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Ray Set visibility: public 5d784c9 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "td7590",
  "title": "TD7590",
  "brief": "Techcode Semicon DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "td7590",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TD7590",
    "manufacturer": "Techcode Semicon",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/25d73129325c79ec2fa268c4148c77bd.pdf",
    "parts": {
      "symbol": "td7590.kicad_sym",
      "footprint": "td7590.kicad_mod",
      "model_3d": "td7590-hero.glb",
      "model_3d_plain": "td7590-etched.glb",
      "model_3d_step": "td7590-etched.step",
      "model_3d_step_plain": "td7590.step",
      "lbr": "td7590.lbr"
    },
    "distributor_links": {
      "lcsc": "C469172"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T18:49:12Z",
      "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": "Supply voltage input for the regulator, which operates from 3.6V to 36V DC and should be bypassed to GND with a suitably large capacitor."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be placed outside the Schottky diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into the TD7590."
      },
      {
        "number": "3",
        "name": "Output",
        "type": "output",
        "description": "Power switch output (SW switch node) that supplies power to the output, switching between (VIN - VSAT) and approximately -0.5V at a duty cycle of about VOUT/VIN, so its PCB copper area should be kept minimal."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin that senses the regulated output voltage through an external resistor divider, with a feedback threshold voltage of 1.222V."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Digital enable input that turns the regulator off when pulled below about 0.7V and on when pulled above 1.3V, with a maximum of 12V."
      },
      {
        "number": "6",
        "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: Figure 2 notes an exposed pad on the backside that must be connected to pin 3. It is not a numbered ; The ordering information lists both tube (blank) and tape-and-reel (R) packing options for the TO263; The pin table names pin 3 'Output' while the function block and pin functions call it SW. The name i",
          "exposed pad 6 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0447,
        "at": "2026-11-05T18:48:56"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/25d73129325c79ec2fa268c4148c77bd.pdf",
        "pages": 13,
        "sha256": "799509304e24c4df",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "td7590.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "94c2a3dc1aaad85b6b5193f97d9a7c61b4e28bac25952a1e629557bcf747e246",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "td7590-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "494536a71cd87f3f2fd83ac4e3770f036b6c5f997cf39bd3f2398b11a3c8bf19",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Techcode Semicon",
      "Package": "TO-263-5",
      "Category": "Power Management ICs",
      "Pins": "6"
    },
    "appearance": {
      "contacts": {
        "quote": "board copper area connected to this pin should",
        "page": 9,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "799509304e24c4df401a975a586917d14fe2dd0ea00583c9245589f74b404a34"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "799509304e24c4df401a975a586917d14fe2dd0ea00583c9245589f74b404a34",
      "rows": [
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Feedback Pin Voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable Pin Voltage",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch Pin Voltage",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Power Limited",
          "symbol": "Pout",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD (HBM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "HBM",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.6,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature (recommended)",
          "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": "electrical",
          "unit": "V",
          "min": 3.6,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "ISTBY",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 30,
          "max": 90,
          "conditions": "VEN=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.6,
          "max": 4,
          "conditions": "VEN=2V, VFB=1.3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 1.185,
          "typ": 1.222,
          "max": 1.26,
          "conditions": "VIN = 3.6V to 23V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Bias Current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "VFB=1.3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 6,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillator Frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "KHz",
          "min": 200,
          "typ": 240,
          "max": 280,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Threshold",
          "symbol": "VEN",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": 1.2,
          "max": 1.7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Input Leakage Current (high)",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": -0.1,
          "max": -1,
          "conditions": "VEN=2.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Input Leakage Current (low)",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": -3,
          "max": -10,
          "conditions": "VEN=0.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max. Duty Cycle",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VFB=0V, ISW=0.1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Frequency of Current Limit or Short Circuit Protection",
          "symbol": "FOSC1",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 42,
          "max": null,
          "conditions": "VFB=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Internal PMOS RDSON",
          "symbol": "RDSON",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "VIN =12V, VFB=0V, VEN=12V, Iout=5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Efficiency",
          "symbol": "η",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 92,
          "max": null,
          "conditions": "VIN=12V, Vout=5V, Iout=5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown",
          "symbol": "TOTSD",
          "kind": "electrical",
          "unit": "ºC",
          "min": null,
          "typ": 165,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "ºC / W",
          "min": null,
          "typ": 23,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "ºC / W",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "td7590"
  ],
  "discovery_pitch": "TD7590 (Techcode Semicon) 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",
    "td7590.kicad_sym",
    "td7590.kicad_mod",
    "td7590.glb",
    "td7590.step",
    "td7590.lbr",
    "docs/hero.png",
    "docs/td7590-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "td7590-hero.glb",
    "td7590-hero.overlay.json",
    "td7590-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}