NST03AA

{
  "schema_version": 1,
  "type": "component",
  "slug": "nst03aa",
  "title": "NST03AA",
  "brief": "WXNSIC Battery Management, SOP-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)",
    "nst03aa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "NST03AA",
    "manufacturer": "WXNSIC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/da562c569b63cd54258ffcf37f6131c4.pdf",
    "parts": {
      "symbol": "nst03aa.kicad_sym",
      "footprint": "nst03aa.kicad_mod",
      "model_3d": "nst03aa-hero.glb",
      "model_3d_plain": "nst03aa-etched.glb",
      "model_3d_step": "nst03aa-etched.step",
      "model_3d_step_plain": "nst03aa.step",
      "lbr": "nst03aa.lbr"
    },
    "distributor_links": {
      "lcsc": "C53463334"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T00:03:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LX",
        "type": "output",
        "description": "Boost converter switching output node (升压开关输出); the datasheet gives no voltage or current limit for this pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; all voltage ratings in the datasheet are referenced to VSS."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery positive input; preset charge voltage is 4.2 V (NST03AA) or 4.35 V (NST03AAH), BAT overvoltage protection is 5.1 V, and the output shuts off when BAT falls to 2.8 V."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "5 V adapter input with a 4.5 V to 5.5 V operating range (typ. 5 V) and overvoltage protection at 6.2 V (recovers at 5.8 V); absolute maximum is 6 V."
      },
      {
        "number": "5",
        "name": "L1",
        "type": "output",
        "description": "Discharge-status LED driver: stays on once boost starts, and flashes at 2 Hz as a low-battery warning when BAT drops below 3.1 V."
      },
      {
        "number": "6",
        "name": "L2",
        "type": "output",
        "description": "Charge-status LED driver: flashes at 1 Hz while charging and stays on solid when the battery is full (4.2 V)."
      },
      {
        "number": "7",
        "name": "KEY",
        "type": "input",
        "description": "Push-button pin for single-click power on/off, with an internal pull-up current of 40 uA at BAT = 3.7 V."
      },
      {
        "number": "8",
        "name": "OUT",
        "type": "power_out",
        "description": "Boost 5 V output, rated 4.8 V to 5.2 V at 0.3 A load, with short-circuit protection (output-short delay 420 uS, trip voltage 3.0 V) and heavy-load protection (4.2 V, 8 ms delay)."
      }
    ],
    "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's pin table (section 7, page 4) covers the SOP8 package, which matches the MPN's packa; Type classification is inferred because the datasheet gives only functional descriptions: LX and L1/; Variant note: NST03AA (4.2 V preset) and NST03AAH (4.35 V preset) share the same SOP8 pinout. The MP"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0394,
        "at": "2026-10-19T00:01:31"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/da562c569b63cd54258ffcf37f6131c4.pdf",
        "pages": 9,
        "sha256": "6c7af41007607789",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "nst03aa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "nst03aa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.75
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "557d83af988e8b4c5f5f2702a1e21184dbc1bb6ab053f7b7d279c516ef421173",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WXNSIC",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6c7af41007607789a1f1325e38aa17d43088d6d231f5e4ba2c165131dc086791",
      "rows": [
        {
          "name": "VCC supply voltage",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Boost operating frequency",
          "symbol": "FOP",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.8,
          "typ": 1,
          "max": 1.2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Boost output voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.8,
          "typ": 5,
          "max": 5.2,
          "conditions": "ILOAD=0.3A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VCC voltage (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Other pins voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage ambient temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD rating",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "nst03aa"
  ],
  "discovery_pitch": "NST03AA (WXNSIC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  "visibility": {
    "public": true
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}