LP28303ASPF

{
  "slug": "lp28303aspf",
  "version": "0.1.0",
  "type": "component",
  "description": "LOWPOWER Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lp28303aspf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lp28303aspf.kicad_sym",
    "lp28303aspf.kicad_mod",
    "lp28303aspf.glb",
    "lp28303aspf.step",
    "lp28303aspf.lbr",
    "docs/hero.png",
    "docs/lp28303aspf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lp28303aspf-hero.glb",
    "lp28303aspf-hero.overlay.json",
    "lp28303aspf-etched.glb"
  ],
  "component": {
    "mpn": "LP28303ASPF",
    "manufacturer": "LOWPOWER",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912947930812417",
    "parts": {
      "symbol": "lp28303aspf.kicad_sym",
      "footprint": "lp28303aspf.kicad_mod",
      "model_3d": "lp28303aspf-hero.glb",
      "model_3d_plain": "lp28303aspf-etched.glb",
      "model_3d_step": "lp28303aspf-etched.step",
      "model_3d_step_plain": "lp28303aspf.step",
      "lbr": "lp28303aspf.lbr"
    },
    "distributor_links": {
      "lcsc": "C517001"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:11:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output that is pulled low by an internal N-channel MOSFET while the battery is charging, and is high impedance in shutdown."
      },
      {
        "number": "2",
        "name": "FULL",
        "type": "output",
        "description": "Open-drain charge status output that is pulled low by an internal N-channel MOSFET when charging is complete (VFULL is 0.5V maximum at IFULL = 5mA)."
      },
      {
        "number": "3",
        "name": "NTC",
        "type": "input",
        "description": "Negative temperature coefficient thermistor input that senses battery pack temperature and stops the charger when the temperature is out of range; connect to GND to disable this function."
      },
      {
        "number": "4",
        "name": "VBAT",
        "type": "power_out",
        "description": "Battery pin, regulated to the 4.2V float voltage (VFLOAT 4.158V to 4.242V)."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Current sense pin; the charge current is set as IBAT = 50mV / RCS using the external sense resistor RCS."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "Switch pin that connects to the external inductor; switch rise and fall times are kept under 5ns per the layout guidance."
      },
      {
        "number": "7",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog (signal) ground."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive supply voltage input, specified 4.5V to 5.5V, to be decoupled with a 10µF or larger surface mounted ceramic capacitor."
      },
      {
        "number": "9",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground on the exposed pad, which must be connected to the ground plane for proper power 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 prints this pin as '9(PAD)' (exposed thermal pad) in the ESOP8 column; it is recorded ; The ESOP8 pin-description table gives pin numbers and names, but the ESOP-8 top-view diagram text is"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0434,
        "at": "2026-10-18T20:08:52"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912947930812417",
        "pages": 8,
        "sha256": "f160b4d8c7d33918",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lp28303aspf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp28303aspf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a2c0c35441067bc11d2a373a4d4fd884855800937c722f52a3a249cc5a3bc723",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}