TPS51275CRUKR

{
  "slug": "tps51275crukr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, WQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps51275crukr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps51275crukr.kicad_sym",
    "tps51275crukr.kicad_mod",
    "tps51275crukr.glb",
    "tps51275crukr.step",
    "tps51275crukr.lbr",
    "docs/hero.png",
    "docs/tps51275crukr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps51275crukr-hero.glb",
    "tps51275crukr-hero.overlay.json",
    "tps51275crukr-etched.glb"
  ],
  "component": {
    "mpn": "TPS51275CRUKR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-20-EP(3x3)",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps51275c",
    "parts": {
      "symbol": "tps51275crukr.kicad_sym",
      "footprint": "tps51275crukr.kicad_mod",
      "model_3d": "tps51275crukr-hero.glb",
      "model_3d_plain": "tps51275crukr-etched.glb",
      "model_3d_step": "tps51275crukr-etched.step",
      "model_3d_step_plain": "tps51275crukr.step",
      "lbr": "tps51275crukr.lbr"
    },
    "distributor_links": {
      "lcsc": "C353884",
      "digikey": "296-49307-2-ND",
      "mouser": "595-TPS51275CRUKR"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T18:05:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-49307-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS51275CRUKR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS1",
        "type": "output",
        "description": "Sets the channel 1 overcurrent (OCL) trip level; CS1 sources about 10 µA and its voltage must stay between 0.2 V and 2 V over all operating temperatures."
      },
      {
        "number": "2",
        "name": "VFB1",
        "type": "input",
        "description": "Channel 1 voltage feedback input; OVP trips at 115% typ and UVP at 60% typ of the set output voltage."
      },
      {
        "number": "3",
        "name": "VREG3",
        "type": "power_out",
        "description": "3.3-V LDO output that supplies the analog circuitry; add a ceramic capacitor of 1 µF or larger (X5R or better) close to the pin."
      },
      {
        "number": "4",
        "name": "VFB2",
        "type": "input",
        "description": "Channel 2 voltage feedback input; OVP trips at 115% typ and UVP at 60% typ of the set output voltage."
      },
      {
        "number": "5",
        "name": "CS2",
        "type": "output",
        "description": "Sets the channel 2 overcurrent (OCL) trip level; CS2 sources about 10 µA and its voltage must stay between 0.2 V and 2 V over all operating temperatures."
      },
      {
        "number": "6",
        "name": "EN2",
        "type": "input",
        "description": "Channel 2 enable input; the SMPS turns on above 1.6 V and off below 0.3 V."
      },
      {
        "number": "7",
        "name": "PGOOD",
        "type": "output",
        "description": "Combined power-good open-drain output that must be pulled up to an external rail through a resistor; sink current is 6.5 mA max at 0.5 V."
      },
      {
        "number": "8",
        "name": "SW2",
        "type": "output",
        "description": "Channel 2 switch-node connection, which must be tied to the drain of the low-side MOSFET because the inductor current is sensed between GND and SW2."
      },
      {
        "number": "9",
        "name": "VBST2",
        "type": "input",
        "description": "Bootstrap supply input for the channel 2 high-side MOSFET driver; connect a capacitor from this pin to SW2."
      },
      {
        "number": "10",
        "name": "DRVH2",
        "type": "output",
        "description": "Channel 2 high-side gate driver output."
      },
      {
        "number": "11",
        "name": "DRVL2",
        "type": "output",
        "description": "Channel 2 low-side gate driver output."
      },
      {
        "number": "12",
        "name": "VIN",
        "type": "power_in",
        "description": "Power conversion input, which must be supplied with the same voltage as the drain of the high-side MOSFETs of channels 1 and 2 (5 V to 24 V operating range)."
      },
      {
        "number": "13",
        "name": "VREG5",
        "type": "power_out",
        "description": "5-V LDO output that supplies the gate drivers (100 mA); add a ceramic capacitor of 1 µF or larger (X5R or better) close to the pin."
      },
      {
        "number": "14",
        "name": "VO1",
        "type": "input",
        "description": "Output voltage input for channel 1 that provides the 5-V switch-over input to VREG5 and VREG3."
      },
      {
        "number": "15",
        "name": "DRVL1",
        "type": "output",
        "description": "Channel 1 low-side gate driver output."
      },
      {
        "number": "16",
        "name": "DRVH1",
        "type": "output",
        "description": "Channel 1 high-side gate driver output."
      },
      {
        "number": "17",
        "name": "VBST1",
        "type": "input",
        "description": "Bootstrap supply input for the channel 1 high-side MOSFET driver; connect a capacitor from this pin to SW1."
      },
      {
        "number": "18",
        "name": "SW1",
        "type": "output",
        "description": "Channel 1 switch-node connection, which must be tied to the drain of the low-side MOSFET because the inductor current is sensed between GND and SW1."
      },
      {
        "number": "19",
        "name": "VCLK",
        "type": "output",
        "description": "260-kHz clock output for an external charge pump, available when EN1 is on and driven from VO1; leave open if unused."
      },
      {
        "number": "20",
        "name": "EN1",
        "type": "input",
        "description": "Channel 1 enable input; the SMPS turns on above 1.6 V and off below 0.3 V."
      },
      {
        "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 thermal pad is a GND terminal (solder to ground plane) but the datasheet does not print a pin nu; The datasheet classes VIN as I, VREG3 and VREG5 as O. They are mapped here to power_in and power_out; Pin numbers and names come from the pin-function table, which is shared by TPS51275, TPS51275B and T",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.069,
        "at": "2026-10-20T18:04:27"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps51275c",
        "pages": 32,
        "sha256": "3995a003a7a617e9",
        "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": "tps51275crukr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0ee4e1082236390795238cd34b082d96efd160d6292c636cc40201a5a30cdc63",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps51275crukr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "051df1d18c2f05c684cd4528a378fa33ddedff6f5a360fe72f4dd76bd6f4c243",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}