component
TPS65721RSNR
Public Made by Adomby adom
Texas Instruments Power Management - Specialized, QFN-32-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": "tps65721rsnr",
"title": "TPS65721RSNR",
"brief": "Texas Instruments Power Management - Specialized, QFN-32-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",
"tags": [
"component",
"power management (pmic)",
"tps65721rsnr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TPS65721RSNR",
"manufacturer": "Texas Instruments",
"package": "QFN-32-EP(4x4)",
"pin_count": 33,
"category": "Power Management (PMIC)",
"subcategory": "Power Management - Specialized",
"datasheet": "https://www.ti.com/cn/lit/gpn/tps65721",
"parts": {
"symbol": "tps65721rsnr.kicad_sym",
"footprint": "tps65721rsnr.kicad_mod",
"model_3d": "tps65721rsnr-hero.glb",
"model_3d_plain": "tps65721rsnr.glb",
"model_3d_step": "tps65721rsnr-etched.step",
"model_3d_step_plain": "tps65721rsnr.step",
"lbr": "tps65721rsnr.lbr"
},
"distributor_links": {
"lcsc": "C2156040",
"digikey": "296-25360-2-ND",
"mouser": "595-TPS65721RSNR"
},
"distributor_check": {
"checked_at": "2026-10-08T20:52:01Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-25360-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-TPS65721RSNR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "FB_LDO1",
"type": "input",
"description": "Feedback input for LDO1, which sets the LDO1 output regulation; absolute maximum voltage on FB_LDO1 is -0.3 V to 3.6 V with respect to AGND."
},
{
"number": "2",
"name": "HOLD_LDO1",
"type": "input",
"description": "Power-on input for LDO1; when pulled HIGH, LDO1 is kept enabled after PB_IN is released HIGH."
},
{
"number": "3",
"name": "THRESHOLD",
"type": "input",
"description": "Input voltage to the reset comparator; when the voltage falls below the threshold, the RESET output is actively pulled LOW."
},
{
"number": "4",
"name": "GPIO3",
"type": "bidirectional",
"description": "General purpose I/O or 5-mA current source; GPIOx pins are limited to -0.3 V to VSYS with respect to AGND."
},
{
"number": "5",
"name": "GPIO2",
"type": "bidirectional",
"description": "General purpose I/O or 5-mA current source; GPIOx pins are limited to -0.3 V to VSYS with respect to AGND."
},
{
"number": "6",
"name": "GPIO1",
"type": "bidirectional",
"description": "General purpose I/O; GPIOx pins are limited to -0.3 V to VSYS with respect to AGND."
},
{
"number": "7",
"name": "GPIO0",
"type": "bidirectional",
"description": "General purpose I/O; GPIOx pins are limited to -0.3 V to VSYS with respect to AGND."
},
{
"number": "8",
"name": "SCLK",
"type": "input",
"description": "Clock input for the I2C interface."
},
{
"number": "9",
"name": "NC",
"type": "unconnected",
"description": "Not connected; shown as NC in the top-view pin drawing and not listed in the pin function table."
},
{
"number": "10",
"name": "NC",
"type": "unconnected",
"description": "Not connected; shown as NC in the top-view pin drawing and not listed in the pin function table."
},
{
"number": "11",
"name": "MODE",
"type": "input",
"description": "Pull HIGH to force the DCDC1 converter into PWM mode."
},
{
"number": "12",
"name": "SDAT",
"type": "bidirectional",
"description": "Data line for the I2C interface."
},
{
"number": "13",
"name": "INT",
"type": "output",
"description": "Open-drain interrupt output."
},
{
"number": "14",
"name": "RESET",
"type": "output",
"description": "Open-drain output of the reset generator; it goes active LOW when the voltage at THRESHOLD falls below the threshold voltage."
},
{
"number": "15",
"name": "PB_IN",
"type": "input",
"description": "Push-button input; turns on DCDC1 and LDO1 if pulled to GND."
},
{
"number": "16",
"name": "ISET",
"type": "input",
"description": "Connect a resistor from this pin to GND to set the fast-charge current; the valid resistor range is 1500 Ω to 11.25 kΩ."
},
{
"number": "17",
"name": "AC",
"type": "input",
"description": "Input power for the power manager; connect to external DC supply, with recommended input voltage 4.35 V to 28 V."
},
{
"number": "18",
"name": "AC",
"type": "input",
"description": "Input power for the power manager; connect to external DC supply, with recommended input voltage 4.35 V to 28 V."
},
{
"number": "19",
"name": "SYS",
"type": "output",
"description": "System voltage output of the power path manager and power input for step-down converter DCDC1; recommended VSYS is 2.2 V to 5.6 V."
},
{
"number": "20",
"name": "SYS",
"type": "output",
"description": "System voltage output of the power path manager and power input for step-down converter DCDC1; recommended VSYS is 2.2 V to 5.6 V."
},
{
"number": "21",
"name": "BAT",
"type": "bidirectional",
"description": "Connect to battery + terminal; average current into and out of BAT is limited to 300 mA."
},
{
"number": "22",
"name": "BAT",
"type": "bidirectional",
"description": "Connect to battery + terminal; average current into and out of BAT is limited to 300 mA."
},
{
"number": "23",
"name": "L1",
"type": "output",
"description": "Switch output of step-down converter DCDC1; use an inductor of 2.2 µH to 4.7 µH."
},
{
"number": "24",
"name": "PGND",
"type": "power_in",
"description": "Power ground."
},
{
"number": "25",
"name": "HOLD_DCDC1",
"type": "input",
"description": "Power-on input for DCDC1; when pulled HIGH, the DC-DC converter is kept enabled after PB_IN is released HIGH."
},
{
"number": "26",
"name": "FB_DCDC1",
"type": "input",
"description": "Feedback input of the DCDC1 step-down converter."
},
{
"number": "27",
"name": "TS",
"type": "input",
"description": "Connect a thermistor from this pin to GND for battery temperature monitoring; absolute maximum voltage is -0.3 V to 3.6 V with respect to AGND."
},
{
"number": "28",
"name": "AGND",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "29",
"name": "GND",
"type": "power_in",
"description": "Connect to AGND and PGND."
},
{
"number": "30",
"name": "VINLDO1",
"type": "input",
"description": "Input voltage for LDO1; recommended range is 1.8 V to VSYS."
},
{
"number": "31",
"name": "VLDO1",
"type": "output",
"description": "Output voltage from LDO1; recommended range is 0.8 V to 3.3 V with output current up to 200 mA."
},
{
"number": "32",
"name": "NC",
"type": "unconnected",
"description": "Not connected; shown as NC in the top-view pin drawing and not listed in the pin function table."
},
{
"number": "33",
"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 'Pin Functions—WQFN' table on page 6 does not list pins 9, 10 and 32. They are marked NC in the ; The exposed thermal pad (ThermalPad, 'Connect to GND') has no pin number printed, so it is not enter; Pages 8 onward were not provided (17 of 70 pages). Pin data comes from the page 6 table only; no ele",
"exposed pad 33 added from the footprint"
],
"pages_sent": 17,
"cost_usd": 0.1172,
"at": "2026-10-08T20:51:32"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/tps65721",
"pages": 70,
"sha256": "abb2b61d6cfdc4b7",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "tps65721rsnr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tps65721rsnr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "6ac2c4fde71d7d78949103b0372e13b1d55bcf20521ed98a7fd16c4d12b08c5f",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "QFN-32-EP(4x4)",
"Category": "Power Management (PMIC)",
"Pins": "33"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"tps65721rsnr"
],
"discovery_pitch": "TPS65721RSNR (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",
"tps65721rsnr.kicad_sym",
"tps65721rsnr.kicad_mod",
"tps65721rsnr.glb",
"tps65721rsnr.step",
"tps65721rsnr.lbr",
"docs/hero.png",
"docs/tps65721rsnr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
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"visibility": {
"public": true
}
}