CD5041ITS

{
  "slug": "cd5041its",
  "version": "0.1.0",
  "type": "component",
  "description": "Shenzhen CYT Semicon Tech DC-DC Converters, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management",
    "cd5041its",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd5041its.kicad_sym",
    "cd5041its.kicad_mod",
    "cd5041its.glb",
    "cd5041its.step",
    "cd5041its.lbr",
    "docs/hero.png",
    "docs/cd5041its-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd5041its-hero.glb",
    "cd5041its-hero.overlay.json",
    "cd5041its-etched.glb"
  ],
  "component": {
    "mpn": "CD5041ITS",
    "manufacturer": "Shenzhen CYT Semicon Tech",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Power Management",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/34e9313c786d7f8dec176e1e5532cd60.pdf",
    "parts": {
      "symbol": "cd5041its.kicad_sym",
      "footprint": "cd5041its.kicad_mod",
      "model_3d": "cd5041its-hero.glb",
      "model_3d_plain": "cd5041its-etched.glb",
      "model_3d_step": "cd5041its-etched.step",
      "model_3d_step_plain": "cd5041its.step",
      "lbr": "cd5041its.lbr"
    },
    "distributor_links": {
      "lcsc": "C7502983"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:26:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 884 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input pin with an input range of +15V to +100V (recommended operating 15V to 90V)."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin, inverting input of the internal error amplifier, whose non-inverting input is tied to the 0.75V reference."
      },
      {
        "number": "3",
        "name": "COMP",
        "type": "output",
        "description": "Internal error amplifier output with an internal 5kΩ pull-up resistor; the error amplifier provides an active sink."
      },
      {
        "number": "4",
        "name": "REF",
        "type": "power_out",
        "description": "Reference voltage output with a maximum output current of 10mA, to be decoupled locally with a 0.1μF capacitor; it stays low until UV and VCCUV are satisfied."
      },
      {
        "number": "5",
        "name": "HD",
        "type": "output",
        "description": "Buck switch PWM control output whose maximum duty cycle is clamped to correspond to a typical 240ns off-time each cycle."
      },
      {
        "number": "6",
        "name": "LD",
        "type": "output",
        "description": "Synchronous switch control output, the inverse of the HD output, able to drive a synchronous rectifier switch via an LM5101 or LM5102 low-side driver."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_out",
        "description": "Output of the internal high-voltage regulator (VCCReg 8.7V to 9.3V); the internal start-up regulator shuts off if an auxiliary winding raises this pin above the regulation set point, reducing IC power dissipation."
      },
      {
        "number": "8",
        "name": "PUSH",
        "type": "output",
        "description": "Push-pull gate driver output with 1.5A peak output capability."
      },
      {
        "number": "9",
        "name": "PULL",
        "type": "output",
        "description": "Push-pull gate driver output with 1.5A peak output capability."
      },
      {
        "number": "10",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground, connected directly to analog ground."
      },
      {
        "number": "11",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground, connected directly to power ground."
      },
      {
        "number": "12",
        "name": "CS",
        "type": "input",
        "description": "Current sense input with 50ns leading-edge blanking; a separate dedicated comparator enters cycle-by-cycle current limit if CS exceeds 0.5V."
      },
      {
        "number": "13",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start control pin where an external capacitor and the internal 10μA current source set the soft-start ramp."
      },
      {
        "number": "14",
        "name": "TIME",
        "type": "passive",
        "description": "Push-pull overlap and dead time control pin where RSET to GND produces overlap time and RSET to REF produces dead time."
      },
      {
        "number": "15",
        "name": "RT/SYNC",
        "type": "bidirectional",
        "description": "Oscillator timing resistor pin where an external resistor sets the oscillator frequency; it also accepts an external oscillator for synchronization."
      },
      {
        "number": "16",
        "name": "UVLO",
        "type": "input",
        "description": "Line undervoltage shutdown pin set by an external divider from the converter source, with a 2.5V operating threshold and hysteresis set by an internal 20μA current source."
      }
    ],
    "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 for COMP, SS, TIME and RT/SYNC are inferred from the descriptions. The pin 1 VIN range in "
        ],
        "pages_sent": 12,
        "cost_usd": 0.0751,
        "at": "2026-10-23T18:25:55"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/34e9313c786d7f8dec176e1e5532cd60.pdf",
        "pages": 12,
        "sha256": "97cc9a67c1f29f9b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cd5041its.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd5041its-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "zmin_mm": -0.0,
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        "sha256": "59d378cac9be6b8d099a0f76ab746eedbac6a26fea70e3bd39da2eb1bc0389b2",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}