MIC2128YML-TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "mic2128yml-tr",
  "title": "MIC2128YML-TR",
  "brief": "Microchip Tech DC-DC Converters, VQFN-16-EP(3x3). 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 supply chip",
    "mic2128yml-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MIC2128YML-TR",
    "manufacturer": "Microchip Tech",
    "package": "VQFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/bd47db402ffdcf5c8d6c69746f867fac.pdf",
    "parts": {
      "symbol": "mic2128yml-tr.kicad_sym",
      "footprint": "mic2128yml-tr.kicad_mod",
      "model_3d": "mic2128yml-tr-hero.glb",
      "model_3d_plain": "mic2128yml-tr-etched.glb",
      "model_3d_step": "mic2128yml-tr-etched.step",
      "model_3d_step_plain": "mic2128yml-tr.step",
      "lbr": "mic2128yml-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C621532",
      "digikey": "MIC2128YML-TR-ND",
      "mouser": "579-MIC2128YML-TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T09:20:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MIC2128YML-TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "579-MIC2128YML-TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PG",
        "type": "output",
        "description": "Open-drain Power Good output; connect to VDD through a pull-up resistor, and it is low when FB is 10% below the 0.6V reference."
      },
      {
        "number": "2",
        "name": "ILIM",
        "type": "passive",
        "description": "Current limit setting pin; connect a resistor from ILIM to SW to set the current limit (rated 0V to VIN operating, -0.3V to +76V absolute max)."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "bidirectional",
        "description": "Switch node connecting the high-side MOSFET source and low-side MOSFET drain, returns the high-side gate driver and senses low-side current for negative current limit."
      },
      {
        "number": "4",
        "name": "BST",
        "type": "passive",
        "description": "Bootstrap capacitor pin supplying the high-side N-MOSFET driver; connect a minimum 0.1 µF low ESR ceramic capacitor between BST and SW."
      },
      {
        "number": "5",
        "name": "DH",
        "type": "output",
        "description": "High-side N-MOSFET gate driver output; connect to the gate of the external high-side N-MOSFET."
      },
      {
        "number": "6",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground, return for the low-side gate driver and reference for the current limit comparator; connect to the low-side MOSFET source and PVDD bypass capacitor return."
      },
      {
        "number": "7",
        "name": "DL",
        "type": "output",
        "description": "Low-side N-MOSFET gate driver output; connect to the gate of the external low-side N-MOSFET."
      },
      {
        "number": "8",
        "name": "PVDD",
        "type": "power_out",
        "description": "Internal high voltage LDO output supplying the low-side and floating high-side MOSFET drivers; connect a minimum 4.7 µF low ESR ceramic capacitor to PGND."
      },
      {
        "number": "9",
        "name": "EXTVDD",
        "type": "power_in",
        "description": "Supply to the internal low voltage LDO; connect to the buck output if between 4.7V and 14V (operating 0V to 13.2V) and bypass with a minimum 1 µF ceramic capacitor."
      },
      {
        "number": "10",
        "name": "EN",
        "type": "input",
        "description": "Enable logic input; logic high enables the converter and logic low disables it (0V to VIN operating)."
      },
      {
        "number": "11",
        "name": "FREQ",
        "type": "input",
        "description": "Switching frequency programming input; connect to the midpoint of a resistor divider between VIN and AGND, or tie to VIN for 800 kHz."
      },
      {
        "number": "12",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start time setting pin; connect a ceramic capacitor from SS to AGND to set the output soft-start time."
      },
      {
        "number": "13",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the transconductance amplifier, regulated to 0.6V; connect to the midpoint of the resistor divider between output and AGND."
      },
      {
        "number": "14",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference for the internal analog control circuits; connect to PGND at one point on the PCB."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply for the internal analog circuits; connect to PVDD through a low pass filter with a minimum 4.7 µF low ESR ceramic capacitor to AGND."
      },
      {
        "number": "16",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input to the internal high voltage LDO, 4.5V to 75V; bypass to PGND with a minimum 0.1 µF low ESR ceramic capacitor."
      },
      {
        "number": "17",
        "name": "EP",
        "type": "passive",
        "description": "Exposed thermal pad; connect to the AGND copper plane to improve thermal performance."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types are inferred from the functions described; the datasheet does not state ERC types. The tex"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0892,
        "at": "2026-10-23T09:19:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/bd47db402ffdcf5c8d6c69746f867fac.pdf",
        "pages": 36,
        "sha256": "8d4e2fa21b3a8141",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mic2128yml-tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          3,
          0.785
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mic2128yml-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          3,
          0.785
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "02b4fe92376f88852dc29111ebcb5251dd3249d2e26604c43ac1c46804f21ecf",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "VQFN-16-EP(3x3)",
      "Category": "Power Supply Chip",
      "Pins": "17"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8d4e2fa21b3a81414297887a734cfaf8cea8f499efefd1243ef41249be8b212f",
      "rows": [
        {
          "name": "Input Voltage Range",
          "symbol": "VVIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "PVDD and VDD shorted to VIN (VPVDD = VVIN = VVDD)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage Range",
          "symbol": "VVIN",
          "kind": "electrical",
          "unit": "V",
          "min": 5.5,
          "typ": null,
          "max": 75,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.4,
          "max": 1.8,
          "conditions": "VFB = 1.5V, no switching",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "IVIN(SHDN)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 5,
          "conditions": "EN = Low",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "IVIN(SHDN)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 30,
          "max": 60,
          "conditions": "EN = Low, VIN = VDD = 5.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PVDD Output Voltage",
          "symbol": "VPVDD",
          "kind": "electrical",
          "unit": "V",
          "min": 4.8,
          "typ": 5.1,
          "max": 5.4,
          "conditions": "VVIN = 7V to 75V, IPVDD = 10 mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD UVLO Threshold",
          "symbol": "VVDD_UVLO_Rise",
          "kind": "electrical",
          "unit": "V",
          "min": 3.7,
          "typ": 4.2,
          "max": 4.5,
          "conditions": "VDD rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EXTVDD Bypass Threshold",
          "symbol": "VEXTVDD_Rise",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.6,
          "max": 4.85,
          "conditions": "EXTVDD rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.597,
          "typ": 0.6,
          "max": 0.603,
          "conditions": "TJ = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.594,
          "typ": 0.6,
          "max": 0.606,
          "conditions": "-40°C ≤ TJ ≤ 125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FB Bias Current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 50,
          "max": 500,
          "conditions": "VFB = 0.6V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Logic Level High",
          "symbol": "VEN_H",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Logic Level Low",
          "symbol": "VEN_L",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Bias Current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 6,
          "max": 30,
          "conditions": "VEN = 12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching Frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 230,
          "typ": 270,
          "max": 300,
          "conditions": "VFREQ = 33% of VVIN, VVIN = 12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching Frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 800,
          "max": null,
          "conditions": "VFREQ = VVIN, VVIN = 12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum OFF Time",
          "symbol": "tOFF(MIN)",
          "kind": "timing",
          "unit": "ns",
          "min": 150,
          "typ": 230,
          "max": 350,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current-Limit Comparator Offset",
          "symbol": "VOFFSET",
          "kind": "electrical",
          "unit": "mV",
          "min": -15,
          "typ": 0,
          "max": 15,
          "conditions": "VFB = 0.59V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ILIM Source Current",
          "symbol": "ICL",
          "kind": "electrical",
          "unit": "µA",
          "min": 85,
          "typ": 100,
          "max": 115,
          "conditions": "VFB = 0.59V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DH On-Resistance, High State",
          "symbol": "RDH(PULL-UP)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2,
          "max": 3,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DH On-Resistance, Low State",
          "symbol": "RDH(PULL_DOWN)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DL On-Resistance, High State",
          "symbol": "RDL(PULL-UP)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DL On-Resistance, Low State",
          "symbol": "RDL(PULL_DOWN)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.36,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "BST Leakage",
          "symbol": "ILK(BST)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIN Leakage",
          "symbol": "ILK(VIN)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "SW Leakage",
          "symbol": "ILK(SW)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Threshold Voltage",
          "symbol": "VPG_Rise",
          "kind": "electrical",
          "unit": "%VOUT",
          "min": 85,
          "typ": null,
          "max": 95,
          "conditions": "VFB rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Low Voltage",
          "symbol": "VOL_PG",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 70,
          "max": 200,
          "conditions": "VFB < 90% × VNOM, IPG = 1 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIN, FREQ, ILIM, SW to PGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 76,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VSW to PGND (Transient < 50 ns)",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "Transient < 50 ns",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD, PVDD, FB, PG, SS to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EXTVDD to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "BST to SW",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "BST to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 82,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max is VIN + 0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DH, DL to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max is VDD + 0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PGND to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10s",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Rating",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "Human body model, 1.5 kΩ in series with 100 pF",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 75,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SW, FREQ, ILIM, EN",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "max is VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EXTVDD",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 13.2,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to Ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 50.8,
          "max": null,
          "conditions": "3 mm × 3 mm QFN-16",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to Case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 25.3,
          "max": null,
          "conditions": "3 mm × 3 mm QFN-16",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mic2128yml-tr"
  ],
  "discovery_pitch": "MIC2128YML-TR (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mic2128yml-tr.kicad_sym",
    "mic2128yml-tr.kicad_mod",
    "mic2128yml-tr.glb",
    "mic2128yml-tr.step",
    "mic2128yml-tr.lbr",
    "docs/hero.png",
    "docs/mic2128yml-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mic2128yml-tr-hero.glb",
    "mic2128yml-tr-hero.overlay.json",
    "mic2128yml-tr-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}