MD7671F40PC1

{
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  "type": "component",
  "slug": "md7671f40pc1",
  "title": "MD7671F40PC1",
  "brief": "Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-5. 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)",
    "md7671f40pc1",
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  "component": {
    "mpn": "MD7671F40PC1",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "SOT-89-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603034824936333312",
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      "lbr": "md7671f40pc1.lbr"
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    "distributor_links": {
      "lcsc": "C2978484"
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    "distributor_check": {
      "checked_at": "2026-10-19T06:59:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: minimum 1.6V enables the device and maximum 0.4V shuts it down, with the output discharged to GND during shutdown."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; the package drawing also labels the top tab as pin 2, which should be connected to a large ground plane for thermal conductivity."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "Non-connection pin, which can be connected to GND or left open."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input pin (2V to 6V operating range), to be closely decoupled to GND with a 4.7µF or greater ceramic capacitor."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulator output pin (4.0V fixed for this variant, up to 1A), requiring a 4.7µF or larger ceramic output capacitor close to the pin."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The SOT89-5 pin table is not in the pin description (it covers only ESOP8 and SOT23-5), so the pin f",
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        "cost_usd": 0.3098,
        "at": "2026-10-19T06:58:56"
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        "sha256": "f2697204b1696c96",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Mingda Microelectronics",
      "Package": "SOT-89-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
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    "characteristics": {
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          "kind": "absolute_maximum",
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          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "Unless otherwise indicated: Ta=25℃",
          "source_page": 3,
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        {
          "name": "Output Voltage (absolute maximum)",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
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        {
          "name": "ESD Protection HBM",
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          "name": "Output Voltage Tolerance",
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        {
          "name": "Line Regulation",
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          "kind": "electrical",
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          "name": "Load Regulation",
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          "kind": "electrical",
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          "name": "Temperature Stability",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -50,
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          "conditions": "VIN=VEN=VOUT(S)+1.0V, IOUT=1mA, -40℃≤TA≤125℃",
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        {
          "name": "Reference Voltage Tolerance",
          "symbol": "",
          "kind": "tolerance",
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          "max": 0.714,
          "conditions": "",
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        },
        {
          "name": "Enable Turn-On Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
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          "conditions": "Output ON",
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          "name": "Enable Turn-Off Threshold",
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        {
          "name": "Shutdown Pin Current",
          "symbol": "",
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        {
          "name": "Ground Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VEN=VIN, no load",
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        {
          "name": "Ground Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 390,
          "max": null,
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          "name": "Shutdown Current",
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          "kind": "electrical",
          "unit": "μA",
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        {
          "name": "Continuous Output Current",
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          "kind": "electrical",
          "unit": "A",
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          "conditions": "VIN>2.1V",
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          "name": "Output Current Limit",
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        {
          "name": "Current Fold Back",
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        {
          "name": "Shutdown Exit Delay Time",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0,
          "max": null,
          "conditions": "",
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        {
          "name": "Max Output Discharge Resistance to GND during Shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 30,
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        },
        {
          "name": "PGOOD Rise Threshold",
          "symbol": "PGHTH",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "PGOOD Hysteresis",
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          "kind": "electrical",
          "unit": "%",
          "min": null,
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          "max": null,
          "conditions": "",
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          "name": "PGOOD Delay",
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          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "PGOOD Sink Capability",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.05,
          "max": null,
          "conditions": "IPGOOD = 10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Ripple Rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "f=1kHz, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Ripple Rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 68,
          "max": null,
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        {
          "name": "Power Supply Ripple Rejection",
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          "min": null,
          "typ": 47,
          "max": null,
          "conditions": "f=100kHz, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Power Supply Ripple Rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "f=1MHz, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "VOUTN",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 115,
          "max": null,
          "conditions": "CBP = 1µF, VOUT=3.3V, f=10Hz ~100KHz",
          "source_page": 4,
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        {
          "name": "Thermal Shutdown Temperature",
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          "min": null,
          "typ": 175,
          "max": null,
          "conditions": "",
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          "name": "Thermal Shutdown Hysteresis",
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          "unit": "℃",
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          "typ": 35,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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      ]
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  "discovery_pitch": "MD7671F40PC1 (Shanghai Mingda Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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