component
TPS65251-2RHAR
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
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{
"schema_version": 1,
"type": "component",
"slug": "tps65251-2rhar",
"title": "TPS65251-2RHAR",
"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)",
"tps65251-2rhar",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TPS65251-2RHAR",
"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": "tps65251-2rhar.kicad_sym",
"footprint": "tps65251-2rhar.kicad_mod",
"model_3d": "tps65251-2rhar-hero.glb",
"model_3d_plain": "tps65251-2rhar.glb",
"model_3d_step": "tps65251-2rhar-etched.step",
"model_3d_step_plain": "tps65251-2rhar.step",
"lbr": "tps65251-2rhar.lbr"
},
"distributor_links": {
"lcsc": "C702321",
"digikey": "TPS65251-2RHAR-ND",
"mouser": "595-TPS65251-2RHAR"
},
"distributor_check": {
"checked_at": "2026-10-10T18:01:46Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "TPS65251-2RHAR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-TPS65251-2RHAR",
"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": "Compensation for Buck 3; a series RC circuit on this pin completes the compensation circuit of the converter."
},
{
"number": "4",
"name": "FB3",
"type": "input",
"description": "Feedback input for Buck 3; connect a divider set to 0.8 V from the converter output to ground."
},
{
"number": "5",
"name": "SYNC",
"type": "input",
"description": "Synchronous clock input; connect to GND when not used."
},
{
"number": "6",
"name": "ROSC",
"type": "input",
"description": "Oscillator set; this resistor sets the internal autonomous clock frequency and should be about 70% of the external clock frequency when external synchronization is used."
},
{
"number": "7",
"name": "FB1",
"type": "input",
"description": "Feedback pin for Buck 1; connect a divider set to 0.8 V from the converter output to ground."
},
{
"number": "8",
"name": "COMP1",
"type": "output",
"description": "Compensation pin for Buck 1; a series RC circuit on this pin completes the compensation circuit of the converter."
},
{
"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 signal disables it, and if left open a weak internal pull-up to V3V enables it automatically."
},
{
"number": "12",
"name": "BST1",
"type": "input",
"description": "Bootstrap capacitor pin for Buck 1; fit a 47-nF ceramic capacitor from this pin to the switching node."
},
{
"number": "13",
"name": "VIN1",
"type": "input",
"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": "input",
"description": "Input supply for Buck 2; fit a 10-µF ceramic capacitor close to this pin."
},
{
"number": "19",
"name": "BST2",
"type": "input",
"description": "Bootstrap capacitor 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 signal disables it, and if left open a weak internal pull-up to V3V enables it automatically."
},
{
"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": "Compensation pin for Buck 2; a series RC circuit on this pin completes the compensation circuit of the converter."
},
{
"number": "24",
"name": "FB2",
"type": "input",
"description": "Feedback input for Buck 2; connect a divider set to 0.8 V from the converter output to ground."
},
{
"number": "25",
"name": "LOW_P",
"type": "input",
"description": "Low-power operation mode input (active-high) 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; polarity is factory selectable with active-high as the default."
},
{
"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; the recommended VIN input operating voltage is 4.5 V to 18 V."
},
{
"number": "33",
"name": "VIN",
"type": "power_in",
"description": "Input supply pin; the recommended VIN input operating voltage is 4.5 V to 18 V."
},
{
"number": "34",
"name": "VIN",
"type": "power_in",
"description": "Input supply pin; the recommended VIN input operating voltage is 4.5 V to 18 V."
},
{
"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": "input",
"description": "Input supply for Buck 3; fit a 10-µF ceramic capacitor close to this pin."
},
{
"number": "39",
"name": "BST3",
"type": "input",
"description": "Bootstrap capacitor 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 signal disables it, and if left open a weak internal pull-up to V3V enables it automatically."
},
{
"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 as 'PAD' in Table 5-1, 'Power pad. Connect to ground.') has no numeric; Pin configuration and pin functions are given for the TPS65251-1/-2/-3 family on one shared RHA40 dr; Pins 14/15, 16/17, 32/33/34 and 36/37 share one name and one function in the datasheet, so the same ",
"exposed pad 41 added from the footprint"
],
"pages_sent": 9,
"cost_usd": 0.0834,
"at": "2026-10-10T18:01:27"
},
"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": [
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"file": "tps65251-2rhar.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": "2026-10-10",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tps65251-2rhar-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": "e61db4f90f14f70cef30eabf2f31e3b500e0662ed397e4af0a6ea37f45f62dbe",
"checked": "2026-10-10",
"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": [
"tps65251-2rhar"
],
"discovery_pitch": "TPS65251-2RHAR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
},
"files": [
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"viewers/symbol.html",
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}