LM25005MHX

{
  "slug": "lm25005mhx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm25005mhx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "path": "docs/hero.png"
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    "README.md",
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    "lm25005mhx.glb",
    "lm25005mhx.step",
    "lm25005mhx.lbr",
    "docs/hero.png",
    "docs/lm25005mhx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm25005mhx-hero.glb",
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  "component": {
    "mpn": "LM25005MHX",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-20-EP",
    "pin_count": 21,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm25005",
    "parts": {
      "symbol": "lm25005mhx.kicad_sym",
      "footprint": "lm25005mhx.kicad_mod",
      "model_3d": "lm25005mhx-hero.glb",
      "model_3d_plain": "lm25005mhx.glb",
      "model_3d_step": "lm25005mhx-etched.step",
      "model_3d_step_plain": "lm25005mhx.step",
      "lbr": "lm25005mhx.lbr"
    },
    "distributor_links": {
      "lcsc": 206485,
      "digikey": "LM25005MHX-ND",
      "mouser": "926-LM25005MHX"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T22:26:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM25005MHX-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM25005MHX",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_out",
        "description": "Bias regulator output regulated to 7V (typical) with decoupling capacitor 0.1µF to 1µF required."
      },
      {
        "number": "2",
        "name": "SD",
        "type": "input",
        "description": "Shutdown/UVLO input where voltage below 0.7V shuts down regulator, 0.7V to 1.225V is standby mode, above 1.225V enables normal operation, with internal 5µA pull-up when open."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input power supply voltage with nominal operating range of 7V to 42V."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Input power supply voltage with nominal operating range of 7V to 42V."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "tri_state",
        "description": "Oscillator synchronization input/output using open-drain architecture with 15ns minimum pulse width for external clock synchronization or multi-device phasing."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output connected to feedback compensation network between this pin and FB pin."
      },
      {
        "number": "7",
        "name": "FB",
        "type": "input",
        "description": "Feedback signal input to error amplifier inverting input with 1.225V reference threshold for output voltage regulation."
      },
      {
        "number": "8",
        "name": "RT",
        "type": "input",
        "description": "Oscillator frequency setting input controlled by external resistor to AGND with recommended operating frequency range of 50kHz to 500kHz."
      },
      {
        "number": "9",
        "name": "RAMP",
        "type": "input",
        "description": "Ramp generator input controlled by external capacitor (50pF to 2nF) connected between this pin and AGND setting slope compensation."
      },
      {
        "number": "10",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference providing internal bias reference for control functions."
      },
      {
        "number": "11",
        "name": "SS",
        "type": "input",
        "description": "Soft start input controlled by external capacitor and internal 10µA current source setting ramp rate, held low during standby/UVLO/thermal shutdown."
      },
      {
        "number": "12",
        "name": "OUT",
        "type": "input",
        "description": "Output voltage sensing input directly connected to regulated VOUT for feedback control loop."
      },
      {
        "number": "13",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground reference for integrated gate driver and current sense resistor low side."
      },
      {
        "number": "14",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground reference for integrated gate driver and current sense resistor low side."
      },
      {
        "number": "15",
        "name": "IS",
        "type": "input",
        "description": "Current sense input at freewheeling Schottky diode anode with internal sense resistor providing 0.5V/A current measurement for control loop."
      },
      {
        "number": "16",
        "name": "IS",
        "type": "input",
        "description": "Current sense input at freewheeling Schottky diode anode with internal sense resistor providing 0.5V/A current measurement for control loop."
      },
      {
        "number": "17",
        "name": "SW",
        "type": "output",
        "description": "Switch node output from internal buck MOSFET source terminal connected to Schottky diode anode and output inductor."
      },
      {
        "number": "18",
        "name": "SW",
        "type": "output",
        "description": "Switch node output from internal buck MOSFET source terminal connected to Schottky diode anode and output inductor."
      },
      {
        "number": "19",
        "name": "PRE",
        "type": "tri_state",
        "description": "Bootstrap capacitor pre-charge open-drain output connected to SW pin, conducting 250ns per cycle before buck switch on-time for light load pre-charging."
      },
      {
        "number": "20",
        "name": "BST",
        "type": "power_in",
        "description": "Bootstrap capacitor supply input with 22nF ceramic capacitor charged from VCC through internal bootstrap diode during buck switch off-time."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "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": [
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 30,
        "cost_usd": 0.263,
        "at": "2026-10-05T22:26:07"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm25005",
        "pages": 39,
        "sha256": "cd8d34f54f429d0e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}