TD1509PR

{
  "schema_version": 1,
  "type": "component",
  "slug": "td1509pr",
  "title": "TD1509PR",
  "brief": "Techcode Semicon DC-DC Converters, SOP-8. 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)",
    "td1509pr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TD1509PR",
    "manufacturer": "Techcode Semicon",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590905577361534976",
    "parts": {
      "symbol": "td1509pr.kicad_sym",
      "footprint": "td1509pr.kicad_mod",
      "model_3d": "td1509pr-hero.glb",
      "model_3d_plain": "td1509pr-etched.glb",
      "model_3d_step": "td1509pr-etched.step",
      "model_3d_step_plain": "td1509pr.step",
      "lbr": "td1509pr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3041483"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T01:38:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Vin",
        "type": "power_in",
        "description": "Positive input supply for the switching regulator, specified at 3.6 V to 45 V, and a suitable input bypass capacitor must be present at this pin to minimize voltage transients."
      },
      {
        "number": "2",
        "name": "Output",
        "type": "output",
        "description": "Internal switch output that swings between (+VIN - VSAT) and approximately -0.5 V at a duty cycle of about VOUT/VIN, so the PC board copper area connected to it should be kept minimal."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Senses the regulated output voltage to complete the feedback loop; the adjustable version uses a 1.23 V reference, with FB rated from -0.3 V to Vin+0.3 V."
      },
      {
        "number": "4",
        "name": "ON/OFF",
        "type": "input",
        "description": "Logic-level shutdown input: pulling it below about 1.3 V turns the regulator on and pulling it above 1.3 V (up to a maximum of 25 V) shuts it down, and leaving it open or tying it to ground keeps the regulator always on."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Circuit ground, to be connected to a ground plane together with the input and output capacitors, with a maximized copper area recommended for heat dissipation."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Circuit ground, to be connected to a ground plane together with the input and output capacitors, with a maximized copper area recommended for heat dissipation."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Circuit ground, to be connected to a ground plane together with the input and output capacitors, with a maximized copper area recommended for heat dissipation."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Circuit ground, to be connected to a ground plane together with the input and output capacitors, with a maximized copper area recommended for heat dissipation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pin table lists pins 5~8 as a single GND row; the same description is applied to each ; The MPN TD1509PR was matched to the SOP8 package by the ordering code (P = SOP8, R = ADJ). The order; The FB description combines the 1.23 V adjustable reference from the output-voltage section with the",
          "1/8 pins cited to the wrong page (name found elsewhere): ['7:GND@p2']"
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        "pages_sent": 17,
        "cost_usd": 0.0626,
        "at": "2026-10-18T01:36:02"
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        "pages": 17,
        "sha256": "8d1cdb542e62ec93",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Techcode Semicon",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": "this is the output (switch) pin, which should not have large areas of copper.) Large areas of copper provide the",
        "page": 12,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "8d1cdb542e62ec93aaa020b91a0a49133a11996e041ed2dc2f5c85f8afded9f5"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8d1cdb542e62ec93aaa020b91a0a49133a11996e041ed2dc2f5c85f8afded9f5",
      "rows": [
        {
          "name": "Output Voltage (ADJ)",
          "symbol": "Vout",
          "kind": "electrical",
          "unit": "V",
          "min": 1.18,
          "typ": 1.23,
          "max": 1.28,
          "conditions": "11V≤VIN≤45V, 0.2A≤ILOAD≤3A, VOUT for 9V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback bias current",
          "symbol": "Ib",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 10,
          "max": 100,
          "conditions": "Adjustable only, VFB=1.3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "VFB=12V force driver off",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Standby quiescent current",
          "symbol": "ISTBY",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 80,
          "max": 250,
          "conditions": "ON/OFF=5V, VIN=36V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Oscillator frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "KHz",
          "min": 127,
          "typ": 150,
          "max": 173,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Saturation voltage",
          "symbol": "VSAT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 1.5,
          "conditions": "IOUT=3A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current limit (peak current)",
          "symbol": "ICL",
          "kind": "electrical",
          "unit": "A",
          "min": 3.8,
          "typ": null,
          "max": 4.2,
          "conditions": "Peak Current (VFB=0V)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output leakage current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Output=0V (VFB=12V)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output leakage current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 30,
          "conditions": "Output=-1V (VIN=36V)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ON/OFF pin threshold voltage, low (regulator ON)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": null,
          "max": 1.3,
          "conditions": "Low (Regulator ON)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ON/OFF pin threshold voltage, high (regulator OFF)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.3,
          "typ": null,
          "max": 2,
          "conditions": "High (Regulator OFF)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ON/OFF pin input current, high",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 5,
          "max": 15,
          "conditions": "VLOGIC=2.5V (Regulator OFF)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ON/OFF pin input current, low",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.02,
          "max": 5,
          "conditions": "VLOGIC=0.5V (Regulator ON)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.6,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "ºC",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "ºC",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback pin voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as Vin+0.3 V (not numeric)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ON/OFF pin voltage",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as Vin+0.3 V (not numeric)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output pin voltage",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as Vin+0.3 V (not numeric)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
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          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering, 10 sec)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD (HBM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "HBM",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "ºC/W",
          "min": null,
          "typ": 85,
          "max": null,
          "conditions": "Note1: thermal resistance with copper area of approximately 3 in2",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "ºC/W",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "TD1509PR (Techcode Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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