component
TPS54317RHFR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
tps54317rhfr: specified limits as data (metadata.characteristics, 57 rows from the datasheet)
82a3275
10d ago
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{
"schema_version": 1,
"type": "component",
"slug": "tps54317rhfr",
"title": "TPS54317RHFR",
"brief": "Texas Instruments DC-DC Converters, VQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"component": {
"mpn": "TPS54317RHFR",
"manufacturer": "Texas Instruments",
"package": "VQFN-24-EP(4x5)",
"pin_count": 25,
"category": "Power Supply Chip",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/tps54317",
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"lbr": "tps54317rhfr.lbr"
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"distributor_links": {
"lcsc": "C2072236",
"digikey": "296-50096-2-ND",
"mouser": "595-TPS54317RHFR"
},
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"checked_at": "2026-10-08T22:37:06Z",
"source": "Component Ocean /api/assign-pns",
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"status": "found",
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},
"pins": [
{
"number": "1",
"name": "COMP",
"type": "output",
"description": "Error amplifier output; connect the compensation network from COMP to VSENSE, with absolute maximum -0.3 to 7 V and 6 mA sink current."
},
{
"number": "2",
"name": "PWRGD",
"type": "output",
"description": "Open-drain power good output that is high when VSENSE is at or above 90% of Vref and low otherwise, and also low when SS/ENA is low or thermal shutdown is active; absolute maximum -0.3 to 7 V and 10 mA sink current."
},
{
"number": "3",
"name": "BOOT",
"type": "passive",
"description": "Bootstrap input; connect a 0.022 µF to 0.1 µF low-ESR capacitor from BOOT to PH to generate the floating high-side driver supply, with absolute maximum -0.3 to 17 V."
},
{
"number": "4",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor; steady-state limit -0.6 to 10 V and transient (<20 ns) limit -2 to 10 V."
},
{
"number": "5",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor; steady-state limit -0.6 to 10 V and transient (<20 ns) limit -2 to 10 V."
},
{
"number": "6",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor; steady-state limit -0.6 to 10 V and transient (<20 ns) limit -2 to 10 V."
},
{
"number": "7",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor; steady-state limit -0.6 to 10 V and transient (<20 ns) limit -2 to 10 V."
},
{
"number": "8",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor; steady-state limit -0.6 to 10 V and transient (<20 ns) limit -2 to 10 V."
},
{
"number": "9",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor; steady-state limit -0.6 to 10 V and transient (<20 ns) limit -2 to 10 V."
},
{
"number": "10",
"name": "NC",
"type": "unconnected",
"description": "Not connected internally."
},
{
"number": "11",
"name": "PGND",
"type": "power_in",
"description": "Power ground and high-current return for the low-side driver and power MOSFET; connect with large copper areas to the input and output supply returns and capacitor negative terminals."
},
{
"number": "12",
"name": "PGND",
"type": "power_in",
"description": "Power ground and high-current return for the low-side driver and power MOSFET; connect with large copper areas to the input and output supply returns and capacitor negative terminals."
},
{
"number": "13",
"name": "PGND",
"type": "power_in",
"description": "Power ground and high-current return for the low-side driver and power MOSFET; connect with large copper areas to the input and output supply returns and capacitor negative terminals."
},
{
"number": "14",
"name": "PGND",
"type": "power_in",
"description": "Power ground and high-current return for the low-side driver and power MOSFET; connect with large copper areas to the input and output supply returns and capacitor negative terminals."
},
{
"number": "15",
"name": "VIN",
"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, recommended 3 to 6 V with absolute maximum -0.3 to 7 V; bypass to PGND with a low-ESR 1 µF to 10 µF ceramic capacitor."
},
{
"number": "16",
"name": "VIN",
"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, recommended 3 to 6 V with absolute maximum -0.3 to 7 V; bypass to PGND with a low-ESR 1 µF to 10 µF ceramic capacitor."
},
{
"number": "17",
"name": "VIN",
"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, recommended 3 to 6 V with absolute maximum -0.3 to 7 V; bypass to PGND with a low-ESR 1 µF to 10 µF ceramic capacitor."
},
{
"number": "18",
"name": "VBIAS",
"type": "power_out",
"description": "Internal bias regulator output supplying internal circuitry; bypass to AGND with a low-ESR 0.1 µF to 1.0 µF ceramic capacitor, with absolute maximum -0.3 to 7 V and 6 mA limit."
},
{
"number": "19",
"name": "SS/ENA",
"type": "bidirectional",
"description": "Slow-start and enable pin: logic enable input (threshold 0.82 to 1.4 V, typical 1.2 V) and slow-start capacitor input that sets start-up time, with absolute maximum -0.3 to 7 V and 10 mA sink current."
},
{
"number": "20",
"name": "SYNC",
"type": "input",
"description": "Synchronization input to lock to an external oscillator or select between two internally set switching frequencies; when synchronizing externally, a resistor must be connected to RT; absolute maximum -0.3 to 7 V."
},
{
"number": "21",
"name": "NC",
"type": "unconnected",
"description": "Not connected internally."
},
{
"number": "22",
"name": "RT",
"type": "input",
"description": "Frequency-setting resistor input; connect a resistor from RT to AGND to set the switching frequency from 280 kHz to 1.6 MHz, with absolute maximum -0.3 to 6 V."
},
{
"number": "23",
"name": "AGND",
"type": "power_in",
"description": "Analog ground and return for the compensation network, output divider, slow-start capacitor, VBIAS capacitor, RT resistor and SYNC pin; connect directly to the AGND trace."
},
{
"number": "24",
"name": "VSNS",
"type": "input",
"description": "Error amplifier inverting input (VSENSE); absolute maximum -0.3 to 4 V."
},
{
"number": "25",
"name": "AGND",
"type": "power_in",
"description": "Exposed thermal pad (pin 25) that must be connected to AGND for ground and heat dissipation; use 0.013 inch diameter vias from the pad to the analog ground plane."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"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 terminal table lists AGND on pins 23 and 25, while the pin-assignment figure labels pin 25 as th; The datasheet lists pins 10 and 21 as NC, not connected internally. Recorded as unconnected.; The MPN TPS54317RHFR is the 3000-piece reel of the RHF 24-pin QFN with PowerPAD. The datasheet gives"
],
"pages_sent": 11,
"cost_usd": 0.09,
"at": "2026-10-08T22:36:24"
},
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"pages": 21,
"sha256": "e397d8e9ee178832",
"source_tier": "lcsc"
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"pins": {
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"refuses_to_fabricate": true
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"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "VQFN-24-EP(4x5)",
"Category": "Power Supply Chip",
"Pins": "25"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "VIN, SS/ENA, SYNC input voltage range",
"symbol": "VI",
"kind": "absolute_maximum",
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"max": 7,
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{
"name": "RT input voltage range",
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{
"name": "VSENSE input voltage range",
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"typ": null,
"max": 4,
"conditions": "",
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{
"name": "BOOT input voltage range",
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{
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"source_page": 2,
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"name": "PH output voltage range, steady state",
"symbol": "VO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.6,
"typ": null,
"max": 10,
"conditions": "steady state",
"source_page": 2,
"source": "datasheet"
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{
"name": "PH output voltage range, transient",
"symbol": "VO",
"kind": "absolute_maximum",
"unit": "V",
"min": -2,
"typ": null,
"max": 10,
"conditions": "transient < 20 ns",
"source_page": 2,
"source": "datasheet"
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{
"name": "COMP, VBIAS output current range",
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"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
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"source": "datasheet"
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{
"name": "PH output current range",
"symbol": "IO",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 2,
"source": "datasheet"
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{
"name": "COMP sink current",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 2,
"source": "datasheet"
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{
"name": "SS/ENA, PWRGD sink current",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 2,
"source": "datasheet"
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{
"name": "Voltage differential AGND to PGND",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating virtual junction temperature range",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Input voltage range",
"symbol": "VI",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal impedance, 24-pin RHF with solder",
"symbol": "",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 19.7,
"max": null,
"conditions": "Test board per note (2): 3 in x 3 in, 4 layers, 6 thermal vias",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction-to-case thermal impedance, 24-pin RHF with solder",
"symbol": "",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 1.7,
"max": null,
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"source_page": 3,
"source": "datasheet"
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{
"name": "Input voltage range, VIN",
"symbol": "VI",
"kind": "electrical",
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"min": 3,
"typ": null,
"max": 6,
"conditions": "TJ = -40 °C to 125 °C",
"source_page": 3,
"source": "datasheet"
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{
"name": "Quiescent current",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 6.2,
"max": 9.6,
"conditions": "fs = 350 kHz, SYNC = 0.8 V, RT open",
"source_page": 3,
"source": "datasheet"
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{
"name": "Quiescent current",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 8.4,
"max": 12.8,
"conditions": "fs = 550 kHz, SYNC ≥ 2.5 V, RT open, phase pin open",
"source_page": 3,
"source": "datasheet"
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{
"name": "Shutdown current",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1,
"max": 1.4,
"conditions": "Shutdown, SS/ENA = 0 V",
"source_page": 3,
"source": "datasheet"
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{
"name": "Start threshold voltage, UVLO",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.95,
"max": 3,
"conditions": "",
"source_page": 3,
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{
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"min": null,
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{
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"symbol": "",
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"min": null,
"typ": 0.14,
"max": 0.16,
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{
"name": "Output voltage, VBIAS",
"symbol": "VO",
"kind": "electrical",
"unit": "V",
"min": 2.7,
"typ": 2.8,
"max": 2.9,
"conditions": "I(VBIAS) = 0",
"source_page": 3,
"source": "datasheet"
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{
"name": "Output current, VBIAS",
"symbol": "",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 100,
"conditions": "Static resistive loads only",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Vref accuracy",
"symbol": "Vref",
"kind": "electrical",
"unit": "V",
"min": 0.882,
"typ": 0.891,
"max": 0.9,
"conditions": "",
"source_page": 3,
"source": "datasheet"
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{
"name": "Internally set free-running frequency range",
"symbol": "fs",
"kind": "electrical",
"unit": "kHz",
"min": 280,
"typ": 350,
"max": 420,
"conditions": "SYNC ≤ 0.8 V, RT open",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Internally set free-running frequency range",
"symbol": "fs",
"kind": "electrical",
"unit": "kHz",
"min": 440,
"typ": 550,
"max": 660,
"conditions": "SYNC ≥ 2.5 V, RT open",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Externally set free-running frequency range",
"symbol": "fs",
"kind": "electrical",
"unit": "kHz",
"min": 460,
"typ": 500,
"max": 540,
"conditions": "RT = 100 kΩ (1% resistor to AGND)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Externally set free-running frequency range",
"symbol": "fs",
"kind": "electrical",
"unit": "kHz",
"min": 995,
"typ": 1075,
"max": 1155,
"conditions": "RT = 43 kΩ (1% resistor to AGND)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "High-level threshold voltage, SYNC",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": 2.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
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{
"name": "Low-level threshold voltage, SYNC",
"symbol": "",
"kind": "electrical",
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"min": null,
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"source": "datasheet"
},
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