AP2953AS8PRG

{
  "schema_version": 1,
  "type": "component",
  "slug": "ap2953as8prg",
  "title": "AP2953AS8PRG",
  "brief": "Wuxi Chipown Micro electronics DC-DC Converters, ESOP-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)",
    "ap2953as8prg",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "AP2953AS8PRG",
    "manufacturer": "Wuxi Chipown Micro electronics",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881122034270208",
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      "lbr": "ap2953as8prg.lbr"
    },
    "distributor_links": {
      "lcsc": "C130334"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T20:24:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "power_in",
        "description": "Bootstrap input that drives the high-side N-MOSFET gate; a 0.01uF or larger capacitor is connected from SW to BS."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Power input for the IC and the buck converter switch, driven over 4.75V to 18V and bypassed to GND with a suitable large capacitor."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "power_out",
        "description": "Power switch output at the switching node, connected to the output LC filter; a capacitor is required from SW to BS."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground; the exposed pad is connected to pin 4."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback input sensing the output voltage through a resistor divider, with a feedback threshold of 0.925V."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "passive",
        "description": "Compensation node for the control loop, requiring an RC network to GND and sometimes an additional capacitor to GND."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Digital enable input that turns the regulator on when driven high and off when driven low; a 100kΩ pull-up to IN is needed for automatic start-up."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "input",
        "description": "Soft-start control input where a capacitor to GND sets the soft-start time (0.1µF gives 15 ms), and leaving it unconnected disables soft-start."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN AP2953AS8PRG does not appear in the datasheet ordering table. The table lists only AP2953AS8; The datasheet never names ESOP-8. The only 8-pin package it gives is SOP8-PP, with an exposed pad ti",
          "exposed pad 9 added from the footprint"
        ],
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        "cost_usd": 0.0517,
        "at": "2026-10-09T20:22:47"
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      "datasheet": {
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        "pages": 8,
        "sha256": "a374357607b1121e",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Wuxi Chipown Micro electronics",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
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    "characteristics": {
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          "name": "Feedback voltage",
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        {
          "name": "Oscillator frequency",
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          "unit": "KHz",
          "min": 310,
          "typ": 370,
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        {
          "name": "Upper switch leakage current",
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          "name": "Shutdown supply current",
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          "name": "Supply current",
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          "kind": "electrical",
          "unit": "mA",
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          "conditions": "VEN =2.0V, VFB = 1.0V",
          "source_page": 3,
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        {
          "name": "Feedback overvoltage threshold",
          "symbol": "VFB_OVP",
          "kind": "electrical",
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          "typ": 1.1,
          "max": null,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Error amplifier voltage gain",
          "symbol": "AVEA",
          "kind": "electrical",
          "unit": "V/V",
          "min": null,
          "typ": 480,
          "max": null,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "Error amplifier transconductance",
          "symbol": "GEA",
          "kind": "electrical",
          "unit": "µA/V",
          "min": null,
          "typ": 800,
          "max": null,
          "conditions": "ΔIC = ±10μA",
          "source_page": 3,
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        },
        {
          "name": "Upper switch on-resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 100,
          "max": null,
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        {
          "name": "Lower switch on-resistance",
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          "kind": "electrical",
          "unit": "mΩ",
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          "name": "Lower switch current limit",
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          "kind": "electrical",
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          "min": null,
          "typ": 0.9,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "COMP pin current sense transconductance",
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          "kind": "electrical",
          "unit": "A/V",
          "min": null,
          "typ": 5.2,
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          "name": "Short-circuit frequency",
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          "conditions": "VFB = 0V",
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          "name": "Maximum duty cycle",
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          "unit": "%",
          "min": null,
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          "max": null,
          "conditions": "VFB = 1.0V",
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        {
          "name": "Minimum on-time",
          "symbol": "tON(MIN)",
          "kind": "electrical",
          "unit": "nS",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "",
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        {
          "name": "EN turn-off threshold hysteresis",
          "symbol": "VEN",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
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        {
          "name": "EN lockout hysteresis",
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          "min": null,
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          "name": "Undervoltage lockout hysteresis",
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          "name": "Soft-start current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 6,
          "max": null,
          "conditions": "VSS = 0V",
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        {
          "name": "Soft-start time",
          "symbol": "tSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "CSS = 0.1μF",
          "source_page": 4,
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        {
          "name": "Thermal shutdown temperature",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
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        {
          "name": "Input voltage (VIN) absolute maximum",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
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        {
          "name": "Switch voltage (VSW)",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1,
          "typ": null,
          "max": 0.3,
          "conditions": "Printed as -1V ~ VIN + 0.3V; max is relative to VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Bootstrap voltage (VBS)",
          "symbol": "VBS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "Printed as VSW-0.3V ~ VSW + 6V; referenced to VSW",
          "source_page": 3,
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        {
          "name": "EN voltage (VEN)",
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          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "COMP voltage (VCOMP)",
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          "name": "Feedback voltage (VFB)",
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        {
          "name": "Junction temperature",
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          "unit": "℃",
          "min": null,
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        {
          "name": "Lead temperature (soldering)",
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          "min": null,
          "typ": null,
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        {
          "name": "Storage temperature",
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          "unit": "℃",
          "min": -65,
          "typ": null,
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          "conditions": "",
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        {
          "name": "Input voltage (VIN) recommended",
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          "unit": "V",
          "min": 4.75,
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          "min": 0.925,
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          "name": "Junction-to-ambient thermal resistance",
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          "kind": "thermal",
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          "min": null,
          "typ": 50,
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