component
TPS54316PWP
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
tps54316pwp: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP)
97beccb
17d ago
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"title": "TPS54316PWP",
"brief": "Texas Instruments DC-DC Converters, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"tps54316pwp",
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"component": {
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"manufacturer": "Texas Instruments",
"package": "HTSSOP-20-EP",
"pin_count": 21,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/tps54315",
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"lbr": "tps54316pwp.lbr"
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"digikey": "2156-TPS54316PWP-ND",
"mouser": "595-TPS54316PWP"
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"distributor_check": {
"checked_at": "2026-10-10T19:42:18Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "2156-TPS54316PWP-ND",
"status": "found",
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},
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{
"number": "1",
"name": "AGND",
"type": "power_in",
"description": "Analog ground and return for the compensation network, output divider, slow-start capacitor, VBIAS capacitor, RT resistor and FSEL pin; make the PowerPAD connection to AGND."
},
{
"number": "2",
"name": "VSENSE",
"type": "input",
"description": "Error amplifier inverting input, to be connected directly to the output voltage sense point."
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{
"number": "3",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
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{
"number": "4",
"name": "PWRGD",
"type": "output",
"description": "Open-drain powergood output that is high-impedance when VSENSE is at or above 90% of Vref and otherwise low, and is low when SS/ENA is low or an internal shutdown is active."
},
{
"number": "5",
"name": "BOOT",
"type": "input",
"description": "Bootstrap input; a 0.022-µF to 0.1-µF low-ESR capacitor connected from BOOT to PH generates the floating drive for the high-side FET driver."
},
{
"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."
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{
"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."
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{
"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."
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{
"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."
},
{
"number": "10",
"name": "PH",
"type": "bidirectional",
"description": "Phase input/output at the junction of the internal high- and low-side power MOSFETs and the output inductor."
},
{
"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."
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{
"number": "12",
"name": "PGND",
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"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."
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{
"number": "13",
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"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."
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{
"number": "14",
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"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, operating from 3 V to 6 V and bypassed to PGND with a 1-µF to 10-µF low-ESR ceramic capacitor."
},
{
"number": "15",
"name": "VIN",
"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, operating from 3 V to 6 V and bypassed to PGND with a 1-µF to 10-µF low-ESR ceramic capacitor."
},
{
"number": "16",
"name": "VIN",
"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, operating from 3 V to 6 V and bypassed to PGND with a 1-µF to 10-µF low-ESR ceramic capacitor."
},
{
"number": "17",
"name": "VBIAS",
"type": "power_out",
"description": "Internal bias regulator output supplying the internal circuitry, to be bypassed to AGND with a 0.1-µF to 1.0-µF low-ESR ceramic capacitor."
},
{
"number": "18",
"name": "SS/ENA",
"type": "bidirectional",
"description": "Dual-function slow-start/enable pin: a logic input that enables or disables operation and a capacitor input that sets the start-up time."
},
{
"number": "19",
"name": "FSEL",
"type": "input",
"description": "Logic input that selects between the two internally set switching frequencies."
},
{
"number": "20",
"name": "RT",
"type": "input",
"description": "Frequency-setting resistor input; connect a resistor from RT to AGND to set the switching frequency fs."
},
{
"number": "21",
"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": {
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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 exposed thermal pad is not given a numbered pin in the pin table, so it is omitted from the pins; The exact MPN TPS54316PWP does not appear in the orderable addendum (page 19). The addendum lists TP; The Thermal Information table (page 4) is headed 'PWP (28 PINS)', which conflicts with the 20-pin pa",
"exposed pad 21 added from the footprint"
],
"pages_sent": 11,
"cost_usd": 0.0827,
"at": "2026-10-10T19:41:55"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/tps54315",
"pages": 31,
"sha256": "877a5f0bc56ab487",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"footprint": "viewers/footprint.html"
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"centre_offset_mm": 0,
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"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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{
"file": "tps54316pwp-etched.step",
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]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "HTSSOP-20-EP",
"Category": "Power Management (PMIC)",
"Pins": "21"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "877a5f0bc56ab487",
"rows": [
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{
"name": "RT input voltage (absolute maximum)",
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},
{
"name": "VSENSE input voltage (absolute maximum)",
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{
"name": "VBIAS, PWRGD, COMP output voltage (absolute maximum)",
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{
"name": "PH output voltage (absolute maximum)",
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{
"name": "COMP, VBIAS source current (absolute maximum)",
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"name": "PH sink current (absolute maximum)",
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"name": "SS/ENA, PWRGD sink current (absolute maximum)",
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{
"name": "Voltage differential AGND to PGND (absolute maximum)",
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{
"name": "Operating virtual junction temperature (absolute maximum)",
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{
"name": "Storage temperature (absolute maximum)",
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"unit": "°C",
"min": -65,
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"max": 150,
"conditions": "",
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"source": "datasheet"
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{
"name": "Input voltage range (recommended operating)",
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"unit": "V",
"min": 3,
"typ": null,
"max": 6,
"conditions": "",
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"source": "datasheet"
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{
"name": "Operating junction temperature (recommended operating)",
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"source": "datasheet"
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"name": "Input voltage range",
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"typ": null,
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},
{
"name": "Quiescent current, fs = 350 kHz",
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"min": 6.2,
"typ": null,
"max": 9.6,
"conditions": "fs = 350 kHz, FSEL ≤ 0.8 V, RT open",
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},
{
"name": "Quiescent current, shutdown",
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"typ": null,
"max": 1.4,
"conditions": "Shutdown, SS/ENA = 0 V",
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"source": "datasheet"
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{
"name": "Quiescent current, fs = 550 kHz",
"symbol": "I(Q)",
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"typ": null,
"max": 12.8,
"conditions": "fs = 550 kHz, FSEL ≤ 2.5 V, RT open, Phase pin open",
"source_page": 5,
"source": "datasheet"
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{
"name": "UVLO start threshold voltage",
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"min": 2.95,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "UVLO stop threshold voltage",
"symbol": "",
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"min": 2.7,
"typ": null,
"max": 2.8,
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{
"name": "UVLO hysteresis voltage",
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"min": 0.14,
"typ": null,
"max": 0.16,
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},
{
"name": "VBIAS output voltage",
"symbol": "VBIAS",
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"typ": 2.8,
"max": 2.9,
"conditions": "I(VBIAS) = 0",
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{
"name": "VBIAS output current",
"symbol": "",
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"conditions": "Static resistive loads only",
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{
"name": "Output voltage TPS54316 (3.3 V)",
"symbol": "VO",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 3.3,
"max": null,
"conditions": "TJ = 25°C, VIN = 5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output voltage tolerance TPS54316",
"symbol": "VO",
"kind": "tolerance",
"unit": "%",
"min": -2.5,
"typ": null,
"max": 2.5,
"conditions": "4 V ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40° ≤ TJ ≤ 125°C",
"source_page": 5,
"source": "datasheet"
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{
"name": "Line regulation",
"symbol": "",
"kind": "electrical",
"unit": "%/V",
"min": null,
"typ": 0.21,
"max": null,
"conditions": "IL = 3 A, 350 ≤ fs ≤ 550 kHz, TJ = 85°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Load regulation",
"symbol": "",
"kind": "electrical",
"unit": "%/A",
"min": null,
"typ": 0.21,
"max": null,
"conditions": "IL = 0 A to 3 A, 350 ≤ fs ≤ 550 kHz, TJ = 85°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internally set free-running frequency, FSEL low",
"symbol": "",
"kind": "electrical",
"unit": "kHz",
"min": 280,
"typ": 350,
"max": 420,
"conditions": "FSEL ≤ 0.8 V, RT open",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internally set free-running frequency, FSEL high",
"symbol": "",
"kind": "electrical",
"unit": "kHz",
"min": 440,
"typ": 550,
"max": 660,
"conditions": "FSEL ≥ 2.5 V, RT open",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Externally set free-running frequency",
"symbol": "",
"kind": "electrical",
"unit": "kHz",
"min": 252,
"typ": 280,
"max": 308,
"conditions": "RT = 180 kΩ (1% resistor to AGND)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Externally set free-running frequency",
"symbol": "",
"kind": "electrical",
"unit": "kHz",
"min": 460,
"typ": 500,
"max": 540,
"conditions": "RT = 100 kΩ (1% resistor to AGND)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Externally set free-running frequency",
"symbol": "",
"kind": "electrical",
"unit": "kHz",
"min": 663,
"typ": 700,
"max": 762,
"conditions": "RT = 68 kΩ (1% resistor to AGND)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Minimum controllable on time",
"symbol": "",
"kind": "timing",
"unit": "ns",
"min": 200,
"typ": null,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Maximum duty cycle",
"symbol": "",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": null,
"max": 90,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Error amplifier unity gain bandwidth",
"symbol": "",
"kind": "electrical",
"unit": "MHz",
"min": 3,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PWM comparator propagation delay (PWM comparator input to PH pin, excluding dead time)",
"symbol": "",
"kind": "timing",
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"min": 70,
"typ": null,
"max": 85,
"conditions": "10-mV overdrive",
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"source": "datasheet"
},
{
"name": "Enable threshold voltage, SS/ENA",
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"min": 0.82,
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"source": "datasheet"
},
{
"name": "Internal slow-start time TPS54316",
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