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Ray Set visibility: public 6c71c9a 8d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "md85a36pa1",
  "title": "MD85A36PA1",
  "brief": "Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "md85a36pa1",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "MD85A36PA1",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "SOT-89-3L",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917798341398528",
    "parts": {
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    "distributor_check": {
      "checked_at": "2026-10-18T09:41:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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        "status": "quota"
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    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the datasheet specifies it as the ground reference for the regulator."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input pin; the input voltage range is 2.2V to 40V, with an absolute maximum of 45V (-0.3V to 45V)."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage pin; VOUT must not exceed VIN+0.3V, otherwise reverse current through the parasitic diodes can destroy the IC."
      }
    ],
    "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: MD85A36PA1 is listed under SOT89-3L in the product selection table (page 3), with marking 8536A. The; SOT89-3L has no EN pin in the datasheet pin table; EN appears only on the SOT23-5 and ESOP8 pinouts,; Page 3 ordering table lists MD85F0A (15.0V, SOT89-3L) with ordering code MD85EF0PA1, which is the sa"
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        "cost_usd": 0.0378,
        "at": "2026-10-18T09:39:49"
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        "pages": 13,
        "sha256": "b57d90f008c009b2",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "md85a36pa1-etched.step",
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        "sha256": "14d7d48f9c3dd4aad4546bc865be4978a4ccb78f9f1268e1b677926084224c94",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Mingda Microelectronics",
      "Package": "SOT-89-3L",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b57d90f008c009b204a9a32af9862abf47b7b1047c0a83f1e4a42d6ba5402f91",
      "rows": [
        {
          "name": "Output voltage accuracy (printed tolerance)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Temperature stability",
          "symbol": "ΔVOUT/(VOUT·ΔT)",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VIN = VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤125℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage (IOUT=1mA)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 4,
          "max": 8,
          "conditions": "VEN=VIN, VOUT(S)=3.3V, IOUT=1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage (IOUT=300mA)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 1200,
          "max": 1800,
          "conditions": "VEN=VIN, VOUT(S)=3.3V, IOUT=300mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT/(VOUT·ΔVIN)",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.02,
          "conditions": "VOUT(S)+2V≤VIN≤40V, IOUT=1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load regulation (VOUT(S)≤5.3V row, applies to 3.6V)",
          "symbol": "VOUT2",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 40,
          "conditions": "VIN = VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤5.3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "GND current, no load (3.0≤VOUT(S)≤5.3V row, applies to 3.6V)",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "uA",
          "min": 1,
          "typ": 1.5,
          "max": 2.5,
          "conditions": "no load, VEN=VIN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ISHUT",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VIN=40.0V, VEN=0",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IOUTMAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 300,
          "max": 350,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 350,
          "max": 550,
          "conditions": "VIN= VOUT(S)+2V, VOUT = 0.95×VOUT(S)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Short circuit current",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "VIN=VEN=VOUT(S)+2.0V, VOUT=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN high-level voltage",
          "symbol": "VENH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN low-level voltage",
          "symbol": "VENL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN high-level current",
          "symbol": "IENH",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN=40V, VEN=VIN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN low-level current",
          "symbol": "IENL",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN=40V, VEN=0",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 45,
          "conditions": "Ta=25℃ unless otherwise indicated",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation, SOT89-3",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "Ta=25℃ unless otherwise indicated",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-board, SOT89-3",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "Mounted on JEDEC standard 4layer (2s2p) PCB test board",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Topr",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "MD85A36PA1 (Shanghai Mingda Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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