VPC2187B

{
  "schema_version": 1,
  "type": "component",
  "slug": "vpc2187b",
  "title": "VPC2187B",
  "brief": "VPSC DC-DC Converters, MSOP-10. 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)",
    "vpc2187b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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": [
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        "file": "vpc2187b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 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": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "b7913b7aee6baea5a23c15b0732572e57797d65300694ab6f3b435fab6266cef",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "VPSC",
      "Package": "MSOP-10",
      "Category": "Power Management (PMIC)",
      "Pins": "10"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "602d834347f7366b",
      "rows": [
        {
          "name": "VIN 输入电压 (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "工作结温 (recommended)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN 对 GND 的电压范围 (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 110,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD 和 GATE 对 GND 的电压范围 (absolute maximum)",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "CS 对 GND 电压范围 (absolute maximum)",
          "symbol": "CS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "所有其它引脚对 GND 的电压范围 (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.6,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "最大工作结温 TJMAX (absolute maximum)",
          "symbol": "TJMAX",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN 钳位持续电流 (absolute maximum)",
          "symbol": "IVIN(CLAMP)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB 电流 (absolute maximum)",
          "symbol": "IFB",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -2.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN 钳位电压 ESD clamp",
          "symbol": "VIN(clamp)",
          "kind": "electrical",
          "unit": "V",
          "min": 110,
          "typ": 118,
          "max": 128,
          "conditions": "IVIN=1mA，VDD=12V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "正常工作电流 IQ",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": 2,
          "typ": null,
          "max": 3,
          "conditions": "GATE 悬空，COM接3.3k到GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN 供电能力 IVIN(SRC)",
          "symbol": "IVIN(SRC)",
          "kind": "electrical",
          "unit": "mA",
          "min": 15,
          "typ": null,
          "max": 20,
          "conditions": "VIN=12V，VDD=6.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD 启动电压 VDD(ON) VPC2187B",
          "symbol": "VDD(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": 3.7,
          "max": 3.9,
          "conditions": "VDD 电压上升",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD 锁定电压 VDD(OFF) VPC2187B",
          "symbol": "VDD(OFF)",
          "kind": "electrical",
          "unit": "V",
          "min": 3.2,
          "typ": 3.4,
          "max": 3.6,
          "conditions": "VDD 电压下降",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN 到 VDD 的稳压值 VDD(REG)",
          "symbol": "VDD(REG)",
          "kind": "electrical",
          "unit": "V",
          "min": 8.1,
          "typ": 8.7,
          "max": 9.3,
          "conditions": "VDD 和 GATE 不带负载",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD 过压保护阈值电压 VDD(OVP)",
          "symbol": "VDD(OVP)",
          "kind": "electrical",
          "unit": "V",
          "min": 17.5,
          "typ": 18.6,
          "max": 19.7,
          "conditions": "VDD 电压上升",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD ESD 钳位电压 VDD(clamp)",
          "symbol": "VDD(clamp)",
          "kind": "electrical",
          "unit": "V",
          "min": 23,
          "typ": null,
          "max": 27,
          "conditions": "IVDD（SNK）=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "限流阈值电压 VCS(LIM) VPC2187B",
          "symbol": "VCS(LIM)",
          "kind": "electrical",
          "unit": "mV",
          "min": 140,
          "typ": 156,
          "max": 172,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "最小阈值电压 VCS(MIN) PSR 反馈模式 VPC2187B",
          "symbol": "VCS(MIN)",
          "kind": "electrical",
          "unit": "mV",
          "min": 26,
          "typ": 31,
          "max": 36,
          "conditions": "PSR 反馈模式",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "短路保护阈值 VSCP(LIM) VPC2187B",
          "symbol": "VSCP(LIM)",
          "kind": "electrical",
          "unit": "mV",
          "min": 225,
          "typ": 250,
          "max": 275,
          "conditions": "VCOM 超过 VCOM(OLP)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "软启动引脚开路电压 VSS(OPEN)",
          "symbol": "VSS(OPEN)",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 5.4,
          "max": 5.8,
          "conditions": "CLK 悬空 (as printed)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "内置软启动时间 tSS(IN)",
          "symbol": "tSS(IN)",
          "kind": "timing",
          "unit": "mS",
          "min": 0.8,
          "typ": 1.2,
          "max": 1.6,
          "conditions": "SS 悬空",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "外置软启动电流 ISS",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": 22,
          "typ": 28,
          "max": 34,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RT=44.2kΩ 时的频率 FOSC1",
          "symbol": "FOSC1",
          "kind": "electrical",
          "unit": "kHz",
          "min": 135,
          "typ": 150,
          "max": 165,
          "conditions": "RT=44.2kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RT=22kΩ 时的频率 FOSC2",
          "symbol": "FOSC2",
          "kind": "electrical",
          "unit": "kHz",
          "min": 270,
          "typ": 300,
          "max": 330,
          "conditions": "RT=22kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RT=13.3kΩ 时的频率 FOSC3",
          "symbol": "FOSC3",
          "kind": "electrical",
          "unit": "kHz",
          "min": 440,
          "typ": 500,
          "max": 560,
          "conditions": "RT=13.3kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RT 引脚基准电压 VRT",
          "symbol": "VRT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.92,
          "typ": 2.02,
          "max": 2.12,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "欠压保护比较电压 VREF(UVP)",
          "symbol": "VREF(UVP)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": 2,
          "max": 2.1,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVP 引脚被钳位电压 VUVP(CLAMP)",
          "symbol": "VUVP(CLAMP)",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 5.5,
          "max": 6,
          "conditions": "IUVP=0.6mA 注入 UVP 引脚",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "保护后抽取的下拉电流 IUVP(SNK)",
          "symbol": "IUVP(SNK)",
          "kind": "electrical",
          "unit": "uA",
          "min": 3.4,
          "typ": 4.4,
          "max": 5.4,
          "conditions": "VUVP=1.8V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EA 正端口基准电压 VREF(REG)",
          "symbol": "VREF(REG)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.975,
          "typ": 2,
          "max": 2.025,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "最大占空比 DMAX",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": 75,
          "typ": 80,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "COM 引脚开路电压 VCOM(OPEN)",
          "symbol": "VCOM(OPEN)",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 5.4,
          "max": 5.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "COM 脚短路电流 ICOM",
          "symbol": "ICOM",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.6,
          "typ": 1.1,
          "max": 1.5,
          "conditions": "VCOM=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "GATE 高电平压差 VGATEH (50mA 负载)",
          "symbol": "VGATEH",
          "kind": "electrical",
          "unit": "mV",
          "min": 185,
          "typ": null,
          "max": 400,
          "conditions": "IGATE=50mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "GATE 低电平电压 VGATEH (100mA 上拉)",
          "symbol": "VGATEH",
          "kind": "electrical",
          "unit": "mV",
          "min": 170,
          "typ": null,
          "max": 350,
          "conditions": "IGATE=-100mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "过温保护阈值 TSHDN",
          "symbol": "TSHDN",
          "kind": "thermal",
          "unit": "℃",
          "min": 148,
          "typ": 163,
          "max": 178,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "使能关断时输入电流 IVIN(SHDN)",
          "symbol": "IVIN(SHDN)",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VUVP=0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "输入欠压未关断时输入电流 IVIN(UVP)",
          "symbol": "IVIN(UVP)",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 294,
          "max": null,
          "conditions": "VUVP=1.8V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN 到 VDD 的跌落电压 VDD(DO)",
          "symbol": "VDD(DO)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "IVDD(LOAD)=5mA,VIN=8V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "防倒灌二极管耐压 VBV(DIODE)",
          "symbol": "VBV(DIODE)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 37,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD 过压时吸收电流 IDDSNK(OVP)",
          "symbol": "IDDSNK(OVP)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 6.6,
          "max": null,
          "conditions": "VDD= VDD（OVP）",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "电流限制比较延时 tCS(DLY)",
          "symbol": "tCS(DLY)",
          "kind": "timing",
          "unit": "nS",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "CS 从 0 到 0.6V 开始计算，到 GATE 变为低电位",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PWM 比较消隐时间 tLEB(CS)",
          "symbol": "tLEB(CS)",
          "kind": "timing",
          "unit": "nS",
          "min": null,
          "typ": 95,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "增加斜坡补偿起始占空比 D",
          "symbol": "D",
          "kind": "electrical",
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