VPC2187B

{
  "slug": "vpc2187b",
  "version": "0.1.0",
  "type": "component",
  "description": "VPSC DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "vpc2187b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "vpc2187b.kicad_sym",
    "vpc2187b.kicad_mod",
    "vpc2187b.glb",
    "vpc2187b.step",
    "vpc2187b.lbr",
    "docs/hero.png",
    "docs/vpc2187b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "vpc2187b-hero.glb",
    "vpc2187b-hero.overlay.json"
  ],
  "component": {
    "mpn": "VPC2187B",
    "manufacturer": "VPSC",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902905094283264",
    "parts": {
      "symbol": "vpc2187b.kicad_sym",
      "footprint": "vpc2187b.kicad_mod",
      "model_3d": "vpc2187b-hero.glb",
      "model_3d_plain": "vpc2187b.glb",
      "model_3d_step": "vpc2187b-etched.step",
      "model_3d_step_plain": "vpc2187b.step",
      "lbr": "vpc2187b.lbr"
    },
    "distributor_links": {
      "lcsc": "C5189124"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T07:08:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COM",
        "type": "input",
        "description": "Optocoupler feedback pin in SSR mode that sets peak current and switching frequency, with internal RC compensation for direct optocoupler connection; open-circuit voltage is 5.0-5.8V and the open-loop protection threshold is 4.6V (VDD-0.8V when VDD is below 5.4V)."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "High-voltage startup input that feeds the internal high-voltage LDO to VDD; absolute maximum VIN-to-GND is 110V and recommended VIN is 4-100V, with an ESD clamp of about 118V."
      },
      {
        "number": "3",
        "name": "UVP",
        "type": "input",
        "description": "Input undervoltage protection pin with a 2V comparison threshold; an external pull-up sets the hysteresis, the pin sinks 4.4uA when protection is active, and it also enables or disables the internal LDO (enable above 0.9V, disable below 0.6V)."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply pin regulated to 8.7V (up to 20mA) by the VIN LDO, clamped at 18.6V, and entering self-recovering protection when clamp sink current exceeds 6.6mA; absolute maximum is 25V."
      },
      {
        "number": "5",
        "name": "GATE",
        "type": "output",
        "description": "Gate drive output for the external power MOSFET, with peak source current of 0.8A and peak sink current of 1.5A at VGATE=7.5V."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Power reference ground pin for the chip."
      },
      {
        "number": "7",
        "name": "CS",
        "type": "input",
        "description": "Current-sense input with a maximum current-limit threshold of 156mV for VPC2187B (500mV for VPC2188B), and short-circuit protection that latches into self-recovering protection when CS exceeds 1.6 times the maximum threshold."
      },
      {
        "number": "8",
        "name": "RT",
        "type": "passive",
        "description": "Frequency programming pin where an external resistor to GND sets the oscillator frequency (for example 44.2kΩ gives 135-165kHz and 22kΩ gives 270-330kHz); RT reference voltage is 1.92-2.12V."
      },
      {
        "number": "9",
        "name": "SS",
        "type": "passive",
        "description": "External soft-start pin where a capacitor to GND sets the soft-start time, charged by a 22-34uA source; if left open, the internal soft-start time is 0.8-1.6mS (1.2mS typical)."
      },
      {
        "number": "10",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback pin for PSR (auxiliary winding divider) or resistor-divider direct sampling, automatically selected when GATE is high and FB sees a negative voltage or COM is tied to GND; absolute maximum FB current is -2.5mA."
      }
    ],
    "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 datasheet pin table (page 2) is shared by VPC2187B and VPC2188B; the pinout is the same for both; The datasheet gives no explicit electrical type for each pin; the KiCad ERC types (input, output, pa; The datasheet text is in Chinese; the pin descriptions here are English engineering summaries of the"
        ],
        "pages_sent": 15,
        "cost_usd": 0.079,
        "at": "2026-10-09T07:04:28"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902905094283264",
        "pages": 15,
        "sha256": "602d834347f7366b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "vpc2187b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "vpc2187b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b7913b7aee6baea5a23c15b0732572e57797d65300694ab6f3b435fab6266cef",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}