy5231abc",
  "title": "SY5231ABC",
  "brief": "Silergy Corp AC-DC Controllers And Regulators, SOT-23-6. 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)",
    "sy5231abc",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SY5231ABC",
    "manufacturer": "Silergy Corp",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590922735654813696",
    "parts": {
      "symbol": "sy5231abc.kicad_sym",
      "footprint": "sy5231abc.kicad_mod",
      "model_3d": "sy5231abc-hero.glb",
      "model_3d_plain": "sy5231abc-etched.glb",
      "model_3d_step": "sy5231abc-etched.step",
      "model_3d_step_plain": "sy5231abc.step",
      "lbr": "sy5231abc.lbr"
    },
    "distributor_links": {
      "lcsc": "C21726214"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:54:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply pin: connect it to the converter output when the SR MOSFET is on the low side, or to GND when the SR MOSFET is on the high side."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Connect this pin to the SR MOSFET source terminal."
      },
      {
        "number": "3",
        "name": "REG",
        "type": "passive",
        "description": "Connect a resistor between this pin and GND to set the falling slope reference time threshold (TREF)."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_out",
        "description": "Output of the internal LDO that powers the control unit and GATE drive circuit; connect a 0.1µF or larger ceramic capacitor between VDD and GND."
      },
      {
        "number": "5",
        "name": "GATE",
        "type": "output",
        "description": "Connect this pin to the GATE terminal of the SR MOSFET."
      },
      {
        "number": "6",
        "name": "DSEN",
        "type": "input",
        "description": "Connect this pin to the SR MOSFET drain to sense drain voltage; it is also used as a self-supply channel."
      }
    ],
    "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: DSEN both senses the drain voltage and acts as a supply channel (self-supply), so its ERC class 'inp; Pin numbers and names are taken from the pin description table on page 2. The pinout drawing text on"
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        "pages_sent": 12,
        "cost_usd": 0.069,
        "at": "2026-10-19T05:51:46"
      },
      "datasheet": {
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        "pages": 12,
        "sha256": "7c092821f4e6ba58",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "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": "sy5231abc.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": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "168351702121df737787dc53408cc924a79ead6da39b12b324305fc2fcf8af68",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Silergy Corp",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "7c092821f4e6ba58fa4ac880e09e2eff5c331f9f3a6587b42a68210cf2a0d645",
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          "name": "REG pin voltage",
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        {
          "name": "VDD pin current",
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          "name": "Power dissipation",
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          "conditions": "TA = 25°C, SOT23-6",
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        {
          "name": "Junction temperature range",
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        {
          "name": "Lead temperature (soldering)",
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        {
          "name": "Junction temperature operating range",
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        {
          "name": "Ambient temperature operating range",
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          "min": -40,
          "typ": null,
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        },
        {
          "name": "Threshold of switching to VIN supply channel",
          "symbol": "VVIN_VINSPY",
          "kind": "electrical",
          "unit": "V",
          "min": 4.7,
          "typ": 4.85,
          "max": 5,
          "conditions": "VVIN is rising",
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          "name": "Threshold of switching to DSEN supply channel",
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          "kind": "electrical",
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          "min": 4.6,
          "typ": 4.75,
          "max": 4.9,
          "conditions": "VVIN is falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD ON threshold",
          "symbol": "VVDD_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 5.26,
          "max": 5.52,
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          "source_page": 4,
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        },
        {
          "name": "UVLO hysteresis",
          "symbol": "VVDD_HYS",
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          "unit": "V",
          "min": 2.35,
          "typ": 2.5,
          "max": 2.75,
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          "source_page": 4,
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        },
        {
          "name": "VDD regulation voltage when VIN pin is active to supply IC",
          "symbol": "VVDD_REG_VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 8.65,
          "typ": 9.1,
          "max": 9.55,
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        },
        {
          "name": "VDD regulation voltage when DSEN pin is active to supply IC",
          "symbol": "VVDD_REG_DSEN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": 5.1,
          "max": 5.35,
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          "source_page": 4,
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        },
        {
          "name": "Operating current",
          "symbol": "IVDD_OP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 3.5,
          "conditions": "VVDD=9V,CGATE=2.2nF, FSW=100kHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum VDD pin capacitor charging current (VIN pin active)",
          "symbol": "IVDD_CHARGE_MAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 12,
          "max": 17,
          "conditions": "VIN pin is active to charge VDD capacitor",
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        {
          "name": "Maximum VDD pin capacitor charging current (DSEN pin active)",
          "symbol": "IVDD_CHARGE_MAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": 50,
          "conditions": "DSEN pin is active to charge VDD capacitor",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IVDD_STBY",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 195,
          "max": 240,
          "conditions": "Under standby mode",
          "source_page": 4,
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        {
          "name": "PVS initial enable threshold",
          "symbol": "VPVS_INITIAL_EN",
          "kind": "electrical",
          "unit": "mV",
          "min": 120,
          "typ": 150,
          "max": 180,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Blanking time for sample PVS pin voltage",
          "symbol": "TPVS_BLK",
          "kind": "timing",
          "unit": "ns",
          "min": 210,
          "typ": 310,
          "max": 410,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low level threshold to sense VDSEN falling time",
          "symbol": "VDSEN_LTH",
          "kind": "electrical",
          "unit": "mV",
          "min": 0,
          "typ": 20,
          "max": 40,
          "conditions": "VDSEN is falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "DSEN threshold to force turn off",
          "symbol": "VDESN_OFF_TH",
          "kind": "electrical",
          "unit": "mV",
          "min": 5,
          "typ": 15,
          "max": 25,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Closed loop VDSEN regulation voltage level",
          "symbol": "VDS_REG",
          "kind": "electrical",
          "unit": "mV",
          "min": -54,
          "typ": -33,
          "max": -22,
          "conditions": "SR MOSFET is conducting",
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        {
          "name": "SR MOSFET turn off threshold",
          "symbol": "VOFF_TH",
          "kind": "electrical",
          "unit": "mV",
          "min": -10,
          "typ": 0,
          "max": 10,
          "conditions": "VDSEN is rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Time threshold IC go into sleep",
          "symbol": "TSTANDBY",
          "kind": "timing",
          "unit": "us",
          "min": 16,
          "typ": 20,
          "max": 24,
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        {
          "name": "Resistor to program frequency option",
          "symbol": "RREG",
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          "min": 75,
          "typ": 100,
          "max": 125,
          "conditions": "RREG=50k",
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        {
          "name": "Resistor to program frequency option",
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          "min": 225,
          "typ": 300,
          "max": 375,
          "conditions": "RREG=300k",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Gate pin clamped current before UVLO ON",
          "symbol": "ICLP",
          "kind": "electrical",
          "unit": "mA",
          "min": 160,
          "typ": 200,
          "max": 240,
          "conditions": "Vgs=1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max. source current",
          "symbol": "ISOURCE_MAX",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.375,
          "max": 0.5,
          "conditions": "VVDD=9V, CLOAD=2.2nF, Vgs from 1V to 8V",
          "source_page": 4,
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        {
          "name": "Max. sink current",
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        {
          "name": "Minimum ON time",
          "symbol": "TON_MIN",
          "kind": "timing",
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          "typ": 750,
          "max": 1050,
          "conditions": "",
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        },
        {
          "name": "Minimum OFF time",
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          "conditions": "CGATE=2.2nF",
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          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "CGATE=2.2nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown temperature",
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          "kind": "thermal",
          "unit": "°C",
          "min": 150,
          "typ": 160,
          "max": 170,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Hysteresis to resume operating",
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          "kind": "thermal",
          "unit": "°C",
          "min": 15,
          "typ": 20,
          "max": 25,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance, junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "SOT23-6 (Note 2)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance, junction to case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "SOT23-6",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "SY5231ABC (Silergy Corp) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "public": true
  }
}