CD5026ITS

{
  "slug": "cd5026its",
  "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",
    "cd5026its",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd5026its.kicad_sym",
    "cd5026its.kicad_mod",
    "cd5026its.glb",
    "cd5026its.step",
    "cd5026its.lbr",
    "docs/hero.png",
    "docs/cd5026its-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd5026its-hero.glb",
    "cd5026its-hero.overlay.json",
    "cd5026its-etched.glb"
  ],
  "component": {
    "mpn": "CD5026ITS",
    "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/ef586f5dc21b7777d014f80aa341dbed.pdf",
    "parts": {
      "symbol": "cd5026its.kicad_sym",
      "footprint": "cd5026its.kicad_mod",
      "model_3d": "cd5026its-hero.glb",
      "model_3d_plain": "cd5026its-etched.glb",
      "model_3d_step": "cd5026its-etched.step",
      "model_3d_step_plain": "cd5026its.step",
      "lbr": "cd5026its.lbr"
    },
    "distributor_links": {
      "lcsc": "C7502974"
    },
    "distributor_check": {
      "checked_at": "2026-11-04T23:15:10Z",
      "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": "Voltage input pin with an operating input range of 13V to 100V; supplies outside this range need an external regulator."
      },
      {
        "number": "2",
        "name": "UVLO",
        "type": "input",
        "description": "Undervoltage lockout pin set by an external divider; the VCC and REF regulators are enabled at 0.4V and the SS pin is released at 1.25V."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current-sense pin for current-mode control and limiting; output pulses terminate and enter cycle-by-cycle current limit when CS exceeds 0.5V."
      },
      {
        "number": "4",
        "name": "RES",
        "type": "passive",
        "description": "Restart timer pin; when the RES capacitor reaches 2.5V the soft-start capacitor is fully discharged and then released with a 1µA pull-up."
      },
      {
        "number": "5",
        "name": "TIME",
        "type": "input",
        "description": "Gate-driver overlap or dead-time control pin; RSET between TIME and AGND sets in-phase overlap, and RSET between TIME and REF sets anti-phase dead time."
      },
      {
        "number": "6",
        "name": "REF",
        "type": "power_out",
        "description": "5V reference voltage output with a maximum output current of 10 mA, requiring a 0.1µF decoupling capacitor to ground."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_out",
        "description": "High-voltage start-up regulator output with a regulation range of 7.3V to 7.9V, which an auxiliary winding can raise above the setpoint to switch the start-up regulator off."
      },
      {
        "number": "8",
        "name": "OUT_A",
        "type": "output",
        "description": "Main switch PWM gate driver output capable of 3A peak sink current."
      },
      {
        "number": "9",
        "name": "OUT_B",
        "type": "output",
        "description": "Active-clamp switch gate driver output capable of 0.5A peak source and sink current."
      },
      {
        "number": "10",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground, connected to signal ground at a single point."
      },
      {
        "number": "11",
        "name": "AGND",
        "type": "power_in",
        "description": "Signal ground, connected to power ground at a single point."
      },
      {
        "number": "12",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start pin; an external capacitor and the internal 50µA current source set the soft-start ramp, and the SS current drops to 1µA after restart."
      },
      {
        "number": "13",
        "name": "COMP",
        "type": "input",
        "description": "PWM control pin fed through the optocoupler into an internal NPN current mirror; PWM duty cycle is maximum when input current is zero."
      },
      {
        "number": "14",
        "name": "RT",
        "type": "passive",
        "description": "Oscillator frequency control pin, normally biased at 2V; the total external resistance between RT and AGND sets the internal oscillator frequency."
      },
      {
        "number": "15",
        "name": "SYNC",
        "type": "bidirectional",
        "description": "Oscillator synchronization input/output that lets the internal oscillator lock to an external clock or to other CD5026 devices."
      },
      {
        "number": "16",
        "name": "DCL",
        "type": "input",
        "description": "Maximum duty-cycle control pin; a resistor divider from RT to AGND sets the maximum OUT_A duty cycle."
      }
    ],
    "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 page 3 pin diagram is an image and not readable in the text. The pin numbers and names come from"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0181,
        "at": "2026-11-04T23:15:00"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ef586f5dc21b7777d014f80aa341dbed.pdf",
        "pages": 14,
        "sha256": "2740d483b74f75a9",
        "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": "cd5026its.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": "2026-11-04",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd5026its-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9279c87b207279a41755e81dbdd10e2f4cc8736623d636762200c628c7b40c1f",
        "checked": "2026-11-04",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}