component
LM26480QSQX-8D
Public Made by Adomby adom
Texas Instruments Linear Voltage Regulators (LDO), WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "lm26480qsqx-8d",
"title": "LM26480QSQX-8D",
"brief": "Texas Instruments Linear Voltage Regulators (LDO), WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"lm26480qsqx-8d",
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"component": {
"mpn": "LM26480QSQX-8D",
"manufacturer": "Texas Instruments",
"package": "WQFN-24-EP(4x4)",
"pin_count": 25,
"category": "Power Supply Chip",
"subcategory": "Linear Voltage Regulators (LDO)",
"datasheet": "https://www.ti.com/cn/lit/gpn/lm26480-q1",
"parts": {
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"distributor_links": {
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"checked_at": "2026-10-11T23:19:43Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
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"mouser": {
"pn": null,
"status": "no match"
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},
"pins": [
{
"number": "1",
"name": "VINLDO12",
"type": "power_in",
"description": "Analog power input for internal functions (VREF, BIAS, I2C, logic), which is always powered per the power block operation table."
},
{
"number": "2",
"name": "SYNC",
"type": "input",
"description": "Frequency synchronization input that allows an external clock to synchronize the internal oscillator; it defaults to off and must be grounded when not used."
},
{
"number": "3",
"name": "NPOR",
"type": "output",
"description": "Open-drain power-on reset output for Buck1 and Buck2 that is pulled to ground when either supply is not good and needs an external 100 kΩ pullup."
},
{
"number": "4",
"name": "GND_SW1",
"type": "power_in",
"description": "Buck1 NMOS power ground."
},
{
"number": "5",
"name": "SW1",
"type": "output",
"description": "Buck1 switcher output pin."
},
{
"number": "6",
"name": "VIN1",
"type": "power_in",
"description": "Power input from a DC source or battery to Buck1, which can be at 0 V when Buck1 is disabled."
},
{
"number": "7",
"name": "ENSW1",
"type": "input",
"description": "Enable pin for Buck1; a logic HIGH enables Buck1 and the pin cannot be left floating."
},
{
"number": "8",
"name": "FB1",
"type": "input",
"description": "Buck1 input feedback terminal."
},
{
"number": "9",
"name": "GND_C",
"type": "power_in",
"description": "Non-switching core ground pin."
},
{
"number": "10",
"name": "AVDD",
"type": "power_in",
"description": "Analog power for the buck converters, which is always powered per the power block operation table."
},
{
"number": "11",
"name": "FB2",
"type": "input",
"description": "Buck2 input feedback terminal."
},
{
"number": "12",
"name": "ENSW2",
"type": "input",
"description": "Enable pin for Buck2; a logic HIGH enables Buck2 and the pin cannot be left floating."
},
{
"number": "13",
"name": "VIN2",
"type": "power_in",
"description": "Power input from a DC source or battery to Buck2, which can be at 0 V when Buck2 is disabled."
},
{
"number": "14",
"name": "SW2",
"type": "output",
"description": "Buck2 switcher output pin."
},
{
"number": "15",
"name": "GND_SW2",
"type": "power_in",
"description": "Buck2 NMOS power ground."
},
{
"number": "16",
"name": "ENLDO2",
"type": "input",
"description": "LDO2 enable pin; a logic HIGH enables LDO2 and the pin cannot be left floating."
},
{
"number": "17",
"name": "ENLDO1",
"type": "input",
"description": "LDO1 enable pin; a logic HIGH enables LDO1 and the pin cannot be left floating."
},
{
"number": "18",
"name": "GND_L",
"type": "power_in",
"description": "LDO ground."
},
{
"number": "19",
"name": "VINLDO1",
"type": "power_in",
"description": "Power input from a DC source or battery to LDO1; minimum VIN is 1.74 V when LDO1 is enabled."
},
{
"number": "20",
"name": "LDO1",
"type": "power_out",
"description": "LDO1 output."
},
{
"number": "21",
"name": "FBL1",
"type": "input",
"description": "LDO1 feedback terminal."
},
{
"number": "22",
"name": "FBL2",
"type": "input",
"description": "LDO2 feedback terminal."
},
{
"number": "23",
"name": "LDO2",
"type": "power_out",
"description": "LDO2 output."
},
{
"number": "24",
"name": "VINLDO2",
"type": "power_in",
"description": "Power input from a DC source or battery to LDO2; minimum VIN is 1.74 V when LDO2 is enabled."
},
{
"number": "25",
"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: Pin 2 SYNC is typed 'G/(D)' in the datasheet (ground/digital). It was mapped to KiCad 'input' becaus; Pin 3 NPOR is an open-drain output. KiCad has no open-drain class, so it was mapped to 'output'; an ; Pin names in the Pin Functions table (LDO1, LDO2, FBL1, FBL2, GND_L) differ from the schematic label",
"exposed pad 25 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 8,
"cost_usd": 0.0561,
"at": "2026-10-11T23:19:27"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/lm26480-q1",
"pages": 42,
"sha256": "54ee9b099cf1e688",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"seat": "z = 0",
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4,
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "WQFN-24-EP(4x4)",
"Category": "Power Supply Chip",
"Pins": "25"
}
},
"variants": [],
"sections": [
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"discovery_pitch": "LM26480QSQX-8D (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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