component
LP3907SQ-PJXIX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"slug": "lp3907sq-pjxix",
"title": "LP3907SQ-PJXIX",
"brief": "Texas Instruments DC-DC Converters, 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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"component": {
"mpn": "LP3907SQ-PJXIX",
"manufacturer": "Texas Instruments",
"package": "WQFN-24-EP(4x4)",
"pin_count": 25,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/lp3907",
"parts": {
"symbol": "lp3907sq-pjxix.kicad_sym",
"footprint": "lp3907sq-pjxix.kicad_mod",
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"distributor_links": {
"lcsc": "C2650270"
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"checked_at": "2026-09-26T23:30:36Z",
"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 supply for internal functions (VREF, BIAS, I2C, Logic); operational range 2.8V to 5.5V."
},
{
"number": "2",
"name": "EN_T",
"type": "input",
"description": "Enable input for preset power-on sequence; rising edge triggers power-up with programmable delay."
},
{
"number": "3",
"name": "nPOR",
"type": "output",
"description": "Open-drain power-on reset output for Buck1 and Buck2; pulled low when supply voltages invalid, 100kΩ external pullup required."
},
{
"number": "4",
"name": "GND_SW1",
"type": "power_in",
"description": "Buck1 NMOS power switch ground return."
},
{
"number": "5",
"name": "SW1",
"type": "power_out",
"description": "Buck1 switcher output pin; connect to external inductor for step-down conversion."
},
{
"number": "6",
"name": "VIN1",
"type": "power_in",
"description": "Power input for Buck1 from battery or DC source; 2.8V to 5.5V."
},
{
"number": "7",
"name": "ENSW1",
"type": "input",
"description": "Logic input to enable Buck1 switcher; HIGH enables operation."
},
{
"number": "8",
"name": "FB1",
"type": "input",
"description": "Buck1 feedback input terminal for output voltage regulation; compared against 0.5V internal reference."
},
{
"number": "9",
"name": "GND_C",
"type": "power_in",
"description": "Non-switching core ground for logic and reference circuits."
},
{
"number": "10",
"name": "AVDD",
"type": "power_in",
"description": "Analog power for Buck converter error amplifiers; 2.8V to 5.5V."
},
{
"number": "11",
"name": "FB2",
"type": "input",
"description": "Buck2 feedback input terminal for output voltage regulation; compared against 0.5V internal reference."
},
{
"number": "12",
"name": "ENSW2",
"type": "input",
"description": "Logic input to enable Buck2 switcher; HIGH enables operation."
},
{
"number": "13",
"name": "VIN2",
"type": "power_in",
"description": "Power input for Buck2 from battery or DC source; 2.8V to 5.5V."
},
{
"number": "14",
"name": "SW2",
"type": "power_out",
"description": "Buck2 switcher output pin; connect to external inductor for step-down conversion."
},
{
"number": "15",
"name": "GND_SW2",
"type": "power_in",
"description": "Buck2 NMOS power switch ground return."
},
{
"number": "16",
"name": "SDA",
"type": "bidirectional",
"description": "I2C serial data line; open-drain bidirectional, external pullup resistor required."
},
{
"number": "17",
"name": "SCL",
"type": "input",
"description": "I2C serial clock input; logic signal, external pullup resistor required."
},
{
"number": "18",
"name": "GND_L",
"type": "power_in",
"description": "LDO ground return."
},
{
"number": "19",
"name": "VINLDO1",
"type": "power_in",
"description": "Power input for LDO1 from battery or DC source; 1.74V to 5.5V with minimum 0.3V headroom above output."
},
{
"number": "20",
"name": "LDO1",
"type": "power_out",
"description": "LDO1 regulated output; programmable 1.0V to 3.5V, 300mA maximum output current, 30mV typical dropout voltage."
},
{
"number": "21",
"name": "ENLDO1",
"type": "input",
"description": "Logic input to enable LDO1; HIGH enables regulation."
},
{
"number": "22",
"name": "ENLDO2",
"type": "input",
"description": "Logic input to enable LDO2; HIGH enables regulation."
},
{
"number": "23",
"name": "LDO2",
"type": "power_out",
"description": "LDO2 regulated output; programmable 1.0V to 3.5V, 300mA maximum output current, 30mV typical dropout voltage."
},
{
"number": "24",
"name": "VINLDO2",
"type": "power_in",
"description": "Power input for LDO2 from battery or DC source; 1.74V to 5.5V with minimum 0.3V headroom above output."
},
{
"number": "25",
"name": "DAP",
"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": [
"exposed pad 25 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 61,
"cost_usd": 0.4949,
"at": "2026-09-26T23:30:18"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/lp3907",
"pages": 61,
"sha256": "28f50063d0d77651",
"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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"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "WQFN-24-EP(4x4)",
"Category": "Power Management (PMIC)",
"Pins": "25"
}
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"variants": [],
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"discovery_pitch": "LP3907SQ-PJXIX (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
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