AXP203

{
  "slug": "axp203",
  "version": "0.1.0",
  "type": "component",
  "description": "Allwinner Tech Battery Management, VQFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "axp203",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "axp203.kicad_sym",
    "axp203.kicad_mod",
    "axp203.glb",
    "axp203.step",
    "axp203.lbr",
    "docs/hero.png",
    "docs/axp203-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "axp203-hero.glb",
    "axp203-hero.overlay.json",
    "axp203-etched.glb"
  ],
  "component": {
    "mpn": "AXP203",
    "manufacturer": "Allwinner Tech",
    "package": "VQFN-48-EP(6x6)",
    "pin_count": 49,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8609176206692392960",
    "parts": {
      "symbol": "axp203.kicad_sym",
      "footprint": "axp203.kicad_mod",
      "model_3d": "axp203-hero.glb",
      "model_3d_plain": "axp203-etched.glb",
      "model_3d_step": "axp203-etched.step",
      "model_3d_step_plain": "axp203.step",
      "lbr": "axp203.lbr"
    },
    "distributor_links": {
      "lcsc": "C3036457"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T17:24:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Data pin for the serial (TWSI) interface, normally connected through a 2.2K resistor to 3.3V I/O power."
      },
      {
        "number": "2",
        "name": "SCK",
        "type": "input",
        "description": "Clock pin for the serial (TWSI) interface, normally connected through a 2.2K resistor to 3.3V I/O power."
      },
      {
        "number": "3",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General-purpose I/O 3, configured through register REG9EH[7] as printed in the pin table."
      },
      {
        "number": "4",
        "name": "N_OE",
        "type": "input",
        "description": "Power output on/off switch: connected to GND turns the outputs on, connected to IPSOUT turns them off."
      },
      {
        "number": "5",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose I/O 2."
      },
      {
        "number": "6",
        "name": "N_VBUSEN",
        "type": "input",
        "description": "Selects VBUS-to-IPSOUT path: GND selects IPSOUT from VBUS, high level means VBUS is not selected."
      },
      {
        "number": "7",
        "name": "VIN2",
        "type": "power_in",
        "description": "Input source for DCDC2."
      },
      {
        "number": "8",
        "name": "LX2",
        "type": "bidirectional",
        "description": "Inductor pin for DCDC2."
      },
      {
        "number": "9",
        "name": "PGND2",
        "type": "power_in",
        "description": "NMOS ground for DCDC2."
      },
      {
        "number": "10",
        "name": "DCDC2",
        "type": "input",
        "description": "DC-DC2 feedback pin."
      },
      {
        "number": "11",
        "name": "LDO4",
        "type": "output",
        "description": "Output pin of LDO4."
      },
      {
        "number": "12",
        "name": "LDO2",
        "type": "output",
        "description": "Output pin of LDO2."
      },
      {
        "number": "13",
        "name": "LDO24IN",
        "type": "power_in",
        "description": "Input to LDO2 and LDO4."
      },
      {
        "number": "14",
        "name": "VIN3",
        "type": "power_in",
        "description": "Input source for DCDC3."
      },
      {
        "number": "15",
        "name": "LX3",
        "type": "bidirectional",
        "description": "Inductor pin for DCDC3."
      },
      {
        "number": "16",
        "name": "PGND3",
        "type": "power_in",
        "description": "NMOS ground for DCDC3."
      },
      {
        "number": "17",
        "name": "DCDC3",
        "type": "input",
        "description": "Feedback pin for DCDC3."
      },
      {
        "number": "18",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose I/O 1, which can also be used as an ADC input."
      },
      {
        "number": "19",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose I/O 0, which can also be used as a low-noise LDO/switch output or ADC input."
      },
      {
        "number": "20",
        "name": "EXTEN",
        "type": "output",
        "description": "External power enable output."
      },
      {
        "number": "21",
        "name": "APS",
        "type": "power_in",
        "description": "Internal power input."
      },
      {
        "number": "22",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "23",
        "name": "BIAS",
        "type": "bidirectional",
        "description": "Connects to an external 200 kOhm 1% resistor."
      },
      {
        "number": "24",
        "name": "VREF",
        "type": "power_in",
        "description": "Internal reference voltage output."
      },
      {
        "number": "25",
        "name": "PWROK",
        "type": "output",
        "description": "Power good indication output."
      },
      {
        "number": "26",
        "name": "VINT",
        "type": "power_out",
        "description": "Internal logic power, 2.5V."
      },
      {
        "number": "27",
        "name": "LDO1SET",
        "type": "input",
        "description": "Sets the default voltage of LDO1 (GND gives 1.3V, VINT gives 3.3V per the default-voltage table)."
      },
      {
        "number": "28",
        "name": "LDO1",
        "type": "output",
        "description": "LDO1 output, for the host RTC block."
      },
      {
        "number": "29",
        "name": "DC3SET",
        "type": "input",
        "description": "Sets the default voltage of DCDC3 (GND gives 1.8V, APS gives 3.3V/2.5V, floating gives 1.2V/1.5V per the default-voltage table)."
      },
      {
        "number": "30",
        "name": "BACKUP",
        "type": "bidirectional",
        "description": "Backup battery pin for the RTC backup battery."
      },
      {
        "number": "31",
        "name": "VBUS",
        "type": "power_in",
        "description": "USB VBUS input."
      },
      {
        "number": "32",
        "name": "ACIN",
        "type": "power_in",
        "description": "Adapter input (pin 32 of the ACIN pair)."
      },
      {
        "number": "33",
        "name": "ACIN",
        "type": "power_in",
        "description": "Adapter input (pin 33 of the ACIN pair)."
      },
      {
        "number": "34",
        "name": "IPSOUT",
        "type": "bidirectional",
        "description": "Main battery connection (pin 34 of the IPSOUT pair)."
      },
      {
        "number": "35",
        "name": "IPSOUT",
        "type": "bidirectional",
        "description": "Main battery connection (pin 35 of the IPSOUT pair)."
      },
      {
        "number": "36",
        "name": "CHGLED",
        "type": "output",
        "description": "Charger status indication output."
      },
      {
        "number": "37",
        "name": "TS",
        "type": "input",
        "description": "Battery temperature sensor input or an external ADC input."
      },
      {
        "number": "38",
        "name": "BAT",
        "type": "power_out",
        "description": "System power source (pin 38 of the BAT pair)."
      },
      {
        "number": "39",
        "name": "BAT",
        "type": "power_out",
        "description": "System power source (pin 39 of the BAT pair)."
      },
      {
        "number": "40",
        "name": "LDO3IN",
        "type": "power_in",
        "description": "Input source for LDO3."
      },
      {
        "number": "41",
        "name": "LDO3",
        "type": "output",
        "description": "Output pin of LDO3."
      },
      {
        "number": "42",
        "name": "BATSENSE",
        "type": "input",
        "description": "Current sense port 1."
      },
      {
        "number": "43",
        "name": "CHSENSE",
        "type": "output",
        "description": "Current sense port 2."
      },
      {
        "number": "44",
        "name": "VIN1",
        "type": "power_in",
        "description": "Input source for DCDC1."
      },
      {
        "number": "45",
        "name": "LX1",
        "type": "bidirectional",
        "description": "Inductor pin for DCDC1."
      },
      {
        "number": "46",
        "name": "PGND1",
        "type": "power_in",
        "description": "NMOS ground for DCDC1."
      },
      {
        "number": "47",
        "name": "PWRON",
        "type": "input",
        "description": "Power on/off key input, with an internal 100k pull-up to APS."
      },
      {
        "number": "48",
        "name": "IRQ/WAKEUP",
        "type": "bidirectional",
        "description": "IRQ output or wakeup input."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed pad, which must be connected to system ground."
      }
    ],
    "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: Package naming: the datasheet calls the device a '6mm x 6mm 48-pin QFN package' with an exposed pad ; Pin 40 (LDO3IN) is typed 'O' in the pin table but described as an input source. I mapped it to power; Pin 41 (LDO3) is typed 'I' in the pin table but described as an output pin. I mapped it to output ba"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1091,
        "at": "2026-10-18T17:23:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8609176206692392960",
        "pages": 55,
        "sha256": "68b3d0fd08268a5f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "axp203.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.02,
          6.02,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9c368a5ccc2fb3ef30de4045c851508aeed6fe62b03f33115769e916f1e1e4bd",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "axp203-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.02,
          6.02,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e2a84dfe81630330427f4dd9c2d59a45fa8e80631119265244369e09ea0fd1be",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}