TPS61091

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps61091",
  "title": "TPS61091",
  "brief": "TI synchronous boost converter, VQFN-16. 1.8-5.5 V in, 2 A switch, low-battery detector. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power",
    "boost-converter",
    "switching-regulator",
    "dc-dc",
    "vqfn-16",
    "texas-instruments"
  ],
  "component": {
    "mpn": "TPS61091",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-16",
    "pin_count": 17,
    "category": "Power Management",
    "subcategory": "Switching regulator (boost)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps61091.pdf",
    "parts": {
      "symbol": "tps61091.kicad_sym",
      "footprint": "tps61091.kicad_mod",
      "model_3d": "tps61091-etched.glb",
      "model_3d_plain": "tps61091.glb",
      "model_3d_step": "tps61091-etched.step",
      "model_3d_step_plain": "tps61091.step",
      "lbr": "tps61091.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "DC-DC boost converter output. Fixed 3.3 V on TPS61091; part of the 3-pin VOUT group (pins 1, 15, 16) - tie all three together at the output capacitor."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected. Leave floating or tie to GND for mechanical stability; no internal bond."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "passive",
        "description": "Boost/rectifying switch node. Connect the external inductor between VBAT and SW (typ. 6.8 µH). Shared with pin 4 - bond both pins together for the 2-A switch current."
      },
      {
        "number": "4",
        "name": "SW",
        "type": "passive",
        "description": "Boost/rectifying switch node (paired with pin 3). Peak switch current limited to 2500 mA."
      },
      {
        "number": "5",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground return for the boost/rectifier switch. Tie pins 5, 6, 7 together to the PowerPAD and to the input/output capacitor grounds with a low-impedance plane."
      },
      {
        "number": "6",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground (paired with pins 5 and 7)."
      },
      {
        "number": "7",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground (paired with pins 5 and 6)."
      },
      {
        "number": "8",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery / supply input, 1.8 V to 5.5 V. Bypass with ≥10 µF ceramic to PGND close to the pin. Also serves as the reference for the EN/SYNC logic high level (0.8 × VBAT)."
      },
      {
        "number": "9",
        "name": "LBI",
        "type": "input",
        "description": "Low-battery comparator input. Threshold 500 mV (typ) with 10 mV hysteresis; comparator is enabled with EN. Absolute-max input is 3.6 V - use an external divider to sense VBAT."
      },
      {
        "number": "10",
        "name": "SYNC",
        "type": "input",
        "description": "Power-save mode select / external sync clock. 1 (≥0.8 × VBAT) = power-save disabled or apply a 500-700 kHz clock for synchronization; 0 (≤0.2 × VBAT) = power-save enabled."
      },
      {
        "number": "11",
        "name": "EN",
        "type": "input",
        "description": "Device enable. 1 (VBAT) enables the converter and LBI/LBO comparator; 0 (GND) shuts the device down (load-disconnect from VBAT to VOUT)."
      },
      {
        "number": "12",
        "name": "LBO",
        "type": "output",
        "description": "Low-battery comparator output, open-drain. Requires external pull-up (to VOUT or system rail). VOL ≈ 40 mV at 100 µA; max leakage 0.1 µA at 7 V."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Control/logic (analog) ground. Kelvin-connect to the PowerPAD ground plane away from the switching PGND current path."
      },
      {
        "number": "14",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback for the adjustable version (TPS61090). On the fixed-output TPS61091 (3.3 V), feedback is internal - tie FB to VOUT via a direct connection per the datasheet's fixed-output usage."
      },
      {
        "number": "15",
        "name": "VOUT",
        "type": "power_out",
        "description": "DC-DC output (paired with pins 1 and 16). Total output capacitance 22-100 µF recommended."
      },
      {
        "number": "16",
        "name": "VOUT",
        "type": "power_out",
        "description": "DC-DC output (paired with pins 1 and 15)."
      },
      {
        "number": "17",
        "name": "PowerPAD",
        "type": "power_in",
        "description": "Exposed thermal pad on the package underside. Must be soldered to the PCB for rated power dissipation; connect to PGND plane."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps61091.pdf",
        "pages": 30,
        "sha256": "6378e47289a28cc3",
        "source_tier": "mfr"
      },
      "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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        "file": "tps61091.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.0,
          4.0,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5b20f698b187ed428a539b539267a1cc9de1373f3b6fcfec9dcccd1f216bdf3d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps61091-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b005262d9f8dd1115fd4df024707aba8623e688e6c357ee5e5a103ea08e58ad5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Synchronous boost converter",
      "Input": "1.8-5.5 V",
      "Output": "Up to 5.5 V (adjustable)",
      "Switch current": "2 A",
      "Extras": "Low-battery detector (LBI/LBO), SYNC",
      "Light load": "Power-save mode",
      "Package": "VQFN-16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tps61091",
    "synchronous boost converter",
    "battery boost regulator",
    "low battery detector"
  ],
  "discovery_pitch": "TI TPS61091 synchronous boost converter (VQFN-16) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "tps61091.lbr",
    "docs/hero.png",
    "docs/tps61091-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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  ],
  "variants": [
    {
      "mpn": "TPS61091RSAR (VQFN-16)",
      "kind": "packaging"
    },
    {
      "mpn": "TPS61091RSAT (VQFN-16, small reel)",
      "kind": "packaging"
    }
  ]
}