RY3408

{
  "schema_version": 1,
  "type": "component",
  "slug": "ry3408",
  "title": "RY3408",
  "brief": "RYCHIP DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ry3408"
  ],
  "component": {
    "mpn": "RY3408",
    "manufacturer": "RYCHIP",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/16bf9781b68750c48490ed968e25d332.pdf",
    "parts": {
      "symbol": "ry3408.kicad_sym",
      "footprint": "ry3408.kicad_mod",
      "model_3d": "ry3408-etched.glb",
      "model_3d_plain": "ry3408.glb",
      "model_3d_step": "ry3408-etched.step",
      "model_3d_step_plain": "ry3408.step",
      "lbr": "ry3408.lbr"
    },
    "distributor_links": {
      "lcsc": "C370750"
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Chip enable input. Drive above 1.5V (typ. rising threshold 1.15V, hysteresis 140mV) to turn the regulator on; drive below 0.3V to shut it down (shutdown current <1µA). Must not be left floating. Absolute max 6.0V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return. Connect to a large copper area to improve thermal performance and provide a low-impedance return for the input capacitor and internal low-side NMOS."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Switch-node output; drains of the internal P-channel and N-channel power MOSFETs. Connect to the external inductor. Peak SW sink/source current is rated to 3A; absolute max voltage -0.3V to (VIN+0.3V)."
      },
      {
        "number": "4",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply input, 2.5V to 5.5V operating (absolute max 6.0V). Must be closely decoupled to GND with a 10µF or greater ceramic capacitor placed near the pin."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Output-voltage feedback input. Connect to the external resistor divider tap; the regulator servos FB to the internal 0.600V reference (VOUT = 0.6V x (R1+R2)/R2). Absolute max 6.0V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/16bf9781b68750c48490ed968e25d332.pdf",
        "pages": 9,
        "sha256": "dff34b6a65435b27",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
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        "role": "plain",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "RYCHIP",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "dff34b6a65435b27",
      "rows": [
        {
          "name": "Input Voltage Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
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        },
        {
          "name": "UVLO Threshold",
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          "min": null,
          "typ": 2.4,
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        {
          "name": "Input DC Supply Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 150,
          "max": 300,
          "conditions": "FB = 90%, Iload=0mA",
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          "name": "Input DC Supply Current",
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          "kind": "electrical",
          "unit": "µA",
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          "typ": 40,
          "max": 70,
          "conditions": "FB= 105%, Iload=0mA",
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        },
        {
          "name": "Input DC Supply Current (shutdown)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VEN = 0V, VIN=4.2V",
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        },
        {
          "name": "Regulated Feedback Voltage",
          "symbol": "",
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          "typ": 0.6,
          "max": 0.612,
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        },
        {
          "name": "Reference Voltage Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.04,
          "max": 0.4,
          "conditions": "Vin = 2.5V to 5.5V",
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        },
        {
          "name": "Output Voltage Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
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          "max": 0.4,
          "conditions": "VIN = 2.5V to 5.5V",
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        },
        {
          "name": "Output Voltage Load Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.5,
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        },
        {
          "name": "Oscillation Frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1.5,
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        },
        {
          "name": "On Resistance of PMOS",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "ISW=100mA",
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        },
        {
          "name": "ON Resistance of NMOS",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "ISW=-100mA",
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        },
        {
          "name": "Peak Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "VIN= 3.6V, FB=90%",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN up Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.05,
          "typ": 1.15,
          "max": 1.25,
          "conditions": "VEN-Rising",
          "source_page": 3,
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        },
        {
          "name": "EN Threshold Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 140,
          "max": null,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "EN Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": 0.01,
          "max": 1,
          "conditions": "",
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        },
        {
          "name": "SW Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": 0.01,
          "max": 1,
          "conditions": "VEN=0V, VIN=Vsw=5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soft Start",
          "symbol": "",
          "kind": "timing",
          "unit": "mS",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Hysteresis",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "Input Supply Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "EN, FB Voltages",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
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        {
          "name": "SW Voltage",
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          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Peak SW Sink and Source Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance (θJA)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "ESD (Human Body Made) HMB",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
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        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Lead Temperature (Soldering, 10s)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10s soldering",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Thermal Resistance (θJC) SOT23-5",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "ESD (Machine Made) MM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
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          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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      ]
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  "updated_at": "2026-09-25T05:23:40.613Z"
}