component
TPS51221RTVR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
tps51221rtvr: specified limits as data (metadata.characteristics, 59 rows from the datasheet)
22dcb59
16d ago
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090
{
"schema_version": 1,
"type": "component",
"slug": "tps51221rtvr",
"title": "TPS51221RTVR",
"brief": "Texas Instruments DC-DC Converters, WQFN-32-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)",
"tps51221rtvr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TPS51221RTVR",
"manufacturer": "Texas Instruments",
"package": "WQFN-32-EP(5x5)",
"pin_count": 33,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/tps51221",
"parts": {
"symbol": "tps51221rtvr.kicad_sym",
"footprint": "tps51221rtvr.kicad_mod",
"model_3d": "tps51221rtvr-hero.glb",
"model_3d_plain": "tps51221rtvr.glb",
"model_3d_step": "tps51221rtvr-etched.step",
"model_3d_step_plain": "tps51221rtvr.step",
"lbr": "tps51221rtvr.lbr"
},
"distributor_links": {
"lcsc": "C2860696",
"digikey": "296-22888-2-ND",
"mouser": "595-TPS51221RTVR"
},
"distributor_check": {
"checked_at": "2026-10-08T23:12:43Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-22888-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-TPS51221RTVR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "DRVH1",
"type": "output",
"description": "Channel 1 high-side MOSFET gate driver output, source 1.7 Ω and sink 1.0 Ω, SW-node referenced floating driver whose drive voltage equals the VBST-to-SW voltage."
},
{
"number": "2",
"name": "V5SW",
"type": "power_in",
"description": "VREG5 switchover supply input; when EN1 is high, PGOOD1 indicates good and V5SW is above 4.8 V, VREG5 switches over to V5SW, with an absolute maximum range of -1 V to 7 V."
},
{
"number": "3",
"name": "RF",
"type": "bidirectional",
"description": "Frequency-setting pin, where a resistor to signal GND sets the switching frequency and an external clock can be connected for synchronization; absolute maximum range is -0.3 V to 7 V."
},
{
"number": "4",
"name": "EN1",
"type": "input",
"description": "Channel 1 SMPS enable pin, where greater than 0.55 V and less than 6 V turns it on or it may be left floating, connect to GND to disable it, and the soft-start capacitor attaches here."
},
{
"number": "5",
"name": "PGOOD1",
"type": "output",
"description": "Channel 1 power-good window comparator output, where the applied voltage must be less than 6 V and a pull-up resistor of 100 kΩ to 1 MΩ is recommended."
},
{
"number": "6",
"name": "SKIPSEL1",
"type": "input",
"description": "Channel 1 skip-mode selection pin, where GND selects continuous conduction, VREF2 selects auto skip, VREG3 selects OOA auto skip with maximum 7 skips (use below 400 kHz), and VREG5 selects OOA auto skip with maximum 15 skips (use above 400 kHz)."
},
{
"number": "7",
"name": "CSP1",
"type": "bidirectional",
"description": "Channel 1 current-sense comparator positive input, where an RC network with X5R or X7R ceramic capacitor extracts the DCR voltage drop and 0.1 µF is a good starting value."
},
{
"number": "8",
"name": "CSN1",
"type": "input",
"description": "Channel 1 current-sense comparator negative input, which also powers the current-sense circuit for output voltages of 5 V or higher and is used for output discharge."
},
{
"number": "9",
"name": "VFB1",
"type": "input",
"description": "Channel 1 SMPS feedback input, to which the feedback resistor divider connects, referenced to signal GND, with absolute maximum range -0.3 V to 7 V."
},
{
"number": "10",
"name": "COMP1",
"type": "input",
"description": "Channel 1 loop compensation pin (error amplifier output), where R and optionally C connect from this pin to VREF2 for current-mode loop compensation."
},
{
"number": "11",
"name": "IMON1",
"type": "output",
"description": "Channel 1 current monitor output, where an RC filter is recommended."
},
{
"number": "12",
"name": "EN",
"type": "input",
"description": "Enable pin for the VREF2 and VREG5 linear regulators, where greater than 1.2 V and less than 6 V turns them on and connecting to GND disables them."
},
{
"number": "13",
"name": "VREF2",
"type": "output",
"description": "2-V reference output, which must be bypassed to signal GND with a 0.22 µF ceramic capacitor."
},
{
"number": "14",
"name": "TRIP",
"type": "input",
"description": "Over-current trip level and discharge mode selection pin, where GND selects VOCL-ULV with discharge on, VREF2 selects VOCL-ULV with discharge off, VREG3 selects VOCL-LV with discharge off, and VREG5 selects VOCL-LV with discharge on."
},
{
"number": "15",
"name": "COMP2",
"type": "input",
"description": "Channel 2 loop compensation pin (error amplifier output), where R and optionally C connect from this pin to VREF2 for current-mode loop compensation."
},
{
"number": "16",
"name": "VFB2",
"type": "input",
"description": "Channel 2 SMPS feedback input, to which the feedback resistor divider connects, referenced to signal GND, with absolute maximum range -0.3 V to 7 V."
},
{
"number": "17",
"name": "CSN2",
"type": "input",
"description": "Channel 2 current-sense comparator negative input, which also powers the current-sense circuit for output voltages of 5 V or higher and is used for output discharge."
},
{
"number": "18",
"name": "CSP2",
"type": "bidirectional",
"description": "Channel 2 current-sense comparator positive input, where an RC network with X5R or X7R ceramic capacitor extracts the DCR voltage drop and 0.1 µF is a good starting value."
},
{
"number": "19",
"name": "SKIPSEL2",
"type": "input",
"description": "Channel 2 skip-mode selection pin, where GND selects continuous conduction, VREF2 selects auto skip, VREG3 selects OOA auto skip with maximum 7 skips (use below 400 kHz), and VREG5 selects OOA auto skip with maximum 15 skips (use above 400 kHz)."
},
{
"number": "20",
"name": "PGOOD2",
"type": "output",
"description": "Channel 2 power-good window comparator output, where the applied voltage must be less than 6 V and a pull-up resistor of 100 kΩ to 1 MΩ is recommended."
},
{
"number": "21",
"name": "EN2",
"type": "input",
"description": "Channel 2 SMPS enable pin, where greater than 0.55 V and less than 6 V turns it on or it may be left floating, connect to GND to disable it, and the soft-start capacitor attaches here."
},
{
"number": "22",
"name": "VREG3",
"type": "power_out",
"description": "Always-alive 3.3 V, 10 mA low-dropout linear regulator output, which runs from VIN or from VREG5 when switched over and must be bypassed to signal GND with more than 1 µF ceramic."
},
{
"number": "23",
"name": "VIN",
"type": "power_in",
"description": "Supply input for the 5 V and 3.3 V linear regulators, typically connected to VBAT, with absolute maximum range -0.3 V to 30 V."
},
{
"number": "24",
"name": "DRVH2",
"type": "output",
"description": "Channel 2 high-side MOSFET gate driver output, source 1.7 Ω and sink 1.0 Ω, SW-node referenced floating driver whose drive voltage equals the VBST-to-SW voltage."
},
{
"number": "25",
"name": "SW2",
"type": "bidirectional",
"description": "Channel 2 high-side MOSFET gate driver return, referenced to the switching node."
},
{
"number": "26",
"name": "VBST2",
"type": "input",
"description": "Boot-strap supply input for the channel 2 high-side driver, requiring a capacitor of 0.1 µF or greater from this pin to SW2, with an optional Schottky diode from VREG5 permitted."
},
{
"number": "27",
"name": "DRVL2",
"type": "output",
"description": "Channel 2 low-side MOSFET gate driver output, source 1.3 Ω and sink 0.7 Ω, GND-referenced driver."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "29",
"name": "VREG5",
"type": "power_out",
"description": "5-V, 100-mA low-dropout linear regulator output, bypassed to power GND with a 10 µF ceramic capacitor, running from VIN and switching over to V5SW when 4.8 V or above is provided."
},
{
"number": "30",
"name": "DRVL1",
"type": "output",
"description": "Channel 1 low-side MOSFET gate driver output, source 1.3 Ω and sink 0.7 Ω, GND-referenced driver."
},
{
"number": "31",
"name": "VBST1",
"type": "input",
"description": "Boot-strap supply input for the channel 1 high-side driver, requiring a capacitor of 0.1 µF or greater from this pin to SW1, with an optional Schottky diode from VREG5 permitted."
},
{
"number": "32",
"name": "SW1",
"type": "bidirectional",
"description": "Channel 1 high-side MOSFET gate driver return, referenced to the switching node."
},
{
"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 exposed thermal pad (PowerPAD) is mentioned in the datasheet but is not a numbered terminal in t; Pin numbers come from the Terminal Functions table on page 9, which was cross-checked against the to; The datasheet classifies CSP1, CSP2, SW1, SW2 and RF as I/O; they are mapped to KiCad bidirectional.",
"exposed pad 33 added from the footprint"
],
"pages_sent": 9,
"cost_usd": 0.0916,
"at": "2026-10-08T23:11:43"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/tps51221",
"pages": 41,
"sha256": "d3ac05277fe67fc8",
"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": "tps51221rtvr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tps51221rtvr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f46bb8b4e37f8948e1332efcdf2e7ef9ee970d2ef2519764e7651ab362af6395",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "WQFN-32-EP(5x5)",
"Category": "Power Management (PMIC)",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "d3ac05277fe67fc8",
"rows": [
{
"name": "Supply voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 4.5,
"typ": null,
"max": 28,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply voltage V5SW I/O",
"symbol": "V5SW",
"kind": "recommended_operating",
"unit": "V",
"min": -0.8,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VBST1, VBST2 I/O voltage",
"symbol": "VBST1, VBST2",
"kind": "recommended_operating",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 33,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRVH1, DRVH2 I/O voltage",
"symbol": "DRVH1, DRVH2",
"kind": "recommended_operating",
"unit": "V",
"min": -4,
"typ": null,
"max": 33,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRVH1, DRVH2 voltage with respect to SW1, SW2",
"symbol": "DRVH1, DRVH2 (wrt SW1, 2)",
"kind": "recommended_operating",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "SW1, SW2 I/O voltage",
"symbol": "SW1, SW2",
"kind": "recommended_operating",
"unit": "V",
"min": -4,
"typ": null,
"max": 28,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "CSP1, CSP2, CSN1, CSN2 I/O voltage",
"symbol": "CSP1, CSP2, CSN1, CSN2",
"kind": "recommended_operating",
"unit": "V",
"min": -0.8,
"typ": null,
"max": 13,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "EN, EN1, EN2, VFB1, VFB2, TRIP, DRVL1, DRVL2, COMP1, COMP2, VREG5, RF, VREF2, PGOOD1, PGOOD2, SKIPSEL1, SKIPSEL2, IMON1 I/O voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VREG3 I/O voltage",
"symbol": "VREG3",
"kind": "recommended_operating",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 3.5,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating free-air temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VIN voltage range",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 30,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VBST1, VBST2 voltage range",
"symbol": "VBST1, VBST2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 35,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VBST1, VBST2 voltage with respect to SW",
"symbol": "VBST1, VBST2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "SW1, SW2 voltage range",
"symbol": "SW1, SW2",
"kind": "absolute_maximum",
"unit": "V",
"min": -5,
"typ": null,
"max": 30,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "CSP1, CSP2, CSN1, CSN2 voltage range",
"symbol": "CSP1, CSP2, CSN1, CSN2",
"kind": "absolute_maximum",
"unit": "V",
"min": -1,
"typ": null,
"max": 13.5,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "EN, EN1, EN2, VFB1, VFB2, TRIP, SKIPSEL1, SKIPSEL2 voltage range",
"symbol": "EN, EN1, EN2, VFB1, VFB2, TRIP, SKIPSEL1, SKIPSEL2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "V5SW voltage range",
"symbol": "V5SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -1,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "V5SW voltage to VREG5",
"symbol": "V5SW (to VREG5)",
"kind": "absolute_maximum",
"unit": "V",
"min": -7,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DRVH1, DRVH2 voltage range",
"symbol": "DRVH1, DRVH2",
"kind": "absolute_maximum",
"unit": "V",
"min": -5,
"typ": null,
"max": 35,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DRVH1, DRVH2 voltage with respect to SW",
"symbol": "DRVH1, DRVH2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DRVL1, DRVL2, COMP1, COMP2, VREG5, RF, VREF2, IMON1, PGOOD1, PGOOD2 voltage range",
"symbol": "DRVL1, DRVL2, COMP1, COMP2, VREG5, RF, VREF2, IMON1, PGOOD1, PGOOD2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VREG3 voltage range",
"symbol": "VREG3",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating junction temperature range",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "Tst",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Power rating, 32-pin RTV package",
"symbol": "",
"kind": "thermal",
"unit": "W",
"min": null,
"typ": null,
"max": 1.7,
"conditions": "TA < 25°C; 2 oz trace and copper pad with solder",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Derating factor above TA = 25°C, 32-pin RTV package",
"symbol": "",
"kind": "thermal",
"unit": "mW/°C",
"min": null,
"typ": 17,
"max": null,
"conditions": "Above TA = 25°C; 2 oz trace and copper pad with solder",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Power rating at TA = 85°C, 32-pin RTV package",
"symbol": "",
"kind": "thermal",
"unit": "W",
"min": null,
"typ": null,
"max": 0.7,
"conditions": "TA = 85°C; 2 oz trace and copper pad with solder",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VIN shutdown current",
"symbol": "IVINSDN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 7,
"max": 15,
"conditions": "TA = 25°C, No Load, EN = 0V, V5SW = 0 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VIN standby current",
"symbol": "IVINSTBY1",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 80,
"max": 120,
"conditions": "TA = 25°C, No Load, EN1=EN2=V5SW = 0 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREF2 output voltage",
"symbol": "VVREF2",
"kind": "electrical",
"unit": "V",
"min": 1.98,
"typ": 2,
"max": 2.02,
"conditions": "IVREF2 < ±10 µA, TA = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREF2 output voltage (wide range)",
"symbol": "VVREF2",
"kind": "electrical",
"unit": "V",
"min": 1.97,
"typ": 2,
"max": 2.03,
"conditions": "IVREF2 < ±100 µA, 4.5V < VIN < 25 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREG3 output voltage",
"symbol": "VVREG3",
"kind": "electrical",
"unit": "V",
"min": 3.135,
"typ": 3.3,
"max": 3.4,
"conditions": "V5SW = 0 V, 0 mA < IVREG3 < 10 mA, 5.5 V < VIN < 25 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREG3 output current",
"symbol": "IVREG3",
"kind": "electrical",
"unit": "mA",
"min": 10,
"typ": 15,
"max": 20,
"conditions": "VREG3 = 3 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREG5 output voltage",
"symbol": "VVREG5",
"kind": "electrical",
"unit": "V",
"min": 4.9,
"typ": 5.03,
"max": 5.15,
"conditions": "V5SW = 0 V, 0 mA < IVREG5 < 100 mA, 6 V < VIN < 25 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREG5 output voltage (5.5 V input)",
"symbol": "VVREG5",
"kind": "electrical",
"unit": "V",
"min": 4.5,
"typ": 5.03,
"max": 5.15,
"conditions": "V5SW = 0 V, 0 mA < IVREG5 < 100 mA, 5.5 V < VIN < 25 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREG5 output current",
"symbol": "IVREG5",
"kind": "electrical",
"unit": "mA",
"min": 100,
"typ": 150,
"max": 200,
"conditions": "V5SW = 0 V, VREG5 = 4.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VREG5 output current with V5SW",
"symbol": "IVREG5",
"kind": "electrical",
"unit": "mA",
"min": 200,
"typ": 300,
"max": 400,
"conditions": "V5SW = 5 V, VREG5 = 4.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Switchover threshold (turning on)",
"symbol": "VTHV5SW",
"kind": "electrical",
"unit": "V",
"min": 4.55,
"typ": 4.7,
"max": 4.8,
"conditions": "Turning on",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VFB regulation voltage",
"symbol": "VVFB",
"kind": "electrical",
"unit": "V",
"min": 0.9925,
"typ": 1,
"max": 1.0075,
"conditions": "TA = 25°C, No Load",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VFB regulation voltage tolerance over temperature",
"symbol": "VVFB",
"kind": "electrical",
"unit": "V",
"min": 0.99,
"typ": 1,
"max": 1.01,
"conditions": "TA = –40°C to 85°C, No Load",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VFB input current",
"symbol": "IVFB",
"kind": "electrical",
"unit": "nA",
"min": -50,
"typ": null,
"max": 50,
"conditions": "VFBx = 1.05 V, COMPx = 1.8 V, TA = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "CSNx discharge resistance",
"symbol": "RDischg",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 20,
"max": 40,
"conditions": "ENx = 0 V, CSNx = 0.5 V, TA = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "PG threshold, PG in from lower",
"symbol": "VTHPG",
"kind": "electrical",
"unit": "%",
"min": 92.5,
"typ": 95,
"max": 97.5,
"conditions": "PG in from lower",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PG threshold, PG in from higher",
"symbol": "VTHPG",
"kind": "electrical",
"unit": "%",
"min": 102.5,
"typ": 105,
"max": 107.5,
"conditions": "PG in from higher",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Switching frequency",
"symbol": "fSW",
"kind": "electrical",
"unit": "kHz",
"min": 273,
"typ": 303,
"max": 333,
"conditions": "Rf = 330 kΩ",
"source_page": 6,
"source": "datasheet"
},
{
"name": "RF threshold, low to high",
"symbol": "VTHRF",
"kind": "electrical",
"unit": "V",
"min": 0.7,
"typ": 1.3,
"max": 2,
"conditions": "Lo to Hi",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Minimum on-time",
"symbol": "tONMIN",
"kind": "electrical",
"unit": "ns",
"min": null,
"typ": 120,
"max": 150,
"conditions": "VDRVH = 90% to 10%, No Load",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Current limit threshold (ultra low voltage), TA = 25°C",
"symbol": "VOCL-ULV",
"kind": "electrical",
"unit": "mV",
"min": 27,
"typ": 31,
"max": 35,
"conditions": "TRIP = 0V/2V, TA = 25°C",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Current limit threshold (low voltage), TA = 25°C",
"symbol": "VOCL-LV",
"kind": "electrical",
"unit": "mV",
"min": 56,
"typ": 60,
"max": 64,
"conditions": "TRIP = 3.3V/5V, TA = 25°C",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Negative current limit threshold (ULV), TA = 25°C",
"symbol": "VOCLN-ULV",
"kind": "electrical",
"unit": "mV",
"min": -24,
"typ": -31,
"max": -38,
"conditions": "TRIP = 0V/2V, TA = 25°C",
"source_page": 6,
"source": "datasheet"
},
{
"name": "OVP trip threshold",
"symbol": "VOVP",
"kind": "electrical",
"unit": "%",
"min": 110,
"typ": 115,
"max": 120,
"conditions": "OVP detect",
"source_page": 7,
"source": "datasheet"
},
{
"name": "UVP trip threshold",
"symbol": "VUVP",
"kind": "electrical",
"unit": "%",
"min": 65,
"typ": 70,
"max": 73,
"conditions": "UVP detect",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VREF2 UVLO threshold, wake up",
"symbol": "VUVREF2",
"kind": "electrical",
"unit": "V",
"min": 1.7,
"typ": 1.8,
"max": 1.9,
"conditions": "Wake up",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VREG5 UVLO threshold, wake up",
"symbol": "VUVREG5",
"kind": "electrical",
"unit": "V",
"min": 4.1,
"typ": 4.2,
"max": 4.3,
"conditions": "Wake up",
"source_page": 7,
"source": "datasheet"
},
{
"name": "EN threshold, wake up",
"symbol": "VEN",
"kind": "electrical",
"unit": "V",
"min": 0.8,
"typ": 1,
"max": 1.2,
"conditions": "Wake up",
"source_page": 7,
"source": "datasheet"
},
{
"name": "EN1/EN2 threshold, wake up",
"symbol": "VEN12",
"kind": "electrical",
"unit": "V",
"min": 0.45,
"typ": 0.5,
"max": 0.55,
"conditions": "Wake up",
"source_page": 7,
"source": "datasheet"
},
{
"name": "EN1/EN2 source current",
"symbol": "IEN12",
"kind": "electrical",
"unit": "µA",
"min": 1.5,
"typ": 2,
"max": 2.6,
"conditions": "VEN1/EN2 = 0V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Current monitor output voltage",
"symbol": "VIMON",
"kind": "electrical",
"unit": "V",
"min": 2.65,
"typ": 2.95,
"max": 3.25,
"conditions": "TRIP = 0V/2V, VCSPx-CSNx = 30 mV, 0.95V<CNSx<12.6V, TA = 25°C",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Boot strap forward voltage",
"symbol": "VFBST",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.1,
"max": 0.2,
"conditions": "VVREG5-VBST, IF = 10 mA, TA = 25°C",
"source_page": 7,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"tps51221rtvr"
],
"discovery_pitch": "TPS51221RTVR (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",
"tps51221rtvr.kicad_sym",
"tps51221rtvr.kicad_mod",
"tps51221rtvr.glb",
"tps51221rtvr.step",
"tps51221rtvr.lbr",
"docs/hero.png",
"docs/tps51221rtvr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"tps51221rtvr-hero.glb",
"tps51221rtvr-hero.overlay.json"
],
"visibility": {
"public": true
}
}