LM5175QPWPRQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm5175qpwprq1",
  "title": "LM5175QPWPRQ1",
  "brief": "Texas Instruments DC-DC Converters, HTSSOP-28. 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 management (pmic)",
    "lm5175qpwprq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM5175QPWPRQ1",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-28",
    "pin_count": 29,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm5175-q1",
    "parts": {
      "symbol": "lm5175qpwprq1.kicad_sym",
      "footprint": "lm5175qpwprq1.kicad_mod",
      "model_3d": "lm5175qpwprq1-etched.glb",
      "model_3d_plain": "lm5175qpwprq1.glb",
      "model_3d_step": "lm5175qpwprq1-etched.step",
      "model_3d_step_plain": "lm5175qpwprq1.step",
      "lbr": "lm5175qpwprq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C187912",
      "digikey": "296-44175-2-ND",
      "mouser": "595-LM5175QPWPRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-09-27T08:39:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-44175-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM5175QPWPRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN/UVLO",
        "type": "input",
        "description": "Enable pin with programmable UVLO threshold; shutdown <0.4V, standby 0.7-1.23V, operating >1.23V (requires VCC >3.3V)."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin; connect to supply voltage 3.5-42V nominal, 60V absolute maximum."
      },
      {
        "number": "3",
        "name": "VISNS",
        "type": "input",
        "description": "Input voltage sense input; connect to input capacitor for VIN monitoring."
      },
      {
        "number": "4",
        "name": "MODE",
        "type": "input",
        "description": "Mode selection input; sets CCM/DCM operation and enables/disables hiccup via RMODE resistor to GND (0Ω/49.9kΩ/93.1kΩ) or VCC."
      },
      {
        "number": "5",
        "name": "DITH",
        "type": "input",
        "description": "Frequency dithering control pin; capacitor to AGND modulates frequency ±5% at 10µA charge/discharge, ground to disable."
      },
      {
        "number": "6",
        "name": "RT/SYNC",
        "type": "input",
        "description": "Frequency programming input; external resistor to AGND sets switching frequency 100-600kHz, or external sync pulse 75-500ns at >2.1V threshold."
      },
      {
        "number": "7",
        "name": "SLOPE",
        "type": "input",
        "description": "Slope compensation node; external capacitor to AGND provides adaptive ramp for stable current-mode control in buck and boost."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "input",
        "description": "Soft-start capacitor connection pin; capacitor to AGND programs startup time with 5µA pull-up current, clamped to 1.27V."
      },
      {
        "number": "9",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output for external compensation network; 0.3-3V output range, 1.27MΩ output impedance."
      },
      {
        "number": "10",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference for all analog signal paths and feedback circuits."
      },
      {
        "number": "11",
        "name": "FB",
        "type": "input",
        "description": "Feedback input for output voltage regulation; referenced to 0.8V internal VREF, with ±10% PGOOD window."
      },
      {
        "number": "12",
        "name": "VOSNS",
        "type": "input",
        "description": "Output voltage sense input; connect to output capacitor for VOUT monitoring."
      },
      {
        "number": "13",
        "name": "ISNS(–)",
        "type": "input",
        "description": "Current sense amplifier negative input; forms 50mV regulation threshold with ISNS(+) for average current limiting."
      },
      {
        "number": "14",
        "name": "ISNS(+)",
        "type": "input",
        "description": "Current sense amplifier positive input; forms 50mV regulation threshold with ISNS(-) for average input/output current limiting."
      },
      {
        "number": "15",
        "name": "CSG",
        "type": "input",
        "description": "Ground reference for PWM current sense amplifier; connect directly to low-side of current sense resistor."
      },
      {
        "number": "16",
        "name": "CS",
        "type": "input",
        "description": "Positive input to PWM current sense amplifier; connect to high-side of sense resistor; 76mV (buck) / 160mV (boost) cycle-by-cycle current limits."
      },
      {
        "number": "17",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power good output; pulled low when FB voltage outside ±10% window around 0.8V reference (-9%/+10% hysteresis)."
      },
      {
        "number": "18",
        "name": "SW2",
        "type": "output",
        "description": "Boost-side switching node; high-voltage switching output (−1 to 60V, 65V transient) for power stage and BOOT2 bootstrap circuit."
      },
      {
        "number": "19",
        "name": "HDRV2",
        "type": "output",
        "description": "High-side gate driver output for boost stage; sources 1.8A peak, sinks 2.2A peak with 55ns dead-time from LDRV2."
      },
      {
        "number": "20",
        "name": "BOOT2",
        "type": "passive",
        "description": "Bootstrap capacitor connection point; external capacitor between BOOT2 and SW2 provides 5.62V typical bias to HDRV2 gate driver."
      },
      {
        "number": "21",
        "name": "LDRV2",
        "type": "output",
        "description": "Low-side gate driver output for boost stage; sources 1.8A peak, sinks 2.2A peak with 55ns dead-time to HDRV2."
      },
      {
        "number": "22",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground reference; high-current ground return for low-side gate drivers and power stage."
      },
      {
        "number": "23",
        "name": "VCC",
        "type": "power_out",
        "description": "Regulated 7.5V output from internal bias regulator (6.95-7.88V); bypass with 1µF capacitor to PGND."
      },
      {
        "number": "24",
        "name": "BIAS",
        "type": "power_in",
        "description": "Optional external bias supply input 8-36V; powers VCC regulator when VBIAS >8V to reduce power loss, must not exceed 40V."
      },
      {
        "number": "25",
        "name": "LDRV1",
        "type": "output",
        "description": "Low-side gate driver output for buck stage; sources 1.8A peak, sinks 2.2A peak with 55ns dead-time from HDRV1."
      },
      {
        "number": "26",
        "name": "BOOT1",
        "type": "passive",
        "description": "Bootstrap capacitor connection point; external capacitor between BOOT1 and SW1 provides 5.62V typical bias to HDRV1 gate driver."
      },
      {
        "number": "27",
        "name": "HDRV1",
        "type": "output",
        "description": "High-side gate driver output for buck stage; sources 1.8A peak, sinks 2.2A peak with 55ns dead-time to LDRV1."
      },
      {
        "number": "28",
        "name": "SW1",
        "type": "output",
        "description": "Buck-side switching node; high-voltage switching output (−1 to 60V, 65V transient) for power stage and BOOT1 bootstrap circuit."
      },
      {
        "number": "29",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: PGOOD pin classified as open-drain output; could also be classified as tri_state (high-impedance whe; BOOT1 and BOOT2 pins classified as passive since they are bootstrap capacitor connection points and ; PowerPAD (thermal pad) included as special entry with designation 'PAD'; HTSSOP-28 PWP package varia",
          "exposed pad 29 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 36,
        "cost_usd": 0.4761,
        "at": "2026-09-27T08:38:50"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm5175-q1",
        "pages": 36,
        "sha256": "02b7ec17407f0576",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HTSSOP-28",
      "Category": "Power Management (PMIC)",
      "Pins": "29"
    }
  },
  "variants": [],
  "sections": [
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    "breadcrumbs",
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "LM5175QPWPRQ1 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  "visibility": {
    "public": true
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}