RT2853BHGQW

{
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  "slug": "rt2853bhgqw",
  "title": "RT2853BHGQW",
  "brief": "Richtek Tech DC-DC Converters, QFN-16-EP(3x3). 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)",
    "rt2853bhgqw",
    "factory-2.0.0",
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  "component": {
    "mpn": "RT2853BHGQW",
    "manufacturer": "Richtek Tech",
    "package": "QFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603026764826492928",
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      "lbr": "rt2853bhgqw.lbr"
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    "distributor_links": {
      "lcsc": "C3034213"
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    "distributor_check": {
      "checked_at": "2026-10-18T23:04:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Feedback input voltage: connect to the midpoint of the external feedback divider to sense VOUT, placed within 5mm of the FB pin, with the IC regulating VFB at 0.765V typical."
      },
      {
        "number": "2",
        "name": "VREG5",
        "type": "power_out",
        "description": "Internal regulator output, which needs a 1µF capacitor to GND to stabilize the output voltage."
      },
      {
        "number": "3",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start control: an external capacitor between this pin and GND sets the soft-start time."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "5",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power-good output that is pulled to PGND whenever VFB is less than 90% of its regulation threshold (typical)."
      },
      {
        "number": "6",
        "name": "EN",
        "type": "input",
        "description": "Enable control input: logic-high enables the converter, while logic-low forces shutdown and reduces supply current to less than 10µA; logic thresholds are 2V minimum high and 0.4V maximum low."
      },
      {
        "number": "7",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground connected to the source of the internal N-channel synchronous rectifier and to the other power-ground nodes; it should be well soldered to the input and output capacitors and a large PCB area."
      },
      {
        "number": "8",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground connected to the source of the internal N-channel synchronous rectifier and to the other power-ground nodes; it should be well soldered to the input and output capacitors and a large PCB area."
      },
      {
        "number": "9",
        "name": "SW",
        "type": "output",
        "description": "Switching node, the source of the internal high-side N-channel switch and drain of the synchronous rectifier; keep the trace to the inductor short and its area minimal to reduce EMI."
      },
      {
        "number": "10",
        "name": "SW",
        "type": "output",
        "description": "Switching node, the source of the internal high-side N-channel switch and drain of the synchronous rectifier; keep the trace to the inductor short and its area minimal to reduce EMI."
      },
      {
        "number": "11",
        "name": "SW",
        "type": "output",
        "description": "Switching node, the source of the internal high-side N-channel switch and drain of the synchronous rectifier; keep the trace to the inductor short and its area minimal to reduce EMI."
      },
      {
        "number": "12",
        "name": "BOOT",
        "type": "passive",
        "description": "Bootstrap supply for the high-side gate driver; connect a 0.1µF capacitor between BOOT and SW."
      },
      {
        "number": "13",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input with an input voltage range of 4.5V to 18V; must be bypassed with a suitably large (10µF x 2) ceramic capacitor."
      },
      {
        "number": "14",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input with an input voltage range of 4.5V to 18V; must be bypassed with a suitably large (10µF x 2) ceramic capacitor."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply input for the internal linear regulator that powers the IC; connect to the input voltage and bypass to ground with a 0.1µF ceramic capacitor."
      },
      {
        "number": "16",
        "name": "VS",
        "type": "power_in",
        "description": "Optional output-voltage discharge connection: an open-drain output that connects to ground when the device is disabled, and should be tied to VOUT if discharge is wanted."
      },
      {
        "number": "17",
        "name": "PGND",
        "type": "power_in",
        "description": "Exposed thermal pad, listed as PGND; it should be well soldered to the input and output capacitors and a large PCB area for good power dissipation."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "QFN-16-EP(3x3)",
      "Category": "Power Management (PMIC)",
      "Pins": "17"
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        {
          "name": "VS Discharge Resistance",
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          "max": 100,
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          "name": "VREG5 Output Voltage",
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          "unit": "V",
          "min": 4.8,
          "typ": 5.1,
          "max": 5.4,
          "conditions": "TA = 25C, 6V ≤ VIN ≤ 18V, 0 < IVREG5 ≤ 5mA",
          "source_page": 3,
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        {
          "name": "VREG5 Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "6V ≤ VIN ≤ 18V, IVREG5 = 5mA",
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        {
          "name": "VREG5 Load Regulation",
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          "max": 100,
          "conditions": "0 ≤ IVREG5 ≤ 5mA",
          "source_page": 3,
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        {
          "name": "Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 4,
          "typ": 4.5,
          "max": 6,
          "conditions": "LSW = 1.4µH",
          "source_page": 4,
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        {
          "name": "Minimum Off-Time",
          "symbol": "tOFF(MIN)",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 260,
          "max": 310,
          "conditions": "VFB = 0.7V, TA = 25C",
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        {
          "name": "SS Charge Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 1.4,
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          "name": "SS Discharge Current",
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          "name": "UVLO Threshold Wake Up (VREG5)",
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          "name": "UVLO Hysteresis",
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          "min": 0.13,
          "typ": 0.35,
          "max": 0.47,
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          "name": "PGOOD Threshold (VFB Rising)",
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          "min": 85,
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          "name": "PGOOD Sink Current",
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          "typ": 5,
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        {
          "name": "OVP Trip Threshold",
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          "unit": "%",
          "min": 115,
          "typ": 120,
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          "name": "UVP Trip Threshold",
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          "min": 65,
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          "name": "Supply Voltage, VIN, VCC",
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          "name": "Switch Voltage, SW (<10ns)",
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          "name": "BOOT to SW",
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          "name": "VREG5 to VIN or VCC",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -18,
          "typ": null,
          "max": 0.3,
          "conditions": "",
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        {
          "name": "Other Pins Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 21,
          "conditions": "",
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        {
          "name": "Power Dissipation",
          "symbol": "PD",
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          "unit": "W",
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          "conditions": "TA = 25°C, WQFN-16L 3x3",
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          "name": "Junction Temperature Range (absolute maximum)",
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        {
          "name": "Lead Temperature (Soldering, 10 sec)",
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          "name": "Storage Temperature Range",
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          "name": "Junction Temperature Range (recommended)",
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          "name": "Package Thermal Resistance, Junction to Case",
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