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Ray Set visibility: public 8d6382c 3d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "a8653klptr-t",
  "title": "A8653KLPTR-T",
  "brief": "Allegro MicroSystems, LLC DC-DC Converters, HTSSOP-16. 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",
    "a8653klptr-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "A8653KLPTR-T",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "HTSSOP-16",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/deb1edc5969250fe0abf1fb5116c6a15.pdf",
    "parts": {
      "symbol": "a8653klptr-t.kicad_sym",
      "footprint": "a8653klptr-t.kicad_mod",
      "model_3d": "a8653klptr-t-hero.glb",
      "model_3d_plain": "a8653klptr-t-etched.glb",
      "model_3d_step": "a8653klptr-t-etched.step",
      "model_3d_step_plain": "a8653klptr-t.step",
      "lbr": "a8653klptr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071733",
      "digikey": "620-A8653KLPTR-TTR-ND",
      "mouser": "250-A8653KLPTR-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T16:40:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-A8653KLPTR-TTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A8653KLPTR-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable input: set high to turn the converter on or set low to turn it off; it may be connected to VIN."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input for the control circuits and the drain of the internal high-side N-channel MOSFET; a high-quality ceramic capacitor should be placed very close to this pin."
      },
      {
        "number": "3",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start pin; a capacitor CSS from this pin to GND sets the soft-start time and also determines the hiccup period during overcurrent."
      },
      {
        "number": "4",
        "name": "GADJ",
        "type": "input",
        "description": "Sets the gain of the differential current sense amplifier via a resistor to GND; grounding GADJ disables the Remote Load Regulation function."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback (negative) input to the error amplifier; a resistor divider from the converter output (VOUT) programs the output voltage."
      },
      {
        "number": "6",
        "name": "IADJ",
        "type": "input",
        "description": "Active current limit adjust pin; a resistor from this pin to GND sets the current limit, and when load current exceeds it the output voltage decreases at a predefined slope."
      },
      {
        "number": "7",
        "name": "SGND",
        "type": "power_in",
        "description": "Signal (quiet) ground."
      },
      {
        "number": "8",
        "name": "COMP",
        "type": "passive",
        "description": "Output of the error amplifier and loop compensation node; a series RC network from this pin to GND compensates the control loop."
      },
      {
        "number": "9",
        "name": "SYNC/FSET",
        "type": "input",
        "description": "Frequency setting and synchronization pin; a resistor RFSET from this pin to GND sets the PWM switching frequency."
      },
      {
        "number": "10",
        "name": "POK",
        "type": "output",
        "description": "Power OK open-drain output that transitions from low to high impedance when the output is within the final regulation voltage and no load-side current limit exists."
      },
      {
        "number": "11",
        "name": "ISEN–",
        "type": "input",
        "description": "Negative current-sensing pin to the internal current sense amplifier, connected to the load side of the external current sensing resistor."
      },
      {
        "number": "12",
        "name": "ISEN+",
        "type": "input",
        "description": "Positive current-sensing pin to the internal current sense amplifier, connected to the inductor side of the external current sensing resistor."
      },
      {
        "number": "13",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "14",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "15",
        "name": "SW",
        "type": "output",
        "description": "Source of the high-side N-channel MOSFET; the output inductor LO connects to this pin and should be placed as close as possible with relatively wide traces."
      },
      {
        "number": "16",
        "name": "BOOT",
        "type": "passive",
        "description": "High-side gate drive boost input; connect a 100 nF ceramic capacitor from BOOT to SW."
      },
      {
        "number": "17",
        "name": "PAD",
        "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 ordering code A8653KLPTR-T is not shown in the supplied pages. The only 16-pin package in the ex; The exposed thermal pad (PAD) is not numbered in the datasheet and is not listed as a numbered pin, ; In the extracted terminal list, the SW pin number reads '115', which is a text extraction error. The",
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0537,
        "at": "2026-10-30T16:39:47"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/deb1edc5969250fe0abf1fb5116c6a15.pdf",
        "pages": 37,
        "sha256": "217c0a15c2d79b3e",
        "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": "a8653klptr-t.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": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a8653klptr-t-etched.step",
        "role": "eda",
        "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": "517a9f9d9dbe5ad537880e0806468b24f68fc6839220dd1643c9a59a695f7cc7",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "LP",
      "source_page": 36,
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.2,
        "range_mm": [
          null,
          1.2
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "a8653klptr-t.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "HTSSOP-16",
      "Category": "Power Supply Chip",
      "Pins": "17"
    },
    "appearance": {
      "contacts": {
        "quote": "exposed pads for enhanced thermal dissipation. It is lead (Pb) free, with 100% matte-tin lead frame plating. The maximum junction",
        "page": 2,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "217c0a15c2d79b3e5bac04a9abccbb7f351132a706072474badd1f503ba08b79"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "217c0a15c2d79b3e5bac04a9abccbb7f351132a706072474badd1f503ba08b79",
      "rows": [
        {
          "name": "VIN, EN, SS",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SW to GND",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Continuous; upper limit printed as VIN + 0.3 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SW to GND",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1,
          "typ": null,
          "max": null,
          "conditions": "VIN ≤ 36 V, t < 50 ns; upper limit printed as VIN + 2 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "BOOT Pin Above SW Pin",
          "symbol": "VBOOT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "Continuous, above SW pin (VSW – 0.3 to VSW + 5.5 V)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "BOOT Pin Above SW Pin",
          "symbol": "VBOOT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "< 1 ms, above SW pin (VSW – 0.3 to VSW + 7 V)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ISEN+ and ISEN– Pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ISEN+ to ISEN– Differential Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "All other pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ(max)",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "ºC",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Input Voltage Range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Setting Range",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 5.75,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Current sense resistor (Rsen)",
          "symbol": "Rsen",
          "kind": "recommended_operating",
          "unit": "mΩ",
          "min": 20,
          "typ": null,
          "max": 50,
          "conditions": "Load-side current sense resistor value",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "GADJ equivalent resistance range",
          "symbol": "RG_eqv",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 10,
          "typ": null,
          "max": 34,
          "conditions": "Eq. 7: 10 kΩ < RG_eqv < 34 kΩ",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "IADJ equivalent resistance range",
          "symbol": "RI_eqv",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 10,
          "typ": null,
          "max": 34,
          "conditions": "Eq. 8: 10 kΩ < RI_eqv < 34 kΩ",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Output capacitor charge current during soft-start (recommended)",
          "symbol": "ICO",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0.1,
          "typ": null,
          "max": 0.3,
          "conditions": "Recommended 0.1 A < ICO < 0.3 A",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "UVLO Start Threshold",
          "symbol": "VUVLO(START)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.4,
          "max": 3.7,
          "conditions": "VIN rising",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "UVLO Stop Threshold",
          "symbol": "VUVLO(STOP)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.6,
          "max": 2.9,
          "conditions": "VIN falling",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 6.5,
          "conditions": "VEN = 5 V, VFB = 1 V, no PWM switching",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Sleep Supply Current",
          "symbol": "IQSLEEP",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 240,
          "conditions": "VIN = 12 V, VEN ≤ 0.4 V, –40°C < TA = TJ < 85°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Sleep Supply Current",
          "symbol": "IQSLEEP",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 40,
          "max": 900,
          "conditions": "VIN = 12 V, VEN ≤ 0.4 V, TA = TJ = 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage Accuracy",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "mV",
          "min": 792,
          "typ": 800,
          "max": 808,
          "conditions": "VFB = VCOMP, VGADJ = 0 V, –40°C < TA = TJ < 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage Accuracy",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "mV",
          "min": 788,
          "typ": 800,
          "max": 812,
          "conditions": "VFB = VCOMP, VGADJ = 0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage Accuracy with Cable Compensation",
          "symbol": "VFB(ACC)",
          "kind": "electrical",
          "unit": "mV",
          "min": 808,
          "typ": 825,
          "max": 842,
          "conditions": "VFB = VCOMP, VISEN+ – VISEN– = 25 mV, VOUT = 5 V, RGADJ = 20 kΩ, RIADJ = 20 kΩ",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Error Amp Clamp Voltage",
          "symbol": "VFB(CLAMP)",
          "kind": "electrical",
          "unit": "mV",
          "min": 900,
          "typ": 920,
          "max": 940,
          "conditions": "VFB = VCOMP, VISEN+ – VISEN– = 55 mV, VOUT =5 V, RGADJ = 7.5 kΩ, RIADJ = 20 kΩ",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Dropout Voltage",
          "symbol": "VO(PWM)",
          "kind": "electrical",
          "unit": "V",
          "min": 4.9,
          "typ": null,
          "max": null,
          "conditions": "VIN = 5.7 V, IO = 2.6 A, fSW = 500 kHz (A8653)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback Input Bias Current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": -8,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Transconductance",
          "symbol": "gmEA",
          "kind": "electrical",
          "unit": "µA/V",
          "min": 550,
          "typ": 750,
          "max": 950,
          "conditions": "400 mV < VFB",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Transconductance",
          "symbol": "gmEA",
          "kind": "electrical",
          "unit": "µA/V",
          "min": 275,
          "typ": 375,
          "max": 475,
          "conditions": "0 V < VFB < 400 mV",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "IEA",
          "kind": "electrical",
          "unit": "µA",
          "min": -75,
          "typ": null,
          "max": 75,
          "conditions": "VCOMP = 1.2 V (printed as ±75 µA)",
          "source_page": 6,
          "source": "datasheet"
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