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Ray Set visibility: public 2604363 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ltc1844es5-sd-trpbf",
  "title": "LTC1844ES5-SD#TRPBF",
  "brief": "Analog Devices Linear Voltage Regulators (LDO), TSOT-23-5. 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 ics",
    "ltc1844es5-sd#trpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LTC1844ES5-SD#TRPBF",
    "manufacturer": "Analog Devices",
    "package": "TSOT-23-5",
    "pin_count": 5,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/1844fa.pdf",
    "parts": {
      "symbol": "ltc1844es5-sd-trpbf.kicad_sym",
      "footprint": "ltc1844es5-sd-trpbf.kicad_mod",
      "model_3d": "ltc1844es5-sd-trpbf-hero.glb",
      "model_3d_plain": "ltc1844es5-sd-trpbf-etched.glb",
      "model_3d_step": "ltc1844es5-sd-trpbf-etched.step",
      "model_3d_step_plain": "ltc1844es5-sd-trpbf.step",
      "lbr": "ltc1844es5-sd-trpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C678831",
      "digikey": "LTC1844ES5-SD#TRPBFTR-ND",
      "mouser": "584-C1844ES5-SDTRPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T21:22:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LTC1844ES5-SD#TRPBFTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-C1844ES5-SDTRPBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Power input for the regulator and load; the datasheet specifies VIN from 1.6V to 6.5V, absolute supply voltage of -7V to 7V, and the pin withstands reverse voltages, so a 0.1µF to 1µF bypass to ground is usually sufficient."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground and heat sink; solder to a ground plane or large pad to maximize heat dissipation."
      },
      {
        "number": "3",
        "name": "SHDN",
        "type": "input",
        "description": "Active-low shutdown input with a 0.35V to 0.9V threshold (0.65V typical) and typically less than 10nA pin current; it cannot be left floating and must be tied to the input pin if not used."
      },
      {
        "number": "4",
        "name": "ADJ",
        "type": "input",
        "description": "Error amplifier input for the adjustable output, referenced to 1.25V with about 30nA bias current flowing into the pin, setting an output range of 1.25V to 6V through an external resistor divider from OUT to GND."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "power_out",
        "description": "Voltage regulated output that supplies the load; a minimum 1µF output capacitor is required to ensure stability."
      }
    ],
    "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 datasheet's TSOT-23-5 pinout diagrams on page 2 are not labeled per part number in the extracted; Pin 4 descriptions are given as ADJ for adjustable devices and BYP for fixed devices, and the datash"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0802,
        "at": "2026-10-30T21:22:11"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/1844fa.pdf",
        "pages": 12,
        "sha256": "286a8caaef25ce19",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ltc1844es5-sd-trpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5120f0cee43ef7743cc08408d2c12f234fcac7355386e330a3a16f336e23da8d",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ltc1844es5-sd-trpbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7f0cca413817328e8d52f91ce911e6a8b65651983d17ed3d630784e9cc2fbc0a",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "S5",
      "source_page": 12,
      "D": {
        "nom_mm": 2.9,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 1.625,
        "range_mm": [
          1.5,
          1.75
        ]
      },
      "E": {
        "nom_mm": 2.8,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.95,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1,
        "range_mm": [
          null,
          1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ltc1844es5-sd-trpbf.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "TSOT-23-5",
      "Category": "Power Management ICs",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "286a8caaef25ce19d6f3bf2308fcb485dbe323993d4d5e1d14e29c323f734961",
      "rows": [
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": 6.5,
          "conditions": "● full operating temperature range",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 35,
          "max": 55,
          "conditions": "SHDN = VIN",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "● full operating temperature range",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN Shutdown Supply Current",
          "symbol": "IINSHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 1,
          "conditions": "SHDN = 0V; ● full operating temperature range",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Regulated Output Voltage (LTC1844-SD)",
          "symbol": "VOUT%",
          "kind": "tolerance",
          "unit": "%VOUT",
          "min": -1.5,
          "typ": null,
          "max": 1.5,
          "conditions": "VIN = 1.75V to 6.5V, IOUT = 0mA to 150mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Regulated Output Voltage (LTC1844-SD)",
          "symbol": "VOUT%",
          "kind": "tolerance",
          "unit": "%VOUT",
          "min": -1.75,
          "typ": null,
          "max": 1.75,
          "conditions": "VIN = 2.2V to 6.5V, IOUT = 0mA to 150mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Regulated Output Voltage (LTC1844-SD)",
          "symbol": "VOUT%",
          "kind": "tolerance",
          "unit": "%VOUT",
          "min": -3.5,
          "typ": null,
          "max": 1.75,
          "conditions": "VIN = 1.75V to 6.5V, IOUT = 0mA to 100mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ADJ Pin Voltage (LTC1844-SD)",
          "symbol": "VADJ",
          "kind": "tolerance",
          "unit": "V",
          "min": 1.233,
          "typ": 1.25,
          "max": 1.271,
          "conditions": "VIN = 1.75V to 6.5V, IOUT = 0mA to 150mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ADJ Pin Voltage (LTC1844-SD)",
          "symbol": "VADJ",
          "kind": "tolerance",
          "unit": "V",
          "min": 1.23,
          "typ": null,
          "max": 1.274,
          "conditions": "VIN = 2.2V to 6.5V, IOUT = 0mA to 150mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ADJ Pin Voltage (LTC1844-SD)",
          "symbol": "VADJ",
          "kind": "tolerance",
          "unit": "V",
          "min": 1.208,
          "typ": null,
          "max": 1.274,
          "conditions": "VIN = 1.75V to 6.5V, IOUT = 0mA to 100mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (LTC1844-SD)",
          "symbol": "∆VLNR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 4,
          "max": 20,
          "conditions": "VIN = 2.2V to 6.5V, IL = 1mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (LTC1844-SD)",
          "symbol": "∆VLNR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 4,
          "max": 80,
          "conditions": "VIN = 1.6V to 6.5V, IL = 1mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (LTC1844-SD)",
          "symbol": "∆VLDR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 9,
          "max": 20,
          "conditions": "VIN = 2.2V, IOUT = 0mA to 150mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (LTC1844-SD)",
          "symbol": "∆VLDR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 9,
          "max": 50,
          "conditions": "VIN = 1.75V, IOUT = 0mA to 100mA; ● full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage (LTC1844-SD)",
          "symbol": "∆VDO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 45,
          "max": 75,
          "conditions": "IOUT = 50mA; ● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage (LTC1844-SD)",
          "symbol": "∆VDO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 135,
          "max": 200,
          "conditions": "IOUT = 150mA; ● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "mA",
          "min": 160,
          "typ": null,
          "max": 350,
          "conditions": "● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SHDN Input Threshold",
          "symbol": "VSHDN",
          "kind": "electrical",
          "unit": "V",
          "min": 0.35,
          "typ": 0.65,
          "max": 0.9,
          "conditions": "● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Exit Delay",
          "symbol": "tDELAY",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 70,
          "max": 100,
          "conditions": "CBP = 0.01µF, COUT = 1µF, No load",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Exit Delay",
          "symbol": "tDELAY",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "CBP = 0.01µF, COUT = 1µF, No load; ● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ADJ Pin Bias Current",
          "symbol": "IADJ",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 30,
          "max": 100,
          "conditions": "● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Reverse Leakage Current (LTC1844-SD)",
          "symbol": "IIRL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1000,
          "max": 1500,
          "conditions": "VIN = –5V, VOUT = 0V; ● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Reverse Leakage Current",
          "symbol": "IORL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 0.1,
          "conditions": "VIN = 0V, VOUT = VOUT(NOMINAL)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Reverse Leakage Current",
          "symbol": "IORL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "VIN = 0V, VOUT = VOUT(NOMINAL); ● full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Start-Up Overshoot",
          "symbol": "VOSH",
          "kind": "electrical",
          "unit": "%VOUT",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "RL = 1k, SHDN Rise Time ≤ 1µs",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (IN)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -7,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage SHDN, BYP, ADJ",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage OUT",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "OUT to IN",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -7,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Notes 2, 10",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10 sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "TJMAX = 125°C (as printed in order information block)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Measured thermal resistance, junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 125,
          "max": null,
          "conditions": "Topside copper 2500mm2, backside 2500mm2, board area 2500mm2; still air, 3/32in FR-4, one ounce copper",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Measured thermal resistance, junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "Topside copper 225mm2, backside 2500mm2, board area 2500mm2; still air, 3/32in FR-4, one ounce copper",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Measured thermal resistance, junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 135,
          "max": null,
          "conditions": "Topside copper 100mm2, backside 2500mm2, board area 2500mm2; still air, 3/32in FR-4, one ounce copper",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Measured thermal resistance, junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 150,
          "max": null,
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          "source_page": 10,
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        }
      ]
    }
  },
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  "discovery_triggers": [
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "visibility": {
    "public": true
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}