LP28303ASPF

{
  "schema_version": 1,
  "type": "component",
  "slug": "lp28303aspf",
  "title": "LP28303ASPF",
  "brief": "LOWPOWER Battery Management, ESOP-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 (pmic)",
    "lp28303aspf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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": {
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      "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"
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      "datasheet": {
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        "pages": 8,
        "sha256": "f160b4d8c7d33918",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "LOWPOWER",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f160b4d8c7d33918760d135bc754ca8b77b343021574850ddc8f7bd7cba94517",
      "rows": [
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          "name": "VIN pin to GND",
          "symbol": "",
          "kind": "absolute_maximum",
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          "max": 7,
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        {
          "name": "Maximum Junction Temperature",
          "symbol": "",
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          "unit": "℃",
          "min": null,
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        {
          "name": "Operating Ambient Temperature Range (TA)",
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        },
        {
          "name": "Maximum Soldering Temperature",
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          "unit": "℃",
          "min": null,
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        {
          "name": "Maximum Power Dissipation (ESOP8)",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
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          "max": 2,
          "conditions": "TA=25℃",
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        {
          "name": "VIN Adapter/USB Voltage Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
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        },
        {
          "name": "Regulated Output (Float) Voltage",
          "symbol": "VFLOAT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.158,
          "typ": 4.2,
          "max": 4.242,
          "conditions": "",
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        },
        {
          "name": "Input Supply Current, Standby Mode (Charge Terminated)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "Standby Mode (Charge Terminated)",
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        {
          "name": "Current Sense Reference Voltage (For CS to BAT)",
          "symbol": "VCS",
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          "typ": 50,
          "max": null,
          "conditions": "VTRIKL<VBAT<VFLOAT",
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        {
          "name": "BAT Pin Current",
          "symbol": "IBAT",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 1000,
          "max": null,
          "conditions": "Rcs=50mΩ, Current Mode",
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        {
          "name": "BAT Pin Current",
          "symbol": "IBAT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2000,
          "max": null,
          "conditions": "Rcs=25mΩ, Current Mode",
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        {
          "name": "BAT Pin Current, Standby Mode",
          "symbol": "IBAT",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 7,
          "max": null,
          "conditions": "Standby Mode",
          "source_page": 4,
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        },
        {
          "name": "Trickle Charge Current",
          "symbol": "ITRIKL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "1V<VBAT<VTRIKL, RCS=50mΩ",
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        {
          "name": "Trickle Charge Current",
          "symbol": "ITRIKL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "VBAT<1V, RCS=50mΩ",
          "source_page": 4,
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        {
          "name": "Trickle Charge Threshold Voltage",
          "symbol": "VTRIKL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.8,
          "max": null,
          "conditions": "RCS=50mΩ, VBAT Rising",
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        {
          "name": "Trickle Charge Hysteresis Voltage",
          "symbol": "VTRHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "RCS=50mΩ",
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        {
          "name": "Input Regulation Voltage",
          "symbol": "VREG",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.3,
          "max": null,
          "conditions": "",
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        {
          "name": "CHRG Pin Output Low Voltage",
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          "kind": "electrical",
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          "max": null,
          "conditions": "IFULL=5mA",
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        {
          "name": "Recharge Threshold Voltage",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "VFLOAT-VRECHRG",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature in Constant Temperature Mode",
          "symbol": "TLIM",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "C/10 Terminal Current",
          "symbol": "ITERM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "RCS=50mΩ",
          "source_page": 4,
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        {
          "name": "Under Voltage Lockout of VIN, rising",
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        {
          "name": "Under Voltage Lockout of VIN, falling",
          "symbol": "UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.9,
          "max": null,
          "conditions": "VIN falling",
          "source_page": 4,
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        {
          "name": "Over Voltage Protection of VIN, rising",
          "symbol": "VOVP",
          "kind": "electrical",
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          "typ": 6,
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          "name": "Over Voltage Protection of VIN, falling",
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        },
        {
          "name": "Switch Frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "VIN=5V, Current Mode",
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        {
          "name": "Protection Threshold Voltage of VNTC, rising",
          "symbol": "VNTC",
          "kind": "electrical",
          "unit": "%VIN",
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        },
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          "name": "Thermal Resistance (ESOP8)",
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          "kind": "thermal",
          "unit": "℃/W",
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