LM21215MHE

{
  "slug": "lm21215mhe",
  "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",
    "lm21215mhe",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm21215mhe.kicad_sym",
    "lm21215mhe.kicad_mod",
    "lm21215mhe.glb",
    "lm21215mhe.step",
    "lm21215mhe.lbr",
    "docs/hero.png",
    "docs/lm21215mhe-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm21215mhe-hero.glb",
    "lm21215mhe-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM21215MHE",
    "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/lm21215",
    "parts": {
      "symbol": "lm21215mhe.kicad_sym",
      "footprint": "lm21215mhe.kicad_mod",
      "model_3d": "lm21215mhe-hero.glb",
      "model_3d_plain": "lm21215mhe.glb",
      "model_3d_step": "lm21215mhe-etched.step",
      "model_3d_step_plain": "lm21215mhe.step",
      "lbr": "lm21215mhe.lbr"
    },
    "distributor_links": {
      "lcsc": "C2070969"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T02:56:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ILIM",
        "type": "passive",
        "description": "A resistor between this pin and AGND sets the rising current limit ICLR, and shorting it to AGND programs the maximum possible current limit."
      },
      {
        "number": "2",
        "name": "SS/TRK",
        "type": "passive",
        "description": "An internal 2-µA current source charges an external capacitor between this pin and AGND to set the start-up output voltage ramp rate, and this pin can also configure the tracking feature."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable input, which can be left open because an internal current source pulls it high."
      },
      {
        "number": "4",
        "name": "AVIN",
        "type": "power_in",
        "description": "Analog input supply that generates the internal bias, recommended to be connected to PVIN through a low-pass RC filter; recommended operating range is 2.95 V to 5.5 V."
      },
      {
        "number": "5",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage to the internal power switches, to be connected together with pins 6 and 7 at the device, with low-ESR input capacitance placed as close as possible; recommended operating range is 2.95 V to 5.5 V."
      },
      {
        "number": "6",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage to the internal power switches, to be connected together with pins 5 and 7 at the device, with low-ESR input capacitance placed as close as possible; recommended operating range is 2.95 V to 5.5 V."
      },
      {
        "number": "7",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input voltage to the internal power switches, to be connected together with pins 5 and 6 at the device, with low-ESR input capacitance placed as close as possible; recommended operating range is 2.95 V to 5.5 V."
      },
      {
        "number": "8",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the internal power switches, to be connected together with pins 9 and 10."
      },
      {
        "number": "9",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the internal power switches, to be connected together with pins 8 and 10."
      },
      {
        "number": "10",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the internal power switches, to be connected together with pins 8 and 9."
      },
      {
        "number": "11",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node that should be tied locally with pins 12-16 and connected to the filter inductor."
      },
      {
        "number": "12",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node that should be tied locally with pins 11 and 13-16 and connected to the filter inductor."
      },
      {
        "number": "13",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node that should be tied locally with pins 11-12 and 14-16 and connected to the filter inductor."
      },
      {
        "number": "14",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node that should be tied locally with pins 11-13 and 15-16 and connected to the filter inductor."
      },
      {
        "number": "15",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node that should be tied locally with pins 11-14 and 16 and connected to the filter inductor."
      },
      {
        "number": "16",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node that should be tied locally with pins 11-15 and connected to the filter inductor."
      },
      {
        "number": "17",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power-good indicator output."
      },
      {
        "number": "18",
        "name": "COMP",
        "type": "passive",
        "description": "Compensation pin connected to the output of the voltage loop error amplifier."
      },
      {
        "number": "19",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin connected to the inverting input of the voltage loop error amplifier; the datasheet lists the feedback voltage as 0.6 V with ±1% tolerance."
      },
      {
        "number": "20",
        "name": "AGND",
        "type": "power_in",
        "description": "Quiet analog ground for the internal reference and bias circuitry."
      },
      {
        "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-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 pad (EP) is not a numbered pin. It is included as a separate entry with number 'EP' and ; Pin table 5-1 groups pins 5,6,7 (PVIN), 8,9,10 (PGND) and 11-16 (SW). These are expanded to one entr; Pin types are assigned from the functional descriptions (for example, SW as power_out, PGOOD as open",
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.048,
        "at": "2026-10-12T02:56:16"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm21215",
        "pages": 40,
        "sha256": "08d986dd316137de",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm21215mhe.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.41,
          6.5,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "abab3cdc7c1de321fbba19df07c52b555cfc6cc5d63ee1b34578d40b1db0422d",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm21215mhe-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.41,
          6.5,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "10d63c5bc29a817d1451041c454b8cda6ee608cd9d4eba039495b22d0f881268",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}