main
Ray Set visibility: public fa07355 11d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "cos29502wu",
  "title": "COS29502WU",
  "brief": "COSINE Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. 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)",
    "cos29502wu",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "COS29502WU",
    "manufacturer": "COSINE",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/cb7272fef105bae4f1714fc27efcfd04.pdf",
    "parts": {
      "symbol": "cos29502wu.kicad_sym",
      "footprint": "cos29502wu.kicad_mod",
      "model_3d": "cos29502wu-hero.glb",
      "model_3d_plain": "cos29502wu-etched.glb",
      "model_3d_step": "cos29502wu-etched.step",
      "model_3d_step_plain": "cos29502wu.step",
      "lbr": "cos29502wu.lbr"
    },
    "distributor_links": {
      "lcsc": "C41428568"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:49:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "CMOS/TTL-compatible enable input for the COS29xx2, where logic-high (≥2.4V) enables and logic-low (≤0.8V) shuts down the output, and it may be tied to VIN if ON/OFF control is not needed."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply that feeds the output power device, with a recommended range of 4.5 to 26V and an absolute maximum of 40V."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, which is internally connected to the thermal tab."
      },
      {
        "number": "4",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output voltage, adjustable from 1.25V to 25V, which needs an output capacitor of at least 10µF at full load for stability."
      },
      {
        "number": "5",
        "name": "ADJ",
        "type": "input",
        "description": "Adjustable feedback input to the resistor divider from OUT to GND with a 1.24V typical reference, where the resistor from OUT to ADJ should not exceed 10kΩ."
      },
      {
        "number": "6",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The thermal TAB is internally connected to pin 3 (GND) and has no pin number in the datasheet. It wa; The datasheet pin table lists pin 1 as EN for COS29xx2 and as FLG for COS29xx3. COS29502WU is the xx"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0673,
        "at": "2026-10-26T18:48:54"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/cb7272fef105bae4f1714fc27efcfd04.pdf",
        "pages": 10,
        "sha256": "e0043457320aadcb",
        "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"
    },
    "models_3d": [
      {
        "file": "cos29502wu.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "94c2a3dc1aaad85b6b5193f97d9a7c61b4e28bac25952a1e629557bcf747e246",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cos29502wu-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "803b0d8c8c29c0a25baae384f70b297d574fd88daa2accbdb5a8093dcf63989b",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "COSINE",
      "Package": "TO-263-5",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "appearance": {
      "contacts": {
        "quote": "Internally connected directly to the device pin3 (GND). The thermal tab must be connected to a copper area on the PCB at the same",
        "page": 2,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "e0043457320aadcb86f066cc64b43134a7f5caf01adb52d5f5dcc72e3d1a3497"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e0043457320aadcb86f066cc64b43134a7f5caf01adb52d5f5dcc72e3d1a3497",
      "rows": [
        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "10mA ≤ IOUT ≤ IFL, (VOUT + 1V) ≤ VIN ≤ 26V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": 0.6,
          "conditions": "IOUT=10mA, (VOUT + 1V) ≤ VIN ≤ 26V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 3,
          "conditions": "10mA≦IOUT≦1.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Temperature Coefficient",
          "symbol": "ΔVo/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 20,
          "max": 100,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 125,
          "max": 250,
          "conditions": "ΔVOUT = -1%, COS2950x, IOUT=250mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 370,
          "max": 600,
          "conditions": "ΔVOUT = -1%, COS2950x, IOUT=5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "ΔVOUT = -1%, COS2950x, IOUT=2.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ground Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5.2,
          "max": null,
          "conditions": "COS2950x, IOUT=2.5A, VIN = VOUT +1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ground Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 28,
          "max": null,
          "conditions": "COS2950x, IOUT=5A, VIN = VOUT +1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ground Pin Current at Dropout",
          "symbol": "IGRNDDO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.9,
          "max": null,
          "conditions": "COS2950x, IOUT=10mA, VIN 0.5V less than specified VOUT",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 6.3,
          "max": 7.8,
          "conditions": "COS2950x, VOUT=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ground Current in Shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 5,
          "max": 75,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "en",
          "kind": "electrical",
          "unit": "µVrms",
          "min": null,
          "typ": 390,
          "max": null,
          "conditions": "CL=10µF, IL=100mA, 10Hz to 100kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "en",
          "kind": "electrical",
          "unit": "µVrms",
          "min": null,
          "typ": 211,
          "max": null,
          "conditions": "CL=33µF, IL=100mA, 10Hz to 100kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.22,
          "typ": 1.24,
          "max": 1.252,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage Temperature Coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Adjust Pin Bias Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Flag Output Low Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Flag Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Logic Voltage Low (OFF)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Logic Voltage High (ON)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Pin Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": null,
          "max": 24,
          "conditions": "VEN=0.8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Pin Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "VEN=26V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Regulator Output Current in Shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "–40°C≤TJ≤ +125°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable Input Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "-0.3 to VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Susceptibility, HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance, Junction-to-case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "TO-263",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 26,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cos29502wu"
  ],
  "discovery_pitch": "COS29502WU (COSINE) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
    "cos29502wu.kicad_sym",
    "cos29502wu.kicad_mod",
    "cos29502wu.glb",
    "cos29502wu.step",
    "cos29502wu.lbr",
    "docs/hero.png",
    "docs/cos29502wu-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cos29502wu-hero.glb",
    "cos29502wu-hero.overlay.json",
    "cos29502wu-etched.glb"
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  "visibility": {
    "public": true
  }
}