LM26400YMH

{
  "slug": "lm26400ymh",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm26400ymh",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm26400ymh.kicad_sym",
    "lm26400ymh.kicad_mod",
    "lm26400ymh.glb",
    "lm26400ymh.step",
    "lm26400ymh.lbr",
    "docs/hero.png",
    "docs/lm26400ymh-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm26400ymh-hero.glb",
    "lm26400ymh-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM26400YMH",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm26400y",
    "parts": {
      "symbol": "lm26400ymh.kicad_sym",
      "footprint": "lm26400ymh.kicad_mod",
      "model_3d": "lm26400ymh-hero.glb",
      "model_3d_plain": "lm26400ymh.glb",
      "model_3d_step": "lm26400ymh-etched.step",
      "model_3d_step_plain": "lm26400ymh.step",
      "lbr": "lm26400ymh.lbr"
    },
    "distributor_links": {
      "lcsc": "C1355296"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T00:15:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB1",
        "type": "input",
        "description": "Feedback pin of Channel 1; connect FB1 to an external voltage divider to set the output voltage of Channel 1."
      },
      {
        "number": "2",
        "name": "SS1",
        "type": "input",
        "description": "Soft-start pin of Channel 1; connect a capacitor between this pin and ground to program the start-up speed."
      },
      {
        "number": "3",
        "name": "EN1",
        "type": "input",
        "description": "Enable control input for Channel 1; logic high enables operation, and this pin must not be allowed to float or be greater than VIN + 0.3 V."
      },
      {
        "number": "4",
        "name": "AVIN",
        "type": "power_in",
        "description": "Input supply for generating the internal bias used by the entire IC and for the internal bootstrap bias; needs to be locally bypassed."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground; Kelvin connect the lower resistor of the feedback voltage divider to this pin for good load regulation."
      },
      {
        "number": "6",
        "name": "EN2",
        "type": "input",
        "description": "Enable control input for Channel 2; logic high enables operation, and this pin must not be allowed to float or be greater than VIN + 0.3 V."
      },
      {
        "number": "7",
        "name": "SS2",
        "type": "input",
        "description": "Soft-start pin of Channel 2; connect a capacitor between this pin and ground to program the start-up speed."
      },
      {
        "number": "8",
        "name": "FB2",
        "type": "input",
        "description": "Feedback pin of Channel 2; connect FB2 to an external voltage divider to set the output voltage of Channel 2."
      },
      {
        "number": "9",
        "name": "BST2",
        "type": "output",
        "description": "Supply rail for the gate drive of Channel 2's NMOS switch; a bootstrap capacitor should be placed between BST2 and SW2."
      },
      {
        "number": "10",
        "name": "SW2",
        "type": "output",
        "description": "Switch node of Channel 2; connects to the inductor, catch diode, and bootstrap capacitor."
      },
      {
        "number": "11",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage of the power supply, directly connected to the drain of the internal NMOS switch; tie together with pins 12-14 and connect to a local bypass capacitor."
      },
      {
        "number": "12",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage of the power supply, directly connected to the drain of the internal NMOS switch; tie together with pins 11, 13 and 14 and connect to a local bypass capacitor."
      },
      {
        "number": "13",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage of the power supply, directly connected to the drain of the internal NMOS switch; tie together with pins 11, 12 and 14 and connect to a local bypass capacitor."
      },
      {
        "number": "14",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage of the power supply, directly connected to the drain of the internal NMOS switch; tie together with pins 11-13 and connect to a local bypass capacitor."
      },
      {
        "number": "15",
        "name": "SW1",
        "type": "output",
        "description": "Switch node of Channel 1; connects to the inductor, catch diode, and bootstrap capacitor."
      },
      {
        "number": "16",
        "name": "BST1",
        "type": "output",
        "description": "Supply rail for the gate drive of Channel 1's NMOS switch; a bootstrap capacitor should be placed between BST1 and SW1."
      },
      {
        "number": "17",
        "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-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The exposed thermal die-attach pad (DAP) is listed in the pin table with no pin number, so it is not; PVIN is one net shared by four pins (11-14) in the datasheet table; each is listed separately with t; The pin table covers both the PWP (HTSSOP) and NHQ (WSON) packages with identical pin numbers. The p",
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0515,
        "at": "2026-10-12T00:15:20"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm26400y",
        "pages": 36,
        "sha256": "015a87ce06f1ff09",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm26400ymh-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1bd34143cd36cf167b4bfa67596c2dfa9104873293431b0a586714db8a49a488",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}