PD70101ILQ-TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "pd70101ilq-tr",
  "title": "PD70101ILQ-TR",
  "brief": "Microchip Tech Power Over Ethernet (PoE) Controllers, QFN-32(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)",
    "pd70101ilq-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "PD70101ILQ-TR",
    "manufacturer": "Microchip Tech",
    "package": "QFN-32(5x5)",
    "pin_count": 33,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Over Ethernet (PoE) Controllers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9687138376367bb1f17fb08f5df577de.pdf",
    "parts": {
      "symbol": "pd70101ilq-tr.kicad_sym",
      "footprint": "pd70101ilq-tr.kicad_mod",
      "model_3d": "pd70101ilq-tr-hero.glb",
      "model_3d_plain": "pd70101ilq-tr-etched.glb",
      "model_3d_step": "pd70101ilq-tr-etched.step",
      "model_3d_step_plain": "pd70101ilq-tr.step",
      "lbr": "pd70101ilq-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3189208",
      "digikey": "PD70101ILQTR-ND",
      "mouser": "494-PD70101"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T18:02:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "PD70101ILQTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "494-PD70101",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RDET",
        "type": "passive",
        "description": "Connect a 24.9 kΩ, 1% detection resistor from this pin to VPP."
      },
      {
        "number": "2",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain active-low output that flags the power rails (VPN_OUT) are ready, with the MOSFET rated for 5 mA and pull-up to VPP."
      },
      {
        "number": "3",
        "name": "RREF",
        "type": "passive",
        "description": "Connect a 240k 1% bias resistor between this pin and VPN_IN for the PD interface."
      },
      {
        "number": "4",
        "name": "RCLASS",
        "type": "passive",
        "description": "Connect an external classification resistor between this pin and VPN_IN to set the power class."
      },
      {
        "number": "5",
        "name": "VPN_IN",
        "type": "power_in",
        "description": "VPort negative input connected to the isolation switch N-channel MOSFET source."
      },
      {
        "number": "6",
        "name": "N/C",
        "type": "unconnected",
        "description": "Not used."
      },
      {
        "number": "7",
        "name": "N/C",
        "type": "unconnected",
        "description": "Not used on PD70101; AT_FLAG open-drain output (active low) is a PD70201 function."
      },
      {
        "number": "8",
        "name": "VPN_OUT",
        "type": "power_out",
        "description": "VPort negative output connected to the isolation switch output and N-channel MOSFET drain."
      },
      {
        "number": "9",
        "name": "N/C",
        "type": "unconnected",
        "description": "Not used."
      },
      {
        "number": "10",
        "name": "ENABLE",
        "type": "input",
        "description": "Logic-level enable input for the DC-DC controller, turned on by pulling this pin to VL, with thresholds VHI 2.0 V and VLO 0.8 V."
      },
      {
        "number": "11",
        "name": "VINS",
        "type": "input",
        "description": "VPP input voltage sensing for the UVLO comparator, connected through an external divider from VPP to GND with a 1.2 V threshold."
      },
      {
        "number": "12",
        "name": "HYST",
        "type": "passive",
        "description": "Output of the VINS/UVLO comparator used to program VPP UVLO hysteresis."
      },
      {
        "number": "13",
        "name": "SYNC",
        "type": "input",
        "description": "External clock synchronization input that sets the DC-DC switching frequency to the applied clock."
      },
      {
        "number": "14",
        "name": "RFREQ",
        "type": "passive",
        "description": "Connect a resistor from this pin to GND to set the DC-DC switching frequency."
      },
      {
        "number": "15",
        "name": "SS",
        "type": "passive",
        "description": "Connect a capacitor from this pin to GND to set the DC-DC soft-start time, charged to 1.2 V."
      },
      {
        "number": "16",
        "name": "RCLP",
        "type": "passive",
        "description": "Connect a resistor to GND to program the low power mode clamp voltage, or tie to GND to disable LPM."
      },
      {
        "number": "17",
        "name": "VSN",
        "type": "input",
        "description": "Negative input of the differential amplifier, connected to the resistor divider junction from Vo- to GND."
      },
      {
        "number": "18",
        "name": "VSP",
        "type": "input",
        "description": "Positive input of the differential amplifier, connected to the resistor divider junction from Vo+ to GND."
      },
      {
        "number": "19",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output, shorted to FB for isolated converters or connected to FB via RC compensation for non-isolated converters."
      },
      {
        "number": "20",
        "name": "DAO",
        "type": "output",
        "description": "Differential amplifier output, connected to FB externally for non-isolated direct buck converter."
      },
      {
        "number": "21",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the error amplifier, connected to the optocoupler for isolated DC-DC or to RC compensation for non-isolated DC-DC."
      },
      {
        "number": "22",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground, connected to a local AGND plane with the soft-start capacitor and frequency resistor returned to it."
      },
      {
        "number": "23",
        "name": "VL",
        "type": "power_out",
        "description": "5 V (GND referenced) internal LDO output that requires a 1 µF or higher ceramic capacitor to GND."
      },
      {
        "number": "24",
        "name": "SG",
        "type": "output",
        "description": "Secondary gate driver output, the complement of PG, left open if unused and low in low power skip mode."
      },
      {
        "number": "25",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground connected to a local PGND plane for VCC decoupling, PG and SG drivers, and the primary current sense return."
      },
      {
        "number": "26",
        "name": "CSN",
        "type": "input",
        "description": "Negative input of the current sense amplifier, Kelvin connected to the PGND side of the primary current sense resistor."
      },
      {
        "number": "27",
        "name": "CSP",
        "type": "input",
        "description": "Positive input of the current sense amplifier, Kelvin connected to the non-PGND side of the primary current sense resistor."
      },
      {
        "number": "28",
        "name": "PG",
        "type": "output",
        "description": "Primary gate driver output connected to the gate of the primary side power MOSFET, directly or via a resistor."
      },
      {
        "number": "29",
        "name": "VH",
        "type": "power_out",
        "description": "5 V high-side (VCC referenced) internal LDO output that requires a 0.1 µF or higher ceramic capacitor to VCC."
      },
      {
        "number": "30",
        "name": "VCC",
        "type": "power_in",
        "description": "Input supply to the DC-DC controller that requires a 4.7 µF or higher ceramic capacitor to PGND."
      },
      {
        "number": "31",
        "name": "VAUX",
        "type": "power_out",
        "description": "Auxiliary voltage reference to VPN_OUT used for DC-DC start-up, connected directly to VCC for PoE-only power or through a 30 V schottky diode for multiple sources."
      },
      {
        "number": "32",
        "name": "VPP",
        "type": "power_in",
        "description": "Positive terminal of the PoE input port, connected to the positive terminal of the input bridges on the CDET positive side."
      },
      {
        "number": "33",
        "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: Pin rows are taken from PD70101 column of Table 3-1 (pages 15-17). Pins 6, 7 and 9 are N/C for PD701"
        ],
        "pages_sent": 16,
        "cost_usd": 0.03,
        "at": "2026-11-02T18:02:46"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9687138376367bb1f17fb08f5df577de.pdf",
        "pages": 31,
        "sha256": "25d7605430c73dad",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "zmin_mm": 0,
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        "footprint_binding": "identity",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-32(5x5)",
      "Category": "Power Management (PMIC)",
      "Pins": "33"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
        {
          "name": "VPP, RDET, VPN_OUT (with respect to VPN_IN)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "VDC",
          "min": -0.3,
          "typ": null,
          "max": 74,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "RREF, RCLASS (with respect to VPN_IN)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "PGOOD, AT_FLAG, VAUX (with respect to VPN_OUT)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 74,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VCC (with respect to PGND)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "VDC",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "PG, SG (with respect to PGND)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "VDC",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VL, VSN, VSP (with respect to PGND)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VH (with respect to VCC)",
          "symbol": "VH",
          "kind": "absolute_maximum",
          "unit": "VDC",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "All other pins (with respect to GND)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "VDC",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "ESD (HBM) protection at all I/O pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Pins 2 and 31 are ±150 V HBM",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature (TJMAX)",
          "symbol": "TJMAX",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Operational ambient temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Peak package solder re-flow temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "40 seconds maximum exposure, MSL3",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction to case thermal resistance",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "No forced airflow; four-layer JESD-51 board",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction to pad thermal resistance",
          "symbol": "θJP",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "No forced airflow; four-layer JESD-51 board",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction to ambient thermal resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 23,
          "conditions": "No forced airflow; four-layer JESD-51 board",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VPP",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": 55,
          "max": 57,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Detection voltage range",
          "symbol": "DETRANGE",
          "kind": "electrical",
          "unit": "V",
          "min": 1.3,
          "typ": null,
          "max": 10.1,
          "conditions": "Measured between VPP and VPN IN",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Detection switch ON resistance",
          "symbol": "RDET-ON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "2.5V ≤ (ΔVPP to VPNIN) ≤ 10.1 V; measured between RDET and VPN IN",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Detection is disconnected",
          "symbol": "VDET-OFF",
          "kind": "electrical",
          "unit": "V",
          "min": 10.1,
          "typ": null,
          "max": 12.8,
          "conditions": "Measured between VPP and VPN IN",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Detection switch OFF resistance",
          "symbol": "RDET-OFF",
          "kind": "electrical",
          "unit": "MΩ",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "12.8 V ≤ (ΔVPP to VPNIN) ≤ 57.0 V; measured between RDET and VPNIN",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input offset current",
          "symbol": "IOFFSET",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 16,
          "conditions": "2.5 V ≤ VPP ≤ 10.1 V; –40 °C ≤ TJ ≤ 85 °C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input offset current",
          "symbol": "IOFFSET",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "2.5 V ≤ VPP ≤ 10.1 V; –40 °C ≤ TJ ≤ 55 °C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "RDET reconnection level",
          "symbol": "VRDET-ON",
          "kind": "electrical",
          "unit": "V",
          "min": 1.95,
          "typ": 3,
          "max": 4.85,
          "conditions": "Measured between VPP and VPNIN",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Classification current source, turn ON threshold range",
          "symbol": "VTH-LOW-ON",
          "kind": "electrical",
          "unit": "V",
          "min": 11.4,
          "typ": null,
          "max": 13.7,
          "conditions": "Measured at VPP; turn on for any ICLASS while VPP increases",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Classification disconnection minimum hysteresis voltage",
          "symbol": "VHST",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "Hysteresis between VTH-low-on and VTH-low-off",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Classification current source, turn OFF threshold range",
          "symbol": "VTH-HIGH-OFF",
          "kind": "electrical",
          "unit": "V",
          "min": 20.9,
          "typ": null,
          "max": 23.9,
          "conditions": "Measured at VPP; turn off while VPP increases",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Current limit threshold",
          "symbol": "ICLASS-LIM",
          "kind": "electrical",
          "unit": "mA",
          "min": 50,
          "typ": 68,
          "max": 80,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input current IPP when classification function is enabled, Class 1",
          "symbol": "ICLASS-EN",
          "kind": "electrical",
          "unit": "mA",
          "min": 9.5,
          "typ": 10.5,
          "max": 11.5,
          "conditions": "Class 1 RCLASS = 133 Ω ±1%",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input current IPP when classification function is enabled, Class 2",
          "symbol": "ICLASS-EN",
          "kind": "electrical",
          "unit": "mA",
          "min": 17.5,
          "typ": 18.5,
          "max": 19.5,
          "conditions": "Class 2 RCLASS = 69.8 Ω ±1%",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input current IPP when classification function is enabled, Class 3",
          "symbol": "ICLASS-EN",
          "kind": "electrical",
          "unit": "mA",
          "min": 26.5,
          "typ": 28,
          "max": 29.5,
          "conditions": "Class 3 RCLASS = 45.3 Ω ±1%",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input current IPP when classification function is enabled, Class 4",
          "symbol": "ICLASS-EN",
          "kind": "electrical",
          "unit": "mA",
          "min": 38,
          "typ": 40,
          "max": 42,
          "conditions": "Class 4 RCLASS = 30.9 Ω ±1%",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "RCLASS voltage",
          "symbol": "RCLASS",
          "kind": "electrical",
          "unit": "V",
          "min": 1.142,
          "typ": null,
          "max": 1.278,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Mark, working range",
          "symbol": "VMARK",
          "kind": "electrical",
          "unit": "V",
          "min": 4.9,
          "typ": null,
          "max": 10.1,
          "conditions": "VPP failing edge",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Mark current",
          "symbol": "IMARK",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.25,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        }
      ]
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