component
LTC3226EUD#TRPBF
Public Made by Adomby adom
Analog Devices Battery Management ICs, QFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "ltc3226eud-trpbf",
"version": "0.1.0",
"type": "component",
"description": "Analog Devices Battery Management ICs, QFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management ics",
"ltc3226eud#trpbf",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"files": [
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"ltc3226eud-trpbf.step",
"ltc3226eud-trpbf.lbr",
"docs/hero.png",
"docs/ltc3226eud-trpbf-datasheet.pdf",
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"viewers/footprint.html",
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"ltc3226eud-trpbf-hero.overlay.json",
"ltc3226eud-trpbf-etched.glb"
],
"component": {
"mpn": "LTC3226EUD#TRPBF",
"manufacturer": "Analog Devices",
"package": "QFN-16-EP(3x3)",
"pin_count": 17,
"category": "Power Management ICs",
"subcategory": "Battery Management ICs",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/3226fa.pdf",
"parts": {
"symbol": "ltc3226eud-trpbf.kicad_sym",
"footprint": "ltc3226eud-trpbf.kicad_mod",
"model_3d": "ltc3226eud-trpbf-hero.glb",
"model_3d_plain": "ltc3226eud-trpbf-etched.glb",
"model_3d_step": "ltc3226eud-trpbf-etched.step",
"model_3d_step_plain": "ltc3226eud-trpbf.step",
"lbr": "ltc3226eud-trpbf.lbr"
},
"distributor_links": {
"lcsc": "C684323",
"digikey": "505-LTC3226EUD#TRPBFTR-ND",
"mouser": "584-LTC3226EUD#TRPBF"
},
"distributor_check": {
"checked_at": "2026-11-02T17:06:42Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "505-LTC3226EUD#TRPBFTR-ND",
"status": "found"
},
"mouser": {
"pn": "584-LTC3226EUD#TRPBF",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VOUT",
"type": "power_out",
"description": "Voltage output that powers the external load from VIN or the supercapacitor via the LDO; it should be bypassed with a low ESR ceramic capacitor of at least 47μF to GND."
},
{
"number": "2",
"name": "PFO",
"type": "output",
"description": "Open-drain power-fail status output pulled to ground by an internal N-channel MOSFET when the PFI input is below 1.2V."
},
{
"number": "3",
"name": "PFI",
"type": "input",
"description": "Power-fail comparator input with a 1.2V falling threshold and 20mV hysteresis, which controls PFO and the normal/backup operating mode."
},
{
"number": "4",
"name": "LDO_FB",
"type": "input",
"description": "LDO feedback compared to the internal 0.8V reference; an external divider between VOUT, LDO_FB and GND programs the LDO output voltage."
},
{
"number": "5",
"name": "GATE",
"type": "output",
"description": "External PFET gate drive from the ideal diode controller, which regulates VOUT to 15mV below VIN."
},
{
"number": "6",
"name": "RST_FB",
"type": "input",
"description": "Reset comparator input with a 0.74V falling threshold and 20mV hysteresis, controlling the RST output."
},
{
"number": "7",
"name": "RST",
"type": "output",
"description": "Open-drain reset status output pulled low when RST_FB falls below 0.74V and released after a 290ms delay once VOUT recovers."
},
{
"number": "8",
"name": "EN_CHG",
"type": "input",
"description": "Charge pump enable with an internal pull-up; pulling this pin below 0.4V disables the internal charge pump."
},
{
"number": "9",
"name": "PROG",
"type": "passive",
"description": "Charger input current limit programming pin, where a resistor to GND sets the limit with the PROG pin servoed to 1V."
},
{
"number": "10",
"name": "CPO_FB",
"type": "input",
"description": "Charge pump feedback compared to the internal 1.2V reference; an external divider between CPO, CPO_FB and GND programs the CPO termination voltage."
},
{
"number": "11",
"name": "CAPGOOD",
"type": "output",
"description": "Open-drain CPO status output pulled to ground until CPO is within 7.5% of its target value, then high impedance."
},
{
"number": "12",
"name": "C–",
"type": "passive",
"description": "Internal charge pump flying capacitor negative terminal, connected to C+ through a 1μF to 10μF X5R or X7R ceramic capacitor."
},
{
"number": "13",
"name": "VIN",
"type": "power_in",
"description": "Primary input supply with a 2.5V to 5.5V input range, bypassed to GND with a low ESR ceramic capacitor of at least 2.2μF."
},
{
"number": "14",
"name": "VMID",
"type": "passive",
"description": "Midpoint of the two series supercapacitors, servoed to half of the CPO voltage by a leakage balancer with about 4.5mA source and 5.5mA sink capability."
},
{
"number": "15",
"name": "C+",
"type": "passive",
"description": "Internal charge pump flying capacitor positive terminal, connected to C- through a 1μF to 10μF X5R or X7R ceramic capacitor."
},
{
"number": "16",
"name": "CPO",
"type": "power_out",
"description": "Backup supply pin connected to the top plate of the top supercapacitor, which receives power from VIN through the charge pump and supplies VOUT through the LDO during backup."
},
{
"number": "17",
"name": "GND",
"type": "power_in",
"description": "Exposed pad ground that must be connected to a continuous ground plane on the second PCB layer through several vias directly under the part."
}
],
"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": [],
"pages_sent": 16,
"cost_usd": 0.0284,
"at": "2026-11-02T17:06:33"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/3226fa.pdf",
"pages": 16,
"sha256": "6096fb27eed897c7",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"seat": "z = 0",
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"footprint_binding": "identity",
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"checked": "2026-11-02",
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},
{
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}