VPC2845

{
  "schema_version": 1,
  "type": "component",
  "slug": "vpc2845",
  "title": "VPC2845",
  "brief": "VPSC DC-DC Converters, SOP-8. 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)",
    "vpc2845",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "VPC2845",
    "manufacturer": "VPSC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603007631728926720",
    "parts": {
      "symbol": "vpc2845.kicad_sym",
      "footprint": "vpc2845.kicad_mod",
      "model_3d": "vpc2845-hero.glb",
      "model_3d_plain": "vpc2845-etched.glb",
      "model_3d_step": "vpc2845-etched.step",
      "model_3d_step_plain": "vpc2845.step",
      "lbr": "vpc2845.lbr"
    },
    "distributor_links": {
      "lcsc": "C7470590"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T05:49:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier compensation pin: external compensation components connect here to shape the error amplifier output, and the amplifier is internally current-limited so forcing COMP to GND gives zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the internal error amplifier used for the voltage feedback loop, where the FB lead should be kept short and stray capacitance minimized for stability."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Primary-side current sense input to the PWM comparator that terminates OUT conduction, with a typical comparator threshold VCS_th of 1 V and an optional voltage ramp for voltage-mode operation."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator timing pin: timing resistor RT connects from VREF and timing capacitor CT connects to GND, giving fOSC = 1.6/(RT x CT), and RT must not be less than 5 kΩ."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Analog and signal ground, which also serves as power ground on packages without a separate PGND; keep the signal return path separate from the high-current gate-driver return path."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Push-pull gate drive output for the external MOSFET that sources and sinks up to 1 A peak and is held low while VDD is below the turn-on threshold."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Controller bias supply input, which should stay below the 28 V maximum recommended operating voltage (30 V absolute maximum) and be bypassed with a typical 0.1 µF capacitor placed directly at the pin."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "5 V reference output that requires a minimum 0.1 µF ceramic bypass capacitor placed as close to the pin as possible, with an additional bypass capacitor needed if other external loads are connected."
      }
    ],
    "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 gives one SOP8 pin table for the whole VPCx84x family. The VPC2845 is covered by it, a; The datasheet does not give electrical pin types. Types were assigned by inference: COMP as output ("
        ],
        "pages_sent": 15,
        "cost_usd": 0.0811,
        "at": "2026-10-15T05:49:15"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603007631728926720",
        "pages": 15,
        "sha256": "a3f0b7c9be78a5be",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "vpc2845.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "vpc2845-etched.step",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "34953143474da4eec9c4d621ca5a7757227e147ef52911c9b86c0fae55d22ede",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "VPSC",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a3f0b7c9be78a5be374f2b4c6f082a04b0f0b798bc262ba731c69e5bb6768669",
      "rows": [
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          "name": "输入电压 VDD (absolute maximum)",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
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        },
        {
          "name": "输入电流 VDD",
          "symbol": "VDD",
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          "unit": "mA",
          "min": null,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "输出峰值电流",
          "symbol": "OUT",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
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          "source": "datasheet"
        },
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          "name": "模拟引脚对 GND (COMP、CS、FB、RT/CT)",
          "symbol": "COMP, CS, FB, RT/CT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "基准电压对 GND",
          "symbol": "VREF",
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          "unit": "V",
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          "name": "输出引脚对 GND",
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        },
        {
          "name": "误差放大器输出吸入电流",
          "symbol": "COMP",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "",
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        },
        {
          "name": "最大工作结温",
          "symbol": "TJMAX",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "ESD 人体模式 HBM",
          "symbol": "V(ESD)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -3000,
          "typ": null,
          "max": 3000,
          "conditions": "per ESDA/JEDEC JS-001-2017",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD 机器模式 CDM",
          "symbol": "V(ESD)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "per ESDA/JEDEC JS-002-2014",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "输入电压 VDD (recommended)",
          "symbol": "VVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 28,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "FB 基准电压",
          "symbol": "VFB",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "电流采样输入",
          "symbol": "VCS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "电源电流",
          "symbol": "IVDD",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "输出平均电流",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "基准电源输出电流",
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          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -20,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "振荡器频率",
          "symbol": "fOSC",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "工作温度 (VPC284x)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "VPC284x family range, applies to VPC2845",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "基准电压 VREF",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 4.9,
          "typ": 5,
          "max": 5.1,
          "conditions": "IVREF = 1 mA, TJ = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "线性调整",
          "symbol": "ΔVREF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 20,
          "conditions": "12≤VDD≤25V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "负载调整",
          "symbol": "ΔVREF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 3,
          "max": 25,
          "conditions": "1mA≤IVREF≤20mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "温度系数",
          "symbol": "ΔVREF/ΔT",
          "kind": "temperature_coefficient",
          "unit": "mV/℃",
          "min": null,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "输出总变化",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 4.82,
          "typ": null,
          "max": 5.18,
          "conditions": "线性、负载、温度",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "长期稳定性",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 25,
          "conditions": "1000 小时，TA= 125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "短路电流",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": -30,
          "typ": -50,
          "max": -70,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "频率",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 49,
          "typ": 52,
          "max": 55,
          "conditions": "TA=25℃，RT=10kΩ，CT=3.3nF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "频率",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 225,
          "typ": 250,
          "max": 275,
          "conditions": "TA=25℃，RT=6.2kΩ，CT=1.0nF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "随电压的变化",
          "symbol": "ΔfOSC/ΔV",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 1,
          "conditions": "12V≤VDD≤25V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "随温度的变化",
          "symbol": "ΔfOSC/ΔT",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 1,
          "max": 2.5,
          "conditions": "-40℃≤TA≤125℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RT/CT 下拉电流",
          "symbol": "Idischarge",
          "kind": "electrical",
          "unit": "mA",
          "min": 7.8,
          "typ": 8.3,
          "max": 8.8,
          "conditions": "TJ = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RT/CT 下拉电流",
          "symbol": "Idischarge",
          "kind": "electrical",
          "unit": "mA",
          "min": 7.6,
          "typ": null,
          "max": 9,
          "conditions": "-40℃≤TA≤125℃",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "FB 基准电压",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 2.475,
          "typ": 2.5,
          "max": 2.525,
          "conditions": "VCOMP=2.5V, TA=25℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "输入偏置电流",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": -0.1,
          "max": -1,
          "conditions": "VFB=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "开环增益",
          "symbol": "AVOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": 95,
          "max": null,
          "conditions": "2V≤VO≤4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "单位增益带宽",
          "symbol": "BW",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.7,
          "typ": 1,
          "max": null,
          "conditions": "TJ = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "电源信噪比",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": 70,
          "max": null,
          "conditions": "12V≤VDD≤25V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "输入电流 (SNK)",
          "symbol": "ICOMP(SNK)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "VFB=2.7V，VFB=1.1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "输出电流 (SRC)",
          "symbol": "ICOMP(SRC)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": -0.5,
          "max": -1,
          "conditions": "VFB=2.3V，VFB=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VOUT 高电平",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.4,
          "typ": 6,
          "max": 6.6,
          "conditions": "VFB=2.3V，RCOMP=15kΩ到地",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VOUT 低电平",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "VFB=2.7V，RCOMP=15kΩ到 8 脚",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ACS 增益",
          "symbol": "ACS",
          "kind": "electrical",
          "unit": "V/V",
          "min": 2.85,
          "typ": 3,
          "max": 3.15,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "最大比较阈值电压",
          "symbol": "VCS_th",
          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "VFB＜2.4V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入偏置电流",
          "symbol": "ICS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": -0.1,
          "max": -2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "从 CS 到 OUT 的延迟",
          "symbol": "tD",
          "kind": "timing",
          "unit": "nS",
          "min": null,
          "typ": 30,
          "max": 65,
          "conditions": "VCS 从 0 跳变至 2V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出低电平时的内阻",
          "symbol": "RDSON(OL)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 4,
          "max": 10,
          "conditions": "ISINK=200mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出高电平时的内阻",
          "symbol": "RDSON(OH)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 8,
          "max": 16,
          "conditions": "ISOURCE=200mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD 欠压锁定时下拉电流",
          "symbol": "IOUT(SNK)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 100,
          "max": 300,
          "conditions": "VDD=6V，VOUT=1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "上升时间",
          "symbol": "tr",
          "kind": "timing",
          "unit": "nS",
          "min": null,
          "typ": 30,
          "max": 55,
          "conditions": "TJ=25℃，CL=1nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "下降时间",
          "symbol": "tf",
          "kind": "timing",
          "unit": "nS",
          "min": null,
          "typ": 20,
          "max": 40,
          "conditions": "TJ=25℃，CL=1nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "启动阈值电压 VPCx843/VPCx845",
          "symbol": "VDD(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": 7.9,
          "typ": 8.5,
          "max": 9.1,
          "conditions": "",
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