CD5025ITS

{
  "slug": "cd5025its",
  "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 (pmic)",
    "cd5025its",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd5025its.kicad_sym",
    "cd5025its.kicad_mod",
    "cd5025its.glb",
    "cd5025its.step",
    "cd5025its.lbr",
    "docs/hero.png",
    "docs/cd5025its-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd5025its-hero.glb",
    "cd5025its-hero.overlay.json",
    "cd5025its-etched.glb"
  ],
  "component": {
    "mpn": "CD5025ITS",
    "manufacturer": "Shenzhen CYT Semicon Tech",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600708658837794816",
    "parts": {
      "symbol": "cd5025its.kicad_sym",
      "footprint": "cd5025its.kicad_mod",
      "model_3d": "cd5025its-hero.glb",
      "model_3d_plain": "cd5025its-etched.glb",
      "model_3d_step": "cd5025its-etched.step",
      "model_3d_step_plain": "cd5025its.step",
      "lbr": "cd5025its.lbr"
    },
    "distributor_links": {
      "lcsc": "C7502978"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T03:51:57Z",
      "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": "Power input for the controller, specified for +13 V to +105 V (absolute maximum VIN to GND is -0.3 V to 105 V)."
      },
      {
        "number": "2",
        "name": "RAMP",
        "type": "passive",
        "description": "Modulator ramp signal pin whose slope is set by an external RC network from VIN, and which is discharged by an internal FET at the end of each cycle."
      },
      {
        "number": "3",
        "name": "CS1",
        "type": "input",
        "description": "Cycle-by-cycle current-limit sense input; the output enters cycle-by-cycle current limit when CS1 exceeds 0.25 V (threshold 0.22 V to 0.28 V, absolute maximum -0.3 V to 1 V)."
      },
      {
        "number": "4",
        "name": "CS2",
        "type": "input",
        "description": "Soft-start current-sense input; when CS2 exceeds 0.5 V (threshold 0.45 V to 0.55 V) the outputs are disabled and soft-start begins, with the soft-start capacitor fully discharged before release at a 1 µA pull-up."
      },
      {
        "number": "5",
        "name": "TIME",
        "type": "passive",
        "description": "Sets the overlap or dead time of OUT_A and OUT_B through an external RSET: a resistor to GND gives overlapping pulses, and a resistor to REF gives dead-time (out-of-phase) pulses."
      },
      {
        "number": "6",
        "name": "REF",
        "type": "power_out",
        "description": "5 V reference output (4.85 V to 5.15 V) with a maximum output current of 10 mA, requiring a 0.1 µF decoupling capacitor to ground at the pin."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal high-voltage regulator output regulated to 7.6 V (7.3 V to 7.9 V); the internal start-up regulator turns off when an auxiliary winding raises this pin above the regulation setpoint, and the recommended VCC input range is 8 V to 15 V."
      },
      {
        "number": "8",
        "name": "OUT_A",
        "type": "output",
        "description": "Main switch gate driver output, capable of 3 A peak sink current."
      },
      {
        "number": "9",
        "name": "OUT_B",
        "type": "output",
        "description": "Active clamp switch gate driver output, capable of 1.25 A peak sink current."
      },
      {
        "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; for the WSON package option the exposed pad is connected to analog ground."
      },
      {
        "number": "12",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start control pin where an external capacitor and an internal 20 µA current source set the soft-start ramp, and the source drops to 1 µA after a CS2 overcurrent or over-temperature event."
      },
      {
        "number": "13",
        "name": "COMP",
        "type": "input",
        "description": "Input pulse-width control pin that requires an external pull-up resistor when driven by an optocoupler."
      },
      {
        "number": "14",
        "name": "RT",
        "type": "passive",
        "description": "Oscillator timing pin; a resistor between RT and GND sets the internal oscillator frequency (200 kHz to 240 kHz at RT = 26.7 kΩ under the test conditions)."
      },
      {
        "number": "15",
        "name": "SYNC",
        "type": "input",
        "description": "Oscillator synchronization input that allows the internal oscillator to lock to an external clock running 20% below its free-running frequency, with no maximum sync frequency stated."
      },
      {
        "number": "16",
        "name": "UVLO",
        "type": "input",
        "description": "Line undervoltage lockout input where an external divider sets the shutdown level against a 2.5 V comparator threshold, with hysteresis from an internal 20 µA current source switched at the threshold."
      }
    ],
    "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 top-view pin diagram (page 3) is an image and was not in the extracted text; pin numbers and nam; The datasheet gives no electrical type for each pin, so the KiCad ERC types were inferred from the f; The datasheet's AGND note about an exposed pad applies only to the WSON16 option and is included as "
        ],
        "pages_sent": 12,
        "cost_usd": 0.0385,
        "at": "2026-10-18T03:50:16"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600708658837794816",
        "pages": 12,
        "sha256": "74cade07119e10e0",
        "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": "cd5025its.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd5025its-etched.step",
        "role": "eda",
        "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": "dbc093ee7452a68d1c7c8dcee1c99bb72d0b322522d6dcee892d608db0a70888",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}