TPS40056PWPR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps40056pwpr",
  "title": "TPS40056PWPR",
  "brief": "Texas Instruments DC-DC Controllers, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "tps40056pwpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TPS40056PWPR",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps40056",
    "parts": {
      "symbol": "tps40056pwpr.kicad_sym",
      "footprint": "tps40056pwpr.kicad_mod",
      "model_3d": "tps40056pwpr-hero.glb",
      "model_3d_plain": "tps40056pwpr.glb",
      "model_3d_step": "tps40056pwpr-etched.step",
      "model_3d_step_plain": "tps40056pwpr.step",
      "lbr": "tps40056pwpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C544428",
      "digikey": "296-TPS40056PWPRTR-ND",
      "mouser": "595-TPS40056PWPR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:07:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TPS40056PWPRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS40056PWPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SYNC",
        "type": "input",
        "description": "Synchronization input that locks the oscillator to an external master frequency; it has VIH of 2 V to 5 V, VIL of 0.8 V maximum, and a minimum pulse width of 50 ns, and it must be connected to SGND if synchronization is not used."
      },
      {
        "number": "2",
        "name": "RT",
        "type": "input",
        "description": "A resistor from this pin to ground sets the internal oscillator and switching frequency, with RT voltage of 2.38 V to 2.58 V (2.50 V typical) and an absolute maximum output current of 200 µA."
      },
      {
        "number": "3",
        "name": "BP5",
        "type": "output",
        "description": "5-V reference output (4.5 V to 5.5 V at 1 mA load) that must be bypassed to ground with a 0.1-µF ceramic capacitor and may supply an external DC load of 1 mA or less."
      },
      {
        "number": "4",
        "name": "EA_REF",
        "type": "input",
        "description": "Non-inverting input to the error amplifier that serves as the reference for the feedback loop, with a common-mode range of 0.2 V to 2.5 V."
      },
      {
        "number": "5",
        "name": "SGND",
        "type": "power_in",
        "description": "Signal ground reference for the device; the PowerPAD heat slug must be connected to this pin or electrically isolated from all other pins."
      },
      {
        "number": "6",
        "name": "SS/SD",
        "type": "input",
        "description": "Soft-start programming pin where a capacitor to ground sets the soft-start time using an internal 2.3-µA charge current, and pulling this pin low (below the 90 mV to 165 mV shutdown threshold) disables the controller."
      },
      {
        "number": "7",
        "name": "VFB",
        "type": "input",
        "description": "Inverting input to the error amplifier that, in normal operation, is held equal to the EA_REF reference voltage."
      },
      {
        "number": "8",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output to the PWM comparator, with a feedback network from this pin to VFB for loop compensation; the pin is internally clamped above the peak of the ramp."
      },
      {
        "number": "9",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground reference for the device that requires a low-impedance path to the source(s) of the lower MOSFET(s)."
      },
      {
        "number": "10",
        "name": "LDRV",
        "type": "output",
        "description": "Gate drive for the N-channel synchronous rectifier that switches from BP10 (MOSFET on) to ground (MOSFET off)."
      },
      {
        "number": "11",
        "name": "BP10",
        "type": "output",
        "description": "10-V reference (9.0 V to 10.3 V) used for synchronous rectifier gate drive that must be bypassed with a 1-µF ceramic capacitor and may supply an external DC load of 1 mA or less."
      },
      {
        "number": "12",
        "name": "SW",
        "type": "input",
        "description": "Connection to the switched node of the converter used for overcurrent sensing, rated −0.3 V to 45 V (−2.5 V transient for less than 50 ns)."
      },
      {
        "number": "13",
        "name": "HDRV",
        "type": "output",
        "description": "Floating gate drive for the high-side N-channel MOSFET that switches from BOOST (MOSFET on) to SW (MOSFET off)."
      },
      {
        "number": "14",
        "name": "BOOST",
        "type": "output",
        "description": "Gate drive voltage for the high-side N-channel MOSFET that sits 9 V above the input voltage, with a 0.1-µF ceramic capacitor connected from this pin to SW."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage for the device, operating over 10 V to 40 V with an absolute maximum of 45 V."
      },
      {
        "number": "16",
        "name": "ILIM",
        "type": "input",
        "description": "Current-limit threshold pin where an internal 8 µA to 12 µA sink through an external resistor to VCC sets the overcurrent threshold, which is compared against the VIN − SW drop across the high-side MOSFET during conduction."
      },
      {
        "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 PowerPAD exposed thermal pad is not given a pin number in the datasheet pinout or terminal table; The terminal table lists VIN (pin 15) and SGND (pin 5) as type I and signal ground, respectively. VI; The datasheet classifies SW as input (I) because it is used for overcurrent sensing, although it is ",
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0662,
        "at": "2026-10-08T19:07:19"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps40056",
        "pages": 36,
        "sha256": "92cec24b9eb3f487",
        "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": [
      {
        "file": "tps40056pwpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps40056pwpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a6e599686f82611e80b3f10ce38d560a3ef6783bb70c29b55568e00386d3c76b",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HTSSOP-16-EP",
      "Category": "Power Supply Chip",
      "Pins": "17"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tps40056pwpr"
  ],
  "discovery_pitch": "TPS40056PWPR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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    "tps40056pwpr.step",
    "tps40056pwpr.lbr",
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    "docs/tps40056pwpr-datasheet.pdf",
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  "visibility": {
    "public": true
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}