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Ray Set visibility: public 70805b4 7d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "isl8018irajz-t7a",
  "title": "ISL8018IRAJZ-T7A",
  "brief": "RENESAS DC-DC Converters, QFN-20-EP(3x4). 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",
    "isl8018irajz-t7a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ISL8018IRAJZ-T7A",
    "manufacturer": "RENESAS",
    "package": "QFN-20-EP(3x4)",
    "pin_count": 21,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588952367450763264",
    "parts": {
      "symbol": "isl8018irajz-t7a.kicad_sym",
      "footprint": "isl8018irajz-t7a.kicad_mod",
      "model_3d": "isl8018irajz-t7a-hero.glb",
      "model_3d_plain": "isl8018irajz-t7a-etched.glb",
      "model_3d_step": "isl8018irajz-t7a-etched.step",
      "model_3d_step_plain": "isl8018irajz-t7a.step",
      "lbr": "isl8018irajz-t7a.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071104",
      "digikey": "ISL8018IRAJZ-T7ATR-ND",
      "mouser": "968-ISL8018IRAJZ-T7A"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T03:59:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ISL8018IRAJZ-T7ATR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "968-ISL8018IRAJZ-T7A",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground; one of three PGND pins (1, 19, 20) on the power ground return."
      },
      {
        "number": "2",
        "name": "PHASE",
        "type": "output",
        "description": "Switching node connection; connect to one terminal of the inductor (PHASE pins 2, 3, 4 are tied together)."
      },
      {
        "number": "3",
        "name": "PHASE",
        "type": "output",
        "description": "Switching node connection; connect to one terminal of the inductor (PHASE pins 2, 3, 4 are tied together)."
      },
      {
        "number": "4",
        "name": "PHASE",
        "type": "output",
        "description": "Switching node connection; connect to one terminal of the inductor (PHASE pins 2, 3, 4 are tied together)."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage, 2.7V to 5.5V per the datasheet; connect two 22µF ceramic capacitors to power ground."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage, 2.7V to 5.5V per the datasheet; connect two 22µF ceramic capacitors to power ground."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage, 2.7V to 5.5V per the datasheet; connect two 22µF ceramic capacitors to power ground."
      },
      {
        "number": "8",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power-good output requiring a 10kΩ to 100kΩ pull-up between VIN and PG; PG rising edge is delayed 1ms after the output reaches regulation at power-up or EN high."
      },
      {
        "number": "9",
        "name": "SYNCOUT",
        "type": "output",
        "description": "Outputs a 250µA current source turned on at the internal clock or SYNCIN rising edge; reset discharges it to 0V at 0.8V and it is held at 0V in PFM light load."
      },
      {
        "number": "10",
        "name": "SYNCIN",
        "type": "input",
        "description": "Mode select (high or VIN for PWM, low or ground for PFM) and positive-edge external synchronization input, with an internal 1MΩ pull-down."
      },
      {
        "number": "11",
        "name": "EN",
        "type": "input",
        "description": "Regulator enable; driving high enables the output, driving low shuts down the chip and discharges the output capacitor."
      },
      {
        "number": "12",
        "name": "FS",
        "type": "passive",
        "description": "Oscillator frequency set by resistor RFS from FS to GND, programmable 500kHz to 4MHz; default 1MHz with internal compensation when FS is tied to VIN."
      },
      {
        "number": "13",
        "name": "VSET",
        "type": "input",
        "description": "Output margining setting: connect to SGND for -10%, leave floating for no margining, connect to VIN for +10%."
      },
      {
        "number": "14",
        "name": "ISET",
        "type": "input",
        "description": "Peak and skip current limit setting: connect to SGND for 3A, to VIN for 5A, leave floating for 8A."
      },
      {
        "number": "15",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start time adjust: SGND gives internal 1ms rise time; a capacitor from SS to SGND sets longer time, not exceeding 33nF per IC."
      },
      {
        "number": "16",
        "name": "COMP",
        "type": "passive",
        "description": "Output of the transconductance error amplifier when the FS resistor is used; tie to SGND when internal compensation is used (FS = VIN)."
      },
      {
        "number": "17",
        "name": "VFB",
        "type": "input",
        "description": "Negative input to the transconductance error amplifier; set output via external divider to any voltage between VIN and the 0.6V reference, and also used to determine PG state."
      },
      {
        "number": "18",
        "name": "SGND",
        "type": "power_in",
        "description": "Signal ground; the exposed pad must be connected to this pin."
      },
      {
        "number": "19",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground; one of three PGND pins (1, 19, 20)."
      },
      {
        "number": "20",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground; one of three PGND pins (1, 19, 20)."
      },
      {
        "number": "21",
        "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: The pin description table lists 'COMP, VFB' for pins 16, 17 without stating which pin is which. I as; The exposed pad is not given a numeric pin number in the datasheet; it is listed as EPAD and is incl; Multi-pin nets (PHASE, VIN, PGND) are grouped in the datasheet table; each pin is listed individuall",
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0458,
        "at": "2026-10-19T03:59:23"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588952367450763264",
        "pages": 21,
        "sha256": "0661a8391fc5d7e1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "isl8018irajz-t7a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9305bb1f2217b3a3c4923c5aad9089084cd988b0009a6b8028004dfc00dac347",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "isl8018irajz-t7a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "04ebe5dd6e2a33afb2b67867fbba14cd94186428d92646d943c363556768c1ac",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "RENESAS",
      "Package": "QFN-20-EP(3x4)",
      "Category": "Power Supply Chip",
      "Pins": "21"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0661a8391fc5d7e1b3b871e5ed0ab50a045f343770923301ada6f085163125b4",
      "rows": [
        {
          "name": "VIN Supply Voltage (DC)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.8,
          "conditions": "DC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VIN Supply Voltage (20ms)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "20ms",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN, FS, ISET, PG, SYNCOUT, SYNCIN, VFB, VSET Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Reference to GND; upper limit VIN + 0.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PHASE Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1.5,
          "typ": null,
          "max": null,
          "conditions": "100ns",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PHASE Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "DC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PHASE Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "DC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PHASE Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "20ms",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "COMP, SS Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2.7,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ESD Human Body Model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "Tested per JESD22-A114",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ESD Machine Model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Tested per JESD22-A115",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ESD Charged Device Model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "Tested per JESD22-C101E",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Latch-up",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Tested per JESD-78A; Class 2, Level A; at +85°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VIN Supply Voltage Range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Current Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Ambient (3x4 QFN)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 42,
          "max": null,
          "conditions": "Free air, high effective thermal conductivity board with direct attach (Notes 4, 5)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Case (3x4 QFN)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "Case at center of exposed metal pad (Note 5)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VIN Undervoltage Lockout Threshold (rising)",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.5,
          "max": 2.7,
          "conditions": "Rising, no load",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VIN Undervoltage Lockout Threshold (falling)",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.2,
          "max": 2.4,
          "conditions": "Falling, no load",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current",
          "symbol": "IVIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 70,
          "max": 95,
          "conditions": "SYNCIN = GND, no load at the output and no switches switching",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current (switching)",
          "symbol": "IVIN",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 8,
          "max": 15,
          "conditions": "SYNCIN = VIN, fSW = 1MHz, no load at the output",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 5,
          "max": 9.5,
          "conditions": "SYNCIN = GND, VIN = 5.5V, EN = low",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage (VSET = VIN)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.651,
          "typ": 0.66,
          "max": 0.669,
          "conditions": "VSET = VIN",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage (VSET = FLOAT)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.594,
          "typ": 0.6,
          "max": 0.606,
          "conditions": "VSET = FLOAT",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage (VSET = SGND)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.531,
          "typ": 0.54,
          "max": 0.549,
          "conditions": "VSET = SGND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Margining (+)",
          "symbol": "VVFB",
          "kind": "electrical",
          "unit": "%",
          "min": 9.5,
          "typ": 10,
          "max": 10.5,
          "conditions": "VSET = VIN, percent of output changed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Margining (-)",
          "symbol": "VVFB",
          "kind": "electrical",
          "unit": "%",
          "min": -10.5,
          "typ": -10,
          "max": -9.5,
          "conditions": "VSET = SGND, percent of output changed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Soft-Start Charging Current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": 1.4,
          "typ": 1.8,
          "max": 2.2,
          "conditions": "VSS = 0.1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Positive Peak Current Limit (ISET = FLOAT)",
          "symbol": "IPLIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 9.7,
          "typ": 12.8,
          "max": 15.8,
          "conditions": "ISET = FLOAT",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Positive Peak Current Limit (ISET = VIN)",
          "symbol": "IPLIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 6.7,
          "typ": 8.8,
          "max": 10.9,
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