LM51561QDSSRQ1

{
  "slug": "lm51561qdssrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, WSON-12-EP(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm51561qdssrq1",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "LM51561QDSSRQ1",
    "manufacturer": "Texas Instruments",
    "package": "WSON-12-EP(2x3)",
    "pin_count": 13,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm5156-q1",
    "parts": {
      "symbol": "lm51561qdssrq1.kicad_sym",
      "footprint": "lm51561qdssrq1.kicad_mod",
      "model_3d": "lm51561qdssrq1-etched.glb",
      "model_3d_plain": "lm51561qdssrq1.glb",
      "model_3d_step": "lm51561qdssrq1-etched.step",
      "model_3d_step_plain": "lm51561qdssrq1.step",
      "lbr": "lm51561qdssrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2864497",
      "digikey": "296-LM51561QDSSRQ1TR-ND",
      "mouser": "595-LM51561QDSSRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-01T17:55:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-LM51561QDSSRQ1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM51561QDSSRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BIAS",
        "type": "power_in",
        "description": "Supply voltage input to internal VCC regulator; supports 2.97V to 60V operating range with 65V absolute maximum for automotive load dump transients."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_in",
        "description": "Regulated output voltage from internal VCC regulator and supply input for MOSFET gate driver; 6.85V typical with absolute maximum 18V or VBIAS+0.3V."
      },
      {
        "number": "3",
        "name": "GATE",
        "type": "output",
        "description": "N-channel MOSFET gate drive output capable of sourcing and sinking 1.5A peak current with output swing from 0.15V low state to VCC minus 0.25V high state."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return pin; connect directly to sense resistor ground through low-inductance wide and short path and to ground copper plane."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Low-side current sense input; 100mV\u00b17% peak current limit threshold with 0.3V DC and -1V for 50ns transient absolute maximum ratings."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Transconductance error amplifier output with 10M\u03a9 output impedance and internal voltage clamps at 2.5-2.8V rising and 1-1.1V falling."
      },
      {
        "number": "7",
        "name": "DITHOFF",
        "type": "input",
        "description": "Spread spectrum dithering selection input; internal dithering enabled when voltage is less than 1.0V or connected to GND, disabled when greater than 2.0V or connected to VCC."
      },
      {
        "number": "8",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of internal error amplifier; 1V\u00b11% internal reference with 4.0V absolute maximum rating."
      },
      {
        "number": "9",
        "name": "SS",
        "type": "input",
        "description": "Soft-start capacitor programming pin; charged by 10\u00b5A internal current source to ramp error amplifier reference during power-on soft start sequence."
      },
      {
        "number": "10",
        "name": "RT",
        "type": "input",
        "description": "Switching frequency programming pin; regulated to 0.5V by internal regulator with programmable frequency range from 100kHz to 2.2MHz."
      },
      {
        "number": "11",
        "name": "PGOOD",
        "type": "output",
        "description": "Power-good indicator open-drain output; pulls low when FB falls below undervoltage threshold with 18V absolute maximum and 1mA maximum sink capability."
      },
      {
        "number": "12",
        "name": "UVLO/SYNC/EN",
        "type": "input",
        "description": "Undervoltage lockout and external clock synchronization input; 1.5V typical rising threshold and 1.45V typical falling threshold with 50mV hysteresis."
      },
      {
        "number": "13",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 50,
        "cost_usd": 0.3155,
        "at": "2026-10-01T17:55:04"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm5156-q1",
        "pages": 50,
        "sha256": "2f02152f7d3a5e51",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 13,
        "described": 13,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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}