AXP2101

{
  "schema_version": 1,
  "type": "component",
  "slug": "axp2101",
  "title": "AXP2101",
  "brief": "X Powers Tech Power Management - Specialized, QFN-40-EP(5x5). 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)",
    "axp2101",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AXP2101",
    "manufacturer": "X Powers Tech",
    "package": "QFN-40-EP(5x5)",
    "pin_count": 41,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Management - Specialized",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589785014201319424",
    "parts": {
      "symbol": "axp2101.kicad_sym",
      "footprint": "axp2101.kicad_mod",
      "model_3d": "axp2101-hero.glb",
      "model_3d_plain": "axp2101-etched.glb",
      "model_3d_step": "axp2101-etched.step",
      "model_3d_step_plain": "axp2101.step",
      "lbr": "axp2101.lbr"
    },
    "distributor_links": {
      "lcsc": "C3036461"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T04:48:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHGLED",
        "type": "output",
        "description": "Charge status output indicating various charger operating states."
      },
      {
        "number": "2",
        "name": "VREF",
        "type": "power_in",
        "description": "Internal reference voltage pin; 1uF/6.3V capacitor shown in the typical application."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground for interrupt analog and digital circuits."
      },
      {
        "number": "4",
        "name": "FB3",
        "type": "passive",
        "description": "DCDC3 feedback pin."
      },
      {
        "number": "5",
        "name": "LX3",
        "type": "passive",
        "description": "Inductor pin for DCDC3."
      },
      {
        "number": "6",
        "name": "VIN3",
        "type": "power_in",
        "description": "DCDC3 input source."
      },
      {
        "number": "7",
        "name": "VIN4",
        "type": "power_in",
        "description": "DCDC4 input source."
      },
      {
        "number": "8",
        "name": "LX4",
        "type": "passive",
        "description": "Inductor pin for DCDC4."
      },
      {
        "number": "9",
        "name": "FB4",
        "type": "passive",
        "description": "DCDC4 feedback pin and switch input source."
      },
      {
        "number": "10",
        "name": "CPUSLDO",
        "type": "power_out",
        "description": "Output pin of CPUSLDO (0.5~1.4V, up to 30mA per features list)."
      },
      {
        "number": "11",
        "name": "DLDO2/DC4SW",
        "type": "power_out",
        "description": "Output pin of DLDO2, configurable as the output pin of DC4SW."
      },
      {
        "number": "12",
        "name": "BLDO1",
        "type": "power_out",
        "description": "Output pin of BLDO1."
      },
      {
        "number": "13",
        "name": "BLDOIN",
        "type": "power_in",
        "description": "BLDO input source."
      },
      {
        "number": "14",
        "name": "BLDO2",
        "type": "power_out",
        "description": "Output pin of BLDO2."
      },
      {
        "number": "15",
        "name": "ALDO4",
        "type": "power_out",
        "description": "Output pin of ALDO4."
      },
      {
        "number": "16",
        "name": "ALDO3",
        "type": "power_out",
        "description": "Output pin of ALDO3."
      },
      {
        "number": "17",
        "name": "ALDOIN",
        "type": "power_in",
        "description": "ALDO input source."
      },
      {
        "number": "18",
        "name": "ALDO1",
        "type": "power_out",
        "description": "Output pin of ALDO1."
      },
      {
        "number": "19",
        "name": "ALDO2",
        "type": "power_out",
        "description": "Output pin of ALDO2."
      },
      {
        "number": "20",
        "name": "DLDO1/DC1SW",
        "type": "power_out",
        "description": "Output pin of DLDO1, configurable as the output pin of DC1SW."
      },
      {
        "number": "21",
        "name": "FB1",
        "type": "passive",
        "description": "DCDC1 feedback pin."
      },
      {
        "number": "22",
        "name": "LX1",
        "type": "passive",
        "description": "Inductor pin for DCDC1."
      },
      {
        "number": "23",
        "name": "VIN1",
        "type": "power_in",
        "description": "DCDC1 input source."
      },
      {
        "number": "24",
        "name": "VIN2",
        "type": "power_in",
        "description": "DCDC2 input source."
      },
      {
        "number": "25",
        "name": "LX2",
        "type": "passive",
        "description": "Inductor pin for DCDC2."
      },
      {
        "number": "26",
        "name": "FB2",
        "type": "input",
        "description": "DCDC2 feedback pin."
      },
      {
        "number": "27",
        "name": "VBACKUP",
        "type": "power_in",
        "description": "Input pin of the backup battery."
      },
      {
        "number": "28",
        "name": "VRTC",
        "type": "power_out",
        "description": "RTC power output."
      },
      {
        "number": "29",
        "name": "PWROK",
        "type": "bidirectional",
        "description": "Power good indication output."
      },
      {
        "number": "30",
        "name": "PWRON",
        "type": "bidirectional",
        "description": "Power on-off key input with internal 100k pull-up to VINT."
      },
      {
        "number": "31",
        "name": "TS",
        "type": "input",
        "description": "Battery temperature qualification input for an NTC thermistor to GND; a current source is injected and charging suspends when TS is out of range; can also be an external input signal."
      },
      {
        "number": "32",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "GPIO1 output pin, configurable to RTCLDO or FB5 of DCDC5."
      },
      {
        "number": "33",
        "name": "BAT",
        "type": "passive",
        "description": "Battery connection point with the internal BATFET between BAT and SYS; connect a 1uF capacitor close to the pin."
      },
      {
        "number": "34",
        "name": "VSYS",
        "type": "passive",
        "description": "System connection point with the internal BATFET between BAT and SYS; keeps SYS above minimum system voltage; connect two 22uF capacitors close to the pin."
      },
      {
        "number": "35",
        "name": "SW",
        "type": "passive",
        "description": "Inductor pin for the buck converter."
      },
      {
        "number": "36",
        "name": "VMID",
        "type": "power_out",
        "description": "VMID power output."
      },
      {
        "number": "37",
        "name": "VBUS",
        "type": "power_in",
        "description": "VBUS input."
      },
      {
        "number": "38",
        "name": "IRQ",
        "type": "output",
        "description": "Open-drain interrupt output reporting charger status and faults; connect to a logic rail via a 4.7kΩ resistor."
      },
      {
        "number": "39",
        "name": "SCK",
        "type": "input",
        "description": "Serial interface pin (SCK) needing a 2.2kΩ pull-up; table text calls it the data pin."
      },
      {
        "number": "40",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial interface pin (SDA) needing a 2.2kΩ pull-up; table text calls it the clock pin."
      },
      {
        "number": "41",
        "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-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 drawing (Figure 10-1), marking (Figure 10-2) and tray drawing are marked '待提供' (to be provid; Pin name in the pin table is 'CPULDOS' but the features and block text call it 'CPUSLDO'. Pinout use; Pin descriptions appear swapped: pin 39 is named SCK but described as the 'Data pin', and pin 40 is ",
          "exposed pad 41 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 14,
        "cost_usd": 0.1087,
        "at": "2026-10-19T04:45:51"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589785014201319424",
        "pages": 52,
        "sha256": "0745cc5e6c21d935",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8f37bc7a9aab4742c34f137d9822c0352acc227532830034555744338483cdfc",
        "checked": "2026-10-19",
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        "sha256": "2bd3aecad6cd53f846418d51465a942b2509768ba2fbd52b567d7bb4ad833a03",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "X Powers Tech",
      "Package": "QFN-40-EP(5x5)",
      "Category": "Power Management (PMIC)",
      "Pins": "41"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0745cc5e6c21d935c8441264d8996520df0b2114dac96ba2203cac0b57781725",
      "rows": [
        {
          "name": "VBUS voltage range (with respect to GND)",
          "symbol": "VBUS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 12,
          "conditions": "with respect to GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Other pins voltage (excluding VBUS, PGND, GND)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PGND to GND voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
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        {
          "name": "Operating free-air temperature range",
          "symbol": "Ta",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Ts",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum soldering temperature (at leads)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "at leads, 10 sec",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (VBUS)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.9,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input current (VBUS)",
          "symbol": "IIN",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "ISYS",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Battery voltage",
          "symbol": "VBAT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.4,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Charging current",
          "symbol": "IBAT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "JEDEC JESD51 calculation",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "θJB",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 10.8,
          "max": null,
          "conditions": "JEDEC JESD51 calculation",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 22.8,
          "max": null,
          "conditions": "JEDEC JESD51 calculation",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Target charge voltage accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "testing ambient temperature 25℃, target voltage 4.2V",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Target charge voltage setting range (VREG)",
          "symbol": "VREG",
          "kind": "electrical",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 4.6,
          "conditions": "settable via reg64[2:0]; steps 4.0/4.1/4.2/4.35/4.4/4.6 V",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Fast charge current setting range (ICHG)",
          "symbol": "ICHG",
          "kind": "electrical",
          "unit": "mA",
          "min": 0,
          "typ": null,
          "max": 1000,
          "conditions": "settable via reg62[4:0]",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Pre-charge current setting range (IPRE-CHG)",
          "symbol": "IPRE-CHG",
          "kind": "electrical",
          "unit": "mA",
          "min": 0,
          "typ": null,
          "max": 200,
          "conditions": "settable via reg61[3:0]",
          "source_page": 14,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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