CD5025ITS

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd5025its",
  "title": "CD5025ITS",
  "brief": "Shenzhen CYT Semicon Tech DC-DC Converters, TSSOP-16. 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)",
    "cd5025its",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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",
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        "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
      }
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "checked": "2026-10-18",
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      },
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen CYT Semicon Tech",
      "Package": "TSSOP-16",
      "Category": "Power Management (PMIC)",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
        {
          "name": "VCC regulated output voltage",
          "symbol": "VCCReg",
          "kind": "electrical",
          "unit": "V",
          "min": 7.3,
          "typ": 7.6,
          "max": 7.9,
          "conditions": "UVLO=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC load capability",
          "symbol": "IVCC-limit",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": 25,
          "max": null,
          "conditions": "UVLO=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Start-up regulator leakage current",
          "symbol": "IVIN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 165,
          "max": 500,
          "conditions": "UVLO=3V，VCC=10V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC UVLO (rising)",
          "symbol": "VVCC_EN",
          "kind": "electrical",
          "unit": "V",
          "min": 7.08,
          "typ": 7.48,
          "max": null,
          "conditions": "VIN= 7V，UVLO=3V，COMP=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC UVLO (falling)",
          "symbol": "VVCC_DIS",
          "kind": "electrical",
          "unit": "V",
          "min": 5.08,
          "typ": 6.1,
          "max": 6.9,
          "conditions": "VIN= 7V，UVLO=3V，COMP=3V",
          "source_page": 4,
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        },
        {
          "name": "VCC supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4.2,
          "conditions": "VCC=10V，UVLO=3V，COMP=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 4.85,
          "typ": 5,
          "max": 5.15,
          "conditions": "UVLO=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Cycle-by-cycle current limit threshold (CS1)",
          "symbol": "VCS1",
          "kind": "electrical",
          "unit": "V",
          "min": 0.22,
          "typ": 0.25,
          "max": 0.28,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft-start overcurrent threshold (CS2)",
          "symbol": "VCS2",
          "kind": "electrical",
          "unit": "V",
          "min": 0.45,
          "typ": 0.5,
          "max": 0.55,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-off threshold",
          "symbol": "UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 2.44,
          "typ": 2.5,
          "max": 2.56,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis current when turned off",
          "symbol": "IUVLO",
          "kind": "electrical",
          "unit": "μA",
          "min": 16,
          "typ": 20,
          "max": 24,
          "conditions": "VIN=VCC=10V，UVLO=3V，COMP悬空",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft-start charging current (SS1)",
          "symbol": "ISS1",
          "kind": "electrical",
          "unit": "μA",
          "min": 17,
          "typ": 22,
          "max": 27,
          "conditions": "VIN=VCC=10V，UVLO=3V，COMP悬空",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft-start charging current (SS2)",
          "symbol": "ISS2",
          "kind": "electrical",
          "unit": "μA",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "VIN=VCC=10V，UVLO=3V，COMP悬空，CS2=1.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pulse frequency (FOSC)",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 200,
          "typ": 220,
          "max": 240,
          "conditions": "UVLO=3V，COMP=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum output pulse duty cycle",
          "symbol": "Duty(max)",
          "kind": "electrical",
          "unit": "%",
          "min": 66,
          "typ": 71,
          "max": 75,
          "conditions": "VIN=30V，UVLO=3V，COMP=4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dead time",
          "symbol": "tdead",
          "kind": "timing",
          "unit": "ns",
          "min": 75,
          "typ": 105,
          "max": 135,
          "conditions": "UVLO=3V，COMP=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Overlap time",
          "symbol": "toverlap",
          "kind": "timing",
          "unit": "ns",
          "min": 75,
          "typ": 105,
          "max": 135,
          "conditions": "UVLO=3V，COMP=3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "COMP input current",
          "symbol": "ICOMP",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 50,
          "max": 80,
          "conditions": "VIN=VCC=10V，UVLO=3V，COMP=4V，SS悬空",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (VIN) recommended range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 13,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC voltage recommended range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 8,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN to GND absolute maximum",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC to GND absolute maximum",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "CS1, CS2 to GND absolute maximum",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "All other pins to GND absolute maximum",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "CD5025ITS (Shenzhen CYT Semicon Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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