LM4819MMX

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  "slug": "lm4819mmx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Audio Amplifiers, VSSOP-8. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "LM4819MMX",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8",
    "pin_count": 8,
    "category": "Amplifiers/Comparators",
    "subcategory": "Audio Amplifiers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4819",
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    "distributor_links": {
      "lcsc": "C2866918",
      "digikey": "2156-LM4819MMX-ND",
      "mouser": "926-LM4819MMX"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T22:53:57Z",
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        "pn": "2156-LM4819MMX-ND",
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    "pins": [
      {
        "number": "1",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Active-high logic input that activates micro-power shutdown when driven toward VDD (VSDIH ≥ 4.0 V min at 5 V, VSDIL ≤ 1.0 V max; threshold typ 1/2 VDD); shutdown current typ 0.7 µA; must not be left floating."
      },
      {
        "number": "2",
        "name": "BYPASS",
        "type": "passive",
        "description": "Internal half-supply bias bypass pin; an external capacitor CB (≥ 1.0 µF recommended) to GND filters the reference and sets amplifier turn-on time (TON ≈ 2 s with CB = 1.0 µF)."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting signal input to the first internal amplifier; input voltage range −0.3 V to VDD + 0.3 V; AC-coupled via input capacitor Ci and input resistor Ri."
      },
      {
        "number": "4",
        "name": "-IN",
        "type": "input",
        "description": "Inverting signal input to the first internal amplifier; gain-setting feedback resistor RF and input resistor Ri connect here to set closed-loop differential gain AVD = 2(RF/Ri)."
      },
      {
        "number": "5",
        "name": "Vo2",
        "type": "output",
        "description": "Bridge output of the second (inverting) internal amplifier, 180° out of phase with Vo1; one end of the speaker load connects between Vo1 and Vo2; output offset voltage typ 5 mV, max 50 mV."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; all voltages measured with respect to this pin; supply bypassing capacitors should be placed as close as possible to the device with their ground returns here."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin; operating range 2.0 V to 5.5 V (abs max 6.0 V); quiescent current typ 1.5 mA, max 3.0 mA at 5 V; bypass with 0.1 µF and 10 µF capacitors to GND placed close to the device."
      },
      {
        "number": "8",
        "name": "Vo1",
        "type": "output",
        "description": "Bridge output of the first (non-inverting) internal amplifier; drives the load differentially with Vo2; rated 350 mW into 16 Ω or 300 mW into 8 Ω at 10% THD+N from a 5 V supply."
      }
    ],
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      "pins": {
        "total": 8,
        "described": 8,
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