LM2842YM6-ADJ

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2842ym6-adj",
  "title": "LM2842YM6-ADJ",
  "brief": "HGSEMI DC-DC Converters, SOT-23-6. 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)",
    "lm2842ym6-adj",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM2842YM6-ADJ",
    "manufacturer": "HGSEMI",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603383979907571712",
    "parts": {
      "symbol": "lm2842ym6-adj.kicad_sym",
      "footprint": "lm2842ym6-adj.kicad_mod",
      "model_3d": "lm2842ym6-adj-hero.glb",
      "model_3d_plain": "lm2842ym6-adj-etched.glb",
      "model_3d_step": "lm2842ym6-adj-etched.step",
      "model_3d_step_plain": "lm2842ym6-adj.step",
      "lbr": "lm2842ym6-adj.lbr"
    },
    "distributor_links": {
      "lcsc": "C30170092"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T16:08:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "power_out",
        "description": "Bootstrap pin supplying the positive rail of the internal floating high-side MOSFET driver; a bypass capacitor is connected between BST and SW, and the datasheet limits BST-to-SW to -0.3 V to 6.0 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, to be connected as close as possible to the output capacitor and kept away from the high-current switching path."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the error amplifier, compared against the internal +0.8 V reference through an external resistor divider from VOUT to GND; the reference is 0.794 V typical (0.778 V to 0.810 V)."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable input, active high with a 1.6 V minimum threshold and 0.6 V hysteresis; pulling it below the threshold shuts the chip down, and leaving it floating shuts the chip down (EN is internally pulled to ground); EN is clamped at 7.5 V."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input supplying all internal control circuitry and the power switch, with a recommended operating range of 5 V to 40 V and an absolute maximum of -0.3 V to 43 V; a decoupling capacitor to GND is required to reduce switching spikes."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "High-side switch output that drives the inductor; a low-VF Schottky diode to GND should be placed close to this pin to reduce switching spikes, with the switch voltage limited to -0.3 V to VIN(max)+0.3 V."
      }
    ],
    "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: Pin-configuration figure on page 3 did not survive text extraction; pin numbers and names were taken; Pin types are inferred under KiCad ERC classes from the functional descriptions: BST is typed power_; Datasheet is in Chinese; pin descriptions are translated into English from the pin-function table on"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0457,
        "at": "2026-10-17T16:06:16"
      },
      "datasheet": {
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        "pages": 12,
        "sha256": "ce9d68e77800fd77",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ce9d68e77800fd77c6ad0f24f5de3d2f71bbf7d88e1ca776943862d720ed64a8",
      "rows": [
        {
          "name": "Feedback voltage",
          "symbol": "Vfb",
          "kind": "electrical",
          "unit": "V",
          "min": 0.778,
          "typ": 0.794,
          "max": 0.81,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Oscillator frequency (LM2842Y version)",
          "symbol": "Fosc",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.95,
          "typ": 1.25,
          "max": 1.5,
          "conditions": "LM2842Y version",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input undervoltage lockout threshold",
          "symbol": "Vin(UVLO)",
          "kind": "electrical",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 4.2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Switch leakage current",
          "symbol": "Iswleak",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "Ven=0V, Vsw=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown supply current",
          "symbol": "Isd",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 3,
          "max": 15,
          "conditions": "Ven<0.3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN high-level threshold",
          "symbol": "Venh",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (VIN)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SW terminal voltage",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "Printed as 'Up to 40V'",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VIN (absolute)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 43,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch voltage VSW (absolute)",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as VIN(MAX)+0.3V; not a numeric value",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "BST to SW voltage",
          "symbol": "VBST-SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Other pins voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Continuous power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.57,
          "conditions": "TA=+25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead soldering temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 245,
          "conditions": "10 s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "SOT-23-6",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "SOT-23-6",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch on-resistance",
          "symbol": "Rsw",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "Vbst-Vsw=5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "Ilim",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Transconductance COMP to SENSE",
          "symbol": "Gcs",
          "kind": "electrical",
          "unit": "A/V",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum operating voltage",
          "symbol": "Vin min",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis",
          "symbol": "Vin(UVLO)hys",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soft-start time",
          "symbol": "Tss",
          "kind": "timing",
          "unit": "msec",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "FB from 0 to 1.8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum switch on-time",
          "symbol": "Ton min",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Isq",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "Vfb=0.9V, no load",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown temperature",
          "symbol": "Temp",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN hysteresis",
          "symbol": "En hys",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN clamp voltage",
          "symbol": "En Vclamp",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 7.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "LM2842YM6-ADJ (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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