component
MCP16502TAC-E
Public Made by Adomby adom
Microchip Tech DC-DC Converters, VQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383
{
"slug": "mcp16502tac-e",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech DC-DC Converters, VQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management (pmic)",
"mcp16502tac-e",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"mcp16502tac-e.kicad_sym",
"mcp16502tac-e.kicad_mod",
"mcp16502tac-e.glb",
"mcp16502tac-e.step",
"mcp16502tac-e.lbr",
"docs/hero.png",
"docs/mcp16502tac-e-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mcp16502tac-e-hero.glb",
"mcp16502tac-e-hero.overlay.json",
"mcp16502tac-e-etched.glb"
],
"component": {
"mpn": "MCP16502TAC-E",
"manufacturer": "Microchip Tech",
"package": "VQFN-32(5x5)",
"pin_count": 33,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d9965397837e3851e43f0a61ae2f5d3f.pdf",
"parts": {
"symbol": "mcp16502tac-e.kicad_sym",
"footprint": "mcp16502tac-e.kicad_mod",
"model_3d": "mcp16502tac-e-hero.glb",
"model_3d_plain": "mcp16502tac-e-etched.glb",
"model_3d_step": "mcp16502tac-e-etched.step",
"model_3d_step_plain": "mcp16502tac-e.step",
"lbr": "mcp16502tac-e.lbr"
},
"distributor_links": {
"lcsc": "C3189314"
},
"distributor_check": {
"checked_at": "2026-10-31T12:27:40Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "nINTO",
"type": "output",
"description": "Active-low, open-drain interrupt output."
},
{
"number": "2",
"name": "nRSTO",
"type": "output",
"description": "Active-low, open-drain reset output."
},
{
"number": "3",
"name": "SGND",
"type": "power_in",
"description": "Signal ground; connect to reference ground plane."
},
{
"number": "4",
"name": "SVIN",
"type": "power_in",
"description": "Input voltage for the analog control circuitry; decouple to SGND with a 1 µF (minimum) ceramic capacitor."
},
{
"number": "5",
"name": "SDA",
"type": "bidirectional",
"description": "I2C interface serial data."
},
{
"number": "6",
"name": "SCL",
"type": "input",
"description": "I2C interface serial clock."
},
{
"number": "7",
"name": "nSTRTO",
"type": "output",
"description": "Active-low, open-drain start event output, asserted low whenever nSTRT is low."
},
{
"number": "8",
"name": "PWRHLD",
"type": "input",
"description": "Power hold input, asserted high by the MPU to maintain power after start-up triggered by nSTRT and asserted low by the MPU to initiate a PMIC shutdown sequence."
},
{
"number": "9",
"name": "OUT1",
"type": "input",
"description": "Output sensing for Buck channel 1; connect to the regulation point for VOUT1."
},
{
"number": "10",
"name": "PVIN1",
"type": "power_in",
"description": "Power input voltage of Buck channel 1; connect a ceramic capacitor from PVIN1 to PGND1 to localize pulsed current loops and decouple switching noise."
},
{
"number": "11",
"name": "SW1",
"type": "power_out",
"description": "Switch node of Buck channel 1 with internal power MOSFET switches and external inductor connection."
},
{
"number": "12",
"name": "PGND1",
"type": "power_in",
"description": "Power ground of Buck channel 1."
},
{
"number": "13",
"name": "PGND2",
"type": "power_in",
"description": "Power ground of Buck channel 2."
},
{
"number": "14",
"name": "SW2",
"type": "power_out",
"description": "Switch node of Buck channel 2 with internal power MOSFET switches and external inductor connection."
},
{
"number": "15",
"name": "PVIN2",
"type": "power_in",
"description": "Power input voltage of Buck channel 2; connect a ceramic capacitor from PVIN2 to PGND2 to localize pulsed current loops and decouple switching noise."
},
{
"number": "16",
"name": "OUT2",
"type": "input",
"description": "Output sensing for Buck channel 2; connect to the regulation point for VOUT2."
},
{
"number": "17",
"name": "SELV2",
"type": "input",
"description": "Buck channel 2 output voltage selection, three-state input."
},
{
"number": "18",
"name": "SELVL1",
"type": "input",
"description": "LDO1 default output voltage selection, three-state input."
},
{
"number": "19",
"name": "LOUT1",
"type": "power_out",
"description": "LDO1 output; decouple to ground with a 2.2 µF (minimum) ceramic capacitor, default start-up state is ON and it can be disabled by I2C."
},
{
"number": "20",
"name": "LVIN",
"type": "power_in",
"description": "Input voltage for LDO1 and LDO2; decouple to ground with a 2.2 µF (minimum) ceramic capacitor."
},
{
"number": "21",
"name": "LOUT2",
"type": "power_out",
"description": "LDO2 output; if in use, decouple to SGND with a 2.2 µF (minimum) ceramic capacitor."
},
{
"number": "22",
"name": "LPM",
"type": "input",
"description": "Low-power mode input which, in combination with PWRHLD and HPM, defines the power mode status."
},
{
"number": "23",
"name": "HPM",
"type": "input",
"description": "High-performance mode input which, in combination with PWRHLD and LPM, defines the power mode status; connect to ground if not used."
},
{
"number": "24",
"name": "nSTRT",
"type": "input",
"description": "Start event input, internally pulled up; drive low to initiate a start-up sequence, and a capacitor can be added to auto-start when the main supply rises."
},
{
"number": "25",
"name": "OUT3",
"type": "input",
"description": "Output sensing for Buck channel 3; connect to the regulation point for VOUT3."
},
{
"number": "26",
"name": "PVIN3",
"type": "power_in",
"description": "Power input voltage of Buck channel 3; connect a ceramic capacitor from PVIN3 to PGND3 to localize pulsed current loops and decouple switching noise."
},
{
"number": "27",
"name": "SW3",
"type": "power_out",
"description": "Switch node of Buck channel 3 with internal power MOSFET switches and external inductor connection."
},
{
"number": "28",
"name": "PGND3",
"type": "power_in",
"description": "Power ground of Buck channel 3."
},
{
"number": "29",
"name": "PGND4",
"type": "power_in",
"description": "Power ground of Buck channel 4."
},
{
"number": "30",
"name": "SW4",
"type": "power_out",
"description": "Switch node of Buck channel 4 with internal power MOSFET switches and external inductor connection."
},
{
"number": "31",
"name": "PVIN4",
"type": "power_in",
"description": "Power input voltage of Buck channel 4; connect a ceramic capacitor from PVIN4 to PGND4 to localize pulsed current loops and decouple switching noise."
},
{
"number": "32",
"name": "OUT4",
"type": "input",
"description": "Output sensing for Buck channel 4; connect to the regulation point for VOUT4."
},
{
"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-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Datasheet prints the exposed pad number as an em dash (—); 'EP' used as the pin number. Pin types (e; MPN suffix 'AC' corresponds to the MCP16502AC device option (SAMA5D2 with LPDDR2); the pinout is ide"
],
"pages_sent": 11,
"cost_usd": 0.1293,
"at": "2026-10-31T12:27:20"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/d9965397837e3851e43f0a61ae2f5d3f.pdf",
"pages": 86,
"sha256": "817934d8538714e1",
"source_tier": "mfr"
},
"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": "mcp16502tac-e.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.875
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mcp16502tac-e-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.875
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "c642bf6cba1a84c4893f3d987c38327cbd8ec6a087a75c092cd91f5e19aefe41",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "S8B",
"source_page": 81,
"D": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 0.9,
"range_mm": [
0.8,
1.0
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "mcp16502tac-e.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}