component
TPS65251-1RHAR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423
{
"schema_version": 1,
"type": "component",
"slug": "tps65251-1rhar",
"title": "TPS65251-1RHAR",
"brief": "Texas Instruments DC-DC Converters, VQFN-40-EP(6x6). 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)",
"tps65251-1rhar",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TPS65251-1RHAR",
"manufacturer": "Texas Instruments",
"package": "VQFN-40-EP(6x6)",
"pin_count": 41,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/tps65251-3",
"parts": {
"symbol": "tps65251-1rhar.kicad_sym",
"footprint": "tps65251-1rhar.kicad_mod",
"model_3d": "tps65251-1rhar-hero.glb",
"model_3d_plain": "tps65251-1rhar.glb",
"model_3d_step": "tps65251-1rhar-etched.step",
"model_3d_step_plain": "tps65251-1rhar.step",
"lbr": "tps65251-1rhar.lbr"
},
"distributor_links": {
"lcsc": "C702320",
"digikey": "296-49345-2-ND",
"mouser": "595-TPS65251-1RHAR"
},
"distributor_check": {
"checked_at": "2026-10-08T19:08:05Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-49345-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-TPS65251-1RHAR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "RLIM3",
"type": "input",
"description": "Current-limit setting for Buck 3; a resistor from this pin to ground sets the peak current limit on the output inductor."
},
{
"number": "2",
"name": "SS3",
"type": "input",
"description": "Soft-start pin for Buck 3; a small ceramic capacitor on this pin sets the converter soft-start time."
},
{
"number": "3",
"name": "COMP3",
"type": "output",
"description": "Buck 3 compensation pin; a series RC circuit on this pin completes the converter compensation network."
},
{
"number": "4",
"name": "FB3",
"type": "input",
"description": "Buck 3 feedback input; connect a divider set to 0.8 V from the converter output to ground."
},
{
"number": "5",
"name": "SYNC",
"type": "input",
"description": "Synchronous clock input for the oscillator; connect to GND when not used."
},
{
"number": "6",
"name": "ROSC",
"type": "input",
"description": "Oscillator set pin; the resistor sets the internal clock frequency, and if external synchronization is used it should be set to about 70% of the external clock frequency."
},
{
"number": "7",
"name": "FB1",
"type": "input",
"description": "Buck 1 feedback pin; connect a divider set to 0.8 V from the converter output to ground."
},
{
"number": "8",
"name": "COMP1",
"type": "output",
"description": "Buck 1 compensation pin; a series RC circuit on this pin completes the converter compensation network."
},
{
"number": "9",
"name": "SS1",
"type": "input",
"description": "Soft-start pin for Buck 1; a small ceramic capacitor on this pin sets the converter soft-start time."
},
{
"number": "10",
"name": "RLIM1",
"type": "input",
"description": "Current-limit setting pin for Buck 1; a resistor from this pin to ground sets the peak current limit on the output inductor."
},
{
"number": "11",
"name": "EN1",
"type": "input",
"description": "Enable pin for Buck 1; a low level disables the converter, an open pin is pulled up weakly to V3V for automatic enable, and a small ceramic capacitor to ground adds a delayed start-up."
},
{
"number": "12",
"name": "BST1",
"type": "input",
"description": "Bootstrap pin for Buck 1; fit a 47-nF ceramic capacitor from this pin to the switching node."
},
{
"number": "13",
"name": "VIN1",
"type": "power_in",
"description": "Input supply for Buck 1; fit a 10-µF ceramic capacitor close to this pin."
},
{
"number": "14",
"name": "LX1",
"type": "output",
"description": "Switching node for Buck 1."
},
{
"number": "15",
"name": "LX1",
"type": "output",
"description": "Switching node for Buck 1."
},
{
"number": "16",
"name": "LX2",
"type": "output",
"description": "Switching node for Buck 2."
},
{
"number": "17",
"name": "LX2",
"type": "output",
"description": "Switching node for Buck 2."
},
{
"number": "18",
"name": "VIN2",
"type": "power_in",
"description": "Input supply for Buck 2; fit a 10-µF ceramic capacitor close to this pin."
},
{
"number": "19",
"name": "BST2",
"type": "input",
"description": "Bootstrap pin for Buck 2; fit a 47-nF ceramic capacitor from this pin to the switching node."
},
{
"number": "20",
"name": "EN2",
"type": "input",
"description": "Enable pin for Buck 2; a low level disables the converter, an open pin is pulled up weakly to V3V for automatic enable, and a small ceramic capacitor to ground adds a delayed start-up."
},
{
"number": "21",
"name": "RLIM2",
"type": "input",
"description": "Current-limit setting for Buck 2; a resistor from this pin to ground sets the peak current limit on the output inductor."
},
{
"number": "22",
"name": "SS2",
"type": "input",
"description": "Soft-start pin for Buck 2; a small ceramic capacitor on this pin sets the converter soft-start time."
},
{
"number": "23",
"name": "COMP2",
"type": "output",
"description": "Buck 2 compensation pin; a series RC circuit on this pin completes the converter compensation network."
},
{
"number": "24",
"name": "FB2",
"type": "input",
"description": "Buck 2 feedback input; connect a divider set to 0.8 V from the converter output to ground."
},
{
"number": "25",
"name": "LOW_P",
"type": "input",
"description": "Active-high low-power operation mode input for the TPS65251."
},
{
"number": "26",
"name": "GND",
"type": "power_in",
"description": "Ground pin."
},
{
"number": "27",
"name": "PGOOD",
"type": "output",
"description": "Power-good open-drain output, asserted after all converters are sequenced and within regulation; active-high by default, with polarity factory-selectable."
},
{
"number": "28",
"name": "V7V",
"type": "power_out",
"description": "Internal supply; connect a 10-µF ceramic capacitor from this pin to ground."
},
{
"number": "29",
"name": "V3V",
"type": "power_out",
"description": "Internal supply; connect a 3.3- to 10-µF ceramic capacitor from this pin to ground."
},
{
"number": "30",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; connect all GND pins and the power pad together."
},
{
"number": "31",
"name": "GND",
"type": "power_in",
"description": "Ground pin."
},
{
"number": "32",
"name": "VIN",
"type": "power_in",
"description": "Input supply pin (one of three VIN pins that share the input supply)."
},
{
"number": "33",
"name": "VIN",
"type": "power_in",
"description": "Input supply pin (one of three VIN pins that share the input supply)."
},
{
"number": "34",
"name": "VIN",
"type": "power_in",
"description": "Input supply pin (one of three VIN pins that share the input supply)."
},
{
"number": "35",
"name": "GND",
"type": "power_in",
"description": "Ground pin."
},
{
"number": "36",
"name": "LX3",
"type": "output",
"description": "Switching node for Buck 3."
},
{
"number": "37",
"name": "LX3",
"type": "output",
"description": "Switching node for Buck 3."
},
{
"number": "38",
"name": "VIN3",
"type": "power_in",
"description": "Input supply for Buck 3; fit a 10-µF ceramic capacitor close to this pin."
},
{
"number": "39",
"name": "BST3",
"type": "input",
"description": "Bootstrap pin for Buck 3; fit a 47-nF ceramic capacitor from this pin to the switching node."
},
{
"number": "40",
"name": "EN3",
"type": "input",
"description": "Enable pin for Buck 3; a low level disables the converter, an open pin is pulled up weakly to V3V for automatic enable, and a small ceramic capacitor to ground adds a delayed start-up."
},
{
"number": "41",
"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 exposed power pad (listed in Table 5-1 as 'PAD', 'Power pad. Connect to ground.') has no printed; Pin types are mapped to KiCad ERC classes from the datasheet's I/O column: supply inputs (VIN1-3, VI; Table 5-1 lists multiple pins under one signal name (LX1 14/15, LX2 16/17, VIN 32-34, LX3 36/37). Ea",
"exposed pad 41 added from the footprint"
],
"pages_sent": 9,
"cost_usd": 0.0876,
"at": "2026-10-08T19:07:33"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/tps65251-3",
"pages": 47,
"sha256": "ccc6de3dc205a000",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 41,
"described": 41,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "tps65251-1rhar.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
6,
1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tps65251-1rhar-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
6,
1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "745895e1d3918d71dc2593e74372f471f9a82e4ee45d1a18ac328d7c3cb5e79d",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "VQFN-40-EP(6x6)",
"Category": "Power Management (PMIC)",
"Pins": "41"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"tps65251-1rhar"
],
"discovery_pitch": "TPS65251-1RHAR (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",
"tps65251-1rhar.kicad_sym",
"tps65251-1rhar.kicad_mod",
"tps65251-1rhar.glb",
"tps65251-1rhar.step",
"tps65251-1rhar.lbr",
"docs/hero.png",
"docs/tps65251-1rhar-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"tps65251-1rhar-hero.glb",
"tps65251-1rhar-hero.overlay.json"
],
"visibility": {
"public": true
}
}