component
LP873220RHDRQ1
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VQFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "lp873220rhdrq1",
"title": "LP873220RHDRQ1",
"brief": "Texas Instruments DC-DC Converters, VQFN-28-EP(5x5). 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 (pmic)",
"lp873220rhdrq1",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "LP873220RHDRQ1",
"manufacturer": "Texas Instruments",
"package": "VQFN-28-EP(5x5)",
"pin_count": 29,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/lp873220-q1",
"parts": {
"symbol": "lp873220rhdrq1.kicad_sym",
"footprint": "lp873220rhdrq1.kicad_mod",
"model_3d": "lp873220rhdrq1-hero.glb",
"model_3d_plain": "lp873220rhdrq1.glb",
"model_3d_step": "lp873220rhdrq1-etched.step",
"model_3d_step_plain": "lp873220rhdrq1.step",
"lbr": "lp873220rhdrq1.lbr"
},
"distributor_links": {
"lcsc": "C701975",
"digikey": "296-LP873220RHDRQ1TR-ND",
"mouser": "595-LP873220RHDRQ1"
},
"distributor_check": {
"checked_at": "2026-10-08T19:56:13Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-LP873220RHDRQ1TR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-LP873220RHDRQ1",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VOUT_LDO0",
"type": "power_out",
"description": "Output of LDO0; leave the pin floating if LDO0 is not used."
},
{
"number": "2",
"name": "FB_B0",
"type": "input",
"description": "Positive output-voltage feedback (sense) input for Buck 0."
},
{
"number": "3",
"name": "FB_B1",
"type": "input",
"description": "Positive output-voltage feedback (sense) input for Buck 1."
},
{
"number": "4",
"name": "AGND",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "5",
"name": "VANA",
"type": "power_in",
"description": "Supply voltage for analog and digital blocks; must be connected to the same node as VIN_Bx, with a recommended range of 2.8 V to 5.5 V."
},
{
"number": "6",
"name": "EN",
"type": "input",
"description": "Programmable enable input for the regulators and GPOs; leave floating if not used, and the internal pull-down is enabled by default (EN_PD = 1)."
},
{
"number": "7",
"name": "VOUT_LDO1",
"type": "power_out",
"description": "Output of LDO1; leave the pin floating if LDO1 is not used."
},
{
"number": "8",
"name": "VIN_LDO1",
"type": "power_in",
"description": "Power input for LDO1; connect to VANA if LDO1 is not used. Recommended range 2.5 V to 5.5 V."
},
{
"number": "9",
"name": "nINT",
"type": "output",
"description": "Open-drain interrupt output, active low; connect to ground if not used."
},
{
"number": "10",
"name": "CLKIN",
"type": "bidirectional",
"description": "External clock input, alternatively configurable as general-purpose digital output GPO2; leave floating if not used."
},
{
"number": "11",
"name": "VIN_B1",
"type": "power_in",
"description": "Input for Buck 1; VIN_Bx pins are not connected internally and must be tied together externally and locally bypassed."
},
{
"number": "12",
"name": "VIN_B1",
"type": "power_in",
"description": "Input for Buck 1; VIN_Bx pins are not connected internally and must be tied together externally and locally bypassed."
},
{
"number": "13",
"name": "SW_B1",
"type": "power_out",
"description": "Buck 1 switch node; leave floating if Buck 1 is not used."
},
{
"number": "14",
"name": "SW_B1",
"type": "power_out",
"description": "Buck 1 switch node; leave floating if Buck 1 is not used."
},
{
"number": "15",
"name": "PGND_B1",
"type": "power_in",
"description": "Power ground for Buck 1."
},
{
"number": "16",
"name": "PGND_B1",
"type": "power_in",
"description": "Power ground for Buck 1."
},
{
"number": "17",
"name": "SCL",
"type": "input",
"description": "I2C serial clock input; connect a pull-up resistor, or connect to ground if the I2C interface is not used."
},
{
"number": "18",
"name": "SDA",
"type": "bidirectional",
"description": "I2C serial data input/output; connect a pull-up resistor, or connect to ground if the I2C interface is not used."
},
{
"number": "19",
"name": "SGND",
"type": "power_in",
"description": "Signal ground."
},
{
"number": "20",
"name": "PGND_B0",
"type": "power_in",
"description": "Power ground for Buck 0."
},
{
"number": "21",
"name": "PGND_B0",
"type": "power_in",
"description": "Power ground for Buck 0."
},
{
"number": "22",
"name": "SW_B0",
"type": "power_out",
"description": "Buck 0 switch node; leave floating if Buck 0 is not used."
},
{
"number": "23",
"name": "SW_B0",
"type": "power_out",
"description": "Buck 0 switch node; leave floating if Buck 0 is not used."
},
{
"number": "24",
"name": "VIN_B0",
"type": "power_in",
"description": "Input for Buck 0; VIN_Bx pins are not connected internally and must be tied together externally and locally bypassed."
},
{
"number": "25",
"name": "VIN_B0",
"type": "power_in",
"description": "Input for Buck 0; VIN_Bx pins are not connected internally and must be tied together externally and locally bypassed."
},
{
"number": "26",
"name": "GPO",
"type": "output",
"description": "General-purpose digital output; leave floating if not used."
},
{
"number": "27",
"name": "PGOOD",
"type": "output",
"description": "Power-good indication output; leave floating if not used."
},
{
"number": "28",
"name": "VIN_LDO0",
"type": "power_in",
"description": "Power input for LDO0; connect to VANA if LDO0 is not used. Recommended range 2.5 V to 5.5 V."
},
{
"number": "29",
"name": "THERMAL 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 exposed thermal pad is not a numbered pin in Table 5-1 (listed as 'Thermal Pad', no pin number) ; Table 5-1 lists grouped pins (e.g. '11, 12', '13, 14', '22, 23'); I split each into one entry per ph; Table 5-1 uses analog ('A') and ground/power codes that map to KiCad classes; FB_B0/FB_B1 (A) were m",
"exposed pad 29 added from the footprint"
],
"pages_sent": 17,
"cost_usd": 0.1125,
"at": "2026-10-08T19:55:50"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/lp873220-q1",
"pages": 78,
"sha256": "27969d2a778a9013",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 29,
"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "lp873220rhdrq1.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.92
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "lp873220rhdrq1-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.92
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "72e0efb642c0a43180c98dbbd1a5edc5da76963ef1d65d426fc2b55200980bc2",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "VQFN-28-EP(5x5)",
"Category": "Power Management (PMIC)",
"Pins": "29"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"lp873220rhdrq1"
],
"discovery_pitch": "LP873220RHDRQ1 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"lp873220rhdrq1.kicad_sym",
"lp873220rhdrq1.kicad_mod",
"lp873220rhdrq1.glb",
"lp873220rhdrq1.step",
"lp873220rhdrq1.lbr",
"docs/hero.png",
"docs/lp873220rhdrq1-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"lp873220rhdrq1-hero.glb",
"lp873220rhdrq1-hero.overlay.json"
],
"visibility": {
"public": true
}
}