component
LP3906SQ-JXXI
Public Made by Adomby adom
Texas Instruments Battery Management, WQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"description": "Texas Instruments Battery Management, WQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management (pmic)",
"lp3906sq-jxxi",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"lp3906sq-jxxi.step",
"lp3906sq-jxxi.lbr",
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"lp3906sq-jxxi-hero.overlay.json",
"lp3906sq-jxxi-etched.glb"
],
"component": {
"mpn": "LP3906SQ-JXXI",
"manufacturer": "Texas Instruments",
"package": "WQFN-24-EP(4x5)",
"pin_count": 25,
"category": "Power Management (PMIC)",
"subcategory": "Battery Management",
"datasheet": "https://www.ti.com/lit/ds/symlink/lp3906.pdf",
"parts": {
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"lbr": "lp3906sq-jxxi.lbr"
},
"distributor_links": {
"lcsc": "C201539"
},
"distributor_check": {
"checked_at": "2026-11-06T00:41:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VIN2",
"type": "power_in",
"description": "Power in from either DC source or Battery to Buck 2."
},
{
"number": "2",
"name": "SW2",
"type": "output",
"description": "Buck2 switcher output pin."
},
{
"number": "3",
"name": "GND_SW2",
"type": "power_in",
"description": "Buck2 NMOS Power Ground."
},
{
"number": "4",
"name": "GND_C",
"type": "power_in",
"description": "Non switching core ground pin."
},
{
"number": "5",
"name": "GND_SW1",
"type": "power_in",
"description": "Buck1 NMOS Power Ground."
},
{
"number": "6",
"name": "SW1",
"type": "output",
"description": "Buck1 switcher output pin."
},
{
"number": "7",
"name": "VIN1",
"type": "power_in",
"description": "Power in from either DC source or Battery to buck 1."
},
{
"number": "8",
"name": "SDA",
"type": "bidirectional",
"description": "I2C Data (Bidirectional)."
},
{
"number": "9",
"name": "SCL",
"type": "input",
"description": "I2C Clock."
},
{
"number": "10",
"name": "EN_T",
"type": "input",
"description": "Enable for preset power on sequence."
},
{
"number": "11",
"name": "FB1",
"type": "input",
"description": "Buck1 input feedback terminal."
},
{
"number": "12",
"name": "AVDD",
"type": "power_in",
"description": "Analog Power for Buck converters."
},
{
"number": "13",
"name": "VINLDO1",
"type": "power_in",
"description": "Power in from either DC source or Battery to input terminal of LDO1."
},
{
"number": "14",
"name": "LDO1",
"type": "power_out",
"description": "LDO1 Output."
},
{
"number": "15",
"name": "ENLDO1",
"type": "input",
"description": "LDO1 enable pin, a logic HIGH enables the LDO1."
},
{
"number": "16",
"name": "ENLDO2",
"type": "input",
"description": "LDO2 enable pin, a logic HIGH enables the LDO2."
},
{
"number": "17",
"name": "GND_L",
"type": "power_in",
"description": "LDO Ground."
},
{
"number": "18",
"name": "LDO2",
"type": "power_out",
"description": "LDO2 Output."
},
{
"number": "19",
"name": "VINLDO2",
"type": "power_in",
"description": "Power in from either DC source or battery to input terminal to LDO2."
},
{
"number": "20",
"name": "VinLDO12",
"type": "power_in",
"description": "Analog Power for Internal Functions (VREF, BIAS, I2C, Logic)."
},
{
"number": "21",
"name": "FB2",
"type": "input",
"description": "Buck2 input feedback terminal."
},
{
"number": "22",
"name": "ENSW1",
"type": "input",
"description": "Enable Pin for Buck1 switcher, a logic HIGH enables Buck1."
},
{
"number": "23",
"name": "SYNC",
"type": "input",
"description": "Frequency Synchronization pin which allows the user to connect an external clock signal PLL to synchronize the PMIC internal oscillator."
},
{
"number": "24",
"name": "ENSW2",
"type": "input",
"description": "Enable Pin for Buck2 switcher, a logic HIGH enables Buck2."
},
{
"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: The requested hint is WQFN-24-EP(4x5), but the datasheet describes the package as 24-lead 5 x 4 x 0.; Pin descriptions are taken from the Pin Descriptions table on page 5. The DAP (exposed pad) is liste"
],
"pages_sent": 8,
"cost_usd": 0.0184,
"at": "2026-11-06T00:41:07"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/lp3906.pdf",
"pages": 47,
"sha256": "4315df9ad8029838",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"sha256": "dd34955bd2f41c7d5d4f45257df2b8077e42f694598de69e58ad55ad191eecae",
"checked": "2026-11-06",
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}
}