component
LM5176RHFT
Public Made by Adomby adom
Texas Instruments DC-DC Converters, QFN-28-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "lm5176rhft",
"version": "0.1.0",
"type": "component",
"description": "Texas Instruments DC-DC Converters, QFN-28-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
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"power management (pmic)",
"lm5176rhft",
"factory-2.0.0",
"extractor-text"
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"dependencies": {},
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"component": {
"mpn": "LM5176RHFT",
"manufacturer": "Texas Instruments",
"package": "QFN-28-EP(4x5)",
"pin_count": 29,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/lit/ds/symlink/lm5176.pdf",
"parts": {
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"lbr": "lm5176rhft.lbr"
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"distributor_links": {
"lcsc": "C2657940",
"digikey": "296-LM5176RHFTTR-ND",
"mouser": "595-LM5176RHFT"
},
"distributor_check": {
"checked_at": "2026-11-06T00:50:27Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-LM5176RHFTTR-ND",
"status": "found"
},
"mouser": {
"pn": "595-LM5176RHFT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "MODE",
"type": "input",
"description": "Hiccup-mode select pin: 1.38 V < MODE < 2.22 V enables hiccup, and 2.6 V < MODE < VCC disables it, set by RMODE to AGND (93.1 kΩ or 200 kΩ)."
},
{
"number": "2",
"name": "DITH",
"type": "input",
"description": "Dither capacitor pin that modulates the oscillator frequency by 10% of the RT-set nominal frequency; grounding it disables dithering."
},
{
"number": "3",
"name": "RT/SYNC",
"type": "input",
"description": "Switching frequency programming pin set by a resistor to AGND, which can also accept an external sync clock; the operating frequency range is 100 kHz to 600 kHz."
},
{
"number": "4",
"name": "SLOPE",
"type": "input",
"description": "A capacitor from SLOPE to AGND provides the slope compensation ramp for stable current-mode operation in buck and boost modes."
},
{
"number": "5",
"name": "SS",
"type": "input",
"description": "Soft-start programming pin; a capacitor from SS to AGND sets the soft-start time."
},
{
"number": "6",
"name": "COMP",
"type": "output",
"description": "Error amplifier output, with an external RC network to AGND for loop compensation; the COMP range is 0.3 V to 3 V."
},
{
"number": "7",
"name": "AGND",
"type": "power_in",
"description": "Analog ground of the IC, to which the PowerPAD is soldered."
},
{
"number": "8",
"name": "FB",
"type": "input",
"description": "Feedback input for output voltage regulation, connected through a resistor divider from VOUT; PGOOD trips outside -9%/+10% of the 0.8 V VREF."
},
{
"number": "9",
"name": "VOSNS",
"type": "input",
"description": "Output voltage sense input, connected to the power stage output rail; the VOUT range is 0.8 V to 55 V."
},
{
"number": "10",
"name": "ISNS(-)",
"type": "input",
"description": "Negative input of the current sense amplifier; the common mode range is 0 V to 55 V and a 50 mV sensed drop activates constant-current control."
},
{
"number": "11",
"name": "ISNS(+)",
"type": "input",
"description": "Positive input of the current sense amplifier; shorting ISNS(+) to ISNS(-) disables the average current limit."
},
{
"number": "12",
"name": "CSG",
"type": "input",
"description": "Negative (ground) input of the PWM current sense amplifier, connected directly to the low side of the current sense resistor; CS and CSG are limited to ±0.3 V."
},
{
"number": "13",
"name": "CS",
"type": "input",
"description": "Positive input of the PWM current sense amplifier, referenced to CSG with a ±0.3 V limit."
},
{
"number": "14",
"name": "PGOOD",
"type": "output",
"description": "Open-drain power-good output, pulled low when FB is outside the -9%/+10% window; it can be pulled up to 8 V."
},
{
"number": "15",
"name": "SW2",
"type": "input",
"description": "Boost-side switching node; the absolute maximum is 60 V (-1 V to 60 V)."
},
{
"number": "16",
"name": "HDRV2",
"type": "output",
"description": "High-side gate driver output for the boost-side MOSFET, sourcing 1.8 A and sinking 2.2 A peak."
},
{
"number": "17",
"name": "BOOT2",
"type": "power_out",
"description": "Bootstrap pin for the boost-side high-side driver; an external capacitor from BOOT2 to SW2 is required, typically 0.1 µF to 0.22 µF at 16 V or higher."
},
{
"number": "18",
"name": "LDRV2",
"type": "output",
"description": "Low-side gate driver output for the boost-side MOSFET, sourcing 1.8 A and sinking 2.2 A peak."
},
{
"number": "19",
"name": "PGND",
"type": "power_in",
"description": "Power ground of the IC and the high-current return for the low-side gate drivers."
},
{
"number": "20",
"name": "VCC",
"type": "power_out",
"description": "Output of the VCC bias regulator, which requires a capacitor to ground; VCC is limited to 8.5 V absolute maximum."
},
{
"number": "21",
"name": "BIAS",
"type": "power_in",
"description": "Optional bias input to the VCC regulator to reduce power loss at high VIN; the BIAS range is 8 V to 36 V when VCC is in regulation."
},
{
"number": "22",
"name": "LDRV1",
"type": "output",
"description": "Low-side gate driver output for the buck-side MOSFET, sourcing 1.8 A and sinking 2.2 A peak."
},
{
"number": "23",
"name": "BOOT1",
"type": "power_out",
"description": "Bootstrap pin for the buck-side high-side driver; an external capacitor from BOOT1 to SW1 is required, typically 0.1 µF to 0.22 µF at 16 V or higher."
},
{
"number": "24",
"name": "HDRV1",
"type": "output",
"description": "High-side gate driver output for the buck-side MOSFET, sourcing 1.8 A and sinking 2.2 A peak."
},
{
"number": "25",
"name": "SW1",
"type": "input",
"description": "Buck-side switching node; the absolute maximum is 60 V (-1 V to 60 V)."
},
{
"number": "26",
"name": "EN/UVLO",
"type": "input",
"description": "Enable pin: EN/UVLO below 0.4 V gives shutdown, and above 1.22 V enables switching once VCC exceeds its UV threshold; the range is 0 V to 55 V."
},
{
"number": "27",
"name": "VIN",
"type": "power_in",
"description": "Input supply pin, connected to a supply between 4.2 V and 55 V (60 V absolute maximum)."
},
{
"number": "28",
"name": "VISNS",
"type": "input",
"description": "Input voltage sense pin, connected to the power stage input rail; with external bias the range is 2.5 V to 55 V."
},
{
"number": "29",
"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 RHF (QFN-28) pinout comes from Table 5-1 and Figure 5-2. The PowerPAD is not numbered in the dat"
],
"pages_sent": 12,
"cost_usd": 0.0285,
"at": "2026-11-06T00:50:04"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/lm5176.pdf",
"pages": 45,
"sha256": "98191bec36d43771",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 29,
"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
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}