SPX3819M5-L-3-3

{
  "schema_version": 1,
  "type": "component",
  "slug": "spx3819m5-l-3-3",
  "title": "SPX3819M5-L-3-3",
  "brief": "MaxLinear Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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",
    "spx3819m5-l-3-3"
  ],
  "component": {
    "mpn": "SPX3819M5-L-3-3",
    "manufacturer": "MaxLinear",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "docs/spx3819m5-l-3-3-datasheet.pdf",
    "parts": {
      "symbol": "spx3819m5-l-3-3.kicad_sym",
      "footprint": "spx3819m5-l-3-3.kicad_mod",
      "model_3d": "spx3819m5-l-3-3-etched.glb",
      "model_3d_plain": "spx3819m5-l-3-3.glb",
      "model_3d_step": "spx3819m5-l-3-3-etched.step",
      "model_3d_step_plain": "spx3819m5-l-3-3.step",
      "lbr": "spx3819m5-l-3-3.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input. Operating range 2.5V to 16V (absolute max -20V to +20V). Should be decoupled with a 1µF ceramic capacitor to GND near the pin. Powers the regulator pass element and internal reference."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the regulator. Also the reference for output feedback and enable thresholds. Ground pin current is typically 90µA at 100µA load and ~6.5mA at 500mA load."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input, CMOS-compatible. Logic high (VIH ≥ 2.0V) enables the regulator; logic low (VIL ≤ 0.4V) or open shuts it down (near-zero quiescent current). Absolute-max input range -20V to +20V; recommended 0V to VIN. May be tied directly to VIN for always-on operation."
      },
      {
        "number": "4",
        "name": "BYP",
        "type": "passive",
        "description": "Reference bypass pin (fixed-voltage variants such as this -3-3 option). Connect an optional 1nF-10nF ceramic capacitor from BYP to GND to reduce output noise to ~40µV RMS (10Hz-100kHz). Leave floating if low-noise operation is not required. On adjustable variants this pin functions as ADJ (feedback from an external divider); the -3-3 3.3V fixed part uses it as BYP only."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulator output, 3.3V fixed, up to 500mA. Requires a minimum 1µF ceramic output capacitor to GND for stability. Dropout is typically 340mV at 500mA."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "docs/spx3819m5-l-3-3-datasheet.pdf",
        "pages": 12,
        "sha256": "f2808357a4016e81",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "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)"
      },
      {
        "file": "spx3819m5-l-3-3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "sha256": "6a675720c75029c285070bc8da272f3b38ed7d6e072c574a9f6ec8e834997225",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "MaxLinear",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "spx3819m5-l-3-3"
  ],
  "discovery_pitch": "SPX3819M5-L-3-3 (MaxLinear) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "spx3819m5-l-3-3.glb",
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  "variants": [
    {
      "mpn": "SPX3819M5-L-3-3",
      "kind": "packaging"
    },
    {
      "mpn": "SPX3819M5-L-3-3/TR",
      "kind": "packaging"
    },
    {
      "mpn": "SPX3819R2-L",
      "kind": "unknown"
    },
    {
      "mpn": "SPX3819R2-L-1-2",
      "kind": "different-part"
    },
    {
      "mpn": "SPX3819R2-L-1-8",
      "kind": "different-part"
    },
    {
      "mpn": "SPX3819S-L",
      "kind": "unknown"
    },
    {
      "mpn": "SPX3819S-L-1-2",
      "kind": "different-part"
    },
    {
      "mpn": "SPX3819S-L-1-5",
      "kind": "different-part"
    },
    {
      "mpn": "SPX3819S-L-1-8",
      "kind": "different-part"
    },
    {
      "mpn": "SPX3819S-L-2-5",
      "kind": "different-part"
    },
    {
      "mpn": "SPX3819S-L-3-3",
      "kind": "unknown"
    },
    {
      "mpn": "SPX3819S-L-5-0",
      "kind": "different-part"
    }
  ],
  "updated_at": "2026-09-25T08:03:33.519Z"
}