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
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{
"schema_version": 1,
"type": "component",
"slug": "mcp16502tac-e",
"title": "MCP16502TAC-E",
"brief": "Microchip Tech DC-DC Converters, VQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"mcp16502tac-e",
"factory-2.0.0",
"extractor-text"
],
"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": [
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"file": "mcp16502tac-e.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
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"zmin_mm": 0,
"centre_offset_mm": 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": [
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"zmin_mm": 0,
"centre_offset_mm": 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,
"range_mm": [
null,
null
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},
"E1": {
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"range_mm": [
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"e": {
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"range_mm": [
null,
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},
"A": {
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"range_mm": [
0.8,
1
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},
"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"
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"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "VQFN-32(5x5)",
"Category": "Power Management (PMIC)",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "817934d8538714e1ca77f0aa2dba27c52b21b268ba1dd80dc35c38e5d035a769",
"rows": [
{
"name": "Supply Voltage Range",
"symbol": "VIN",
"kind": "electrical",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Undervoltage Lockout Threshold",
"symbol": "VUVLO_TH",
"kind": "electrical",
"unit": "V",
"min": 2.4,
"typ": 2.55,
"max": 2.7,
"conditions": "Turn-on",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Shutdown (OFF) Current",
"symbol": "ISHDN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 7,
"max": 11,
"conditions": "PWRHLD = LPM = HPM = 0, nSTRT, nRSTO, nSTRTO, nINTO floating, VIN = 5.5V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Shutdown Current, TJ up to +105°C",
"symbol": "ISHDN_105",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 6,
"max": 10,
"conditions": "PWRHLD = LPM = HPM = 0, nSTRT, nRSTO, nSTRTO, nINTO floating, VIN = 4.5V, TJ = -40°C to +105°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Hibernate Mode Non-Switching Quiescent Current",
"symbol": "IQNS_HIB",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 120,
"max": 150,
"conditions": "IOUT2 = 0 mA, Buck2 ON, all other channels OFF, VOUT2 >VOUT2_NOM, LPM = 1, PWRHLD = HPM = 0",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Time Base Accuracy",
"symbol": "ACC_TB",
"kind": "tolerance",
"unit": "%",
"min": -10,
"typ": null,
"max": 10,
"conditions": "FSD[1:0] = 00, 01",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Buck1 Input Operating Voltage Range",
"symbol": "VPVIN1",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Buck1 Output Voltage Range",
"symbol": "VOUT1",
"kind": "electrical",
"unit": "V",
"min": 1.2,
"typ": null,
"max": 3.7,
"conditions": "50 mV steps",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PVIN1 Shutdown Current",
"symbol": "IPVIN1_SHDN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.05,
"max": 2,
"conditions": "Regulator disabled, VPVIN1 = 5V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Buck1 Output Voltage Accuracy, FPWM",
"symbol": "ACC_OUTPWM1",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "IOUT1 = 0 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Buck1 Output Voltage Accuracy, Auto-PFM",
"symbol": "ACC_OUTPFM1",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "IOUT1 = 0 mA, B1HCEN = 0",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Hysteretic Control Mode Upper Regulation Threshold",
"symbol": "HCM_TH",
"kind": "electrical",
"unit": "%",
"min": 1.7,
"typ": 2.9,
"max": 4.3,
"conditions": "IOUT1 = 0 mA, PWRHLD = LPM = 1, HPM = 0, B1HCEN = 1, SVIN = PVIN1 = 1.06 VOUT1_NOM, OUT1 rising, % of VOUT1_NOM",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Hysteretic Control Mode Enable Threshold",
"symbol": "HCM_EN",
"kind": "electrical",
"unit": "%",
"min": 5,
"typ": 9,
"max": 13,
"conditions": "IOUT1 = 0 mA, PWRHLD = LPM = 1, HPM = 0, B1HCEN = 1, SVIN = PVIN1 falling, % of VOUT1_NOM",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 Switching Frequency",
"symbol": "fsw",
"kind": "electrical",
"unit": "MHz",
"min": 1.8,
"typ": 2,
"max": 2.2,
"conditions": "FPWM, FSD[1:0] = 00, 01",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 High-Side Switch On-Resistance",
"symbol": "RDsonP1",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 140,
"max": 160,
"conditions": "PVIN1 = SVIN = 3.6V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 Low-Side Switch On-Resistance",
"symbol": "RDsonN1",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 120,
"max": 140,
"conditions": "PVIN1 = SVIN = 3.6V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 POK Threshold",
"symbol": "POK_TH1",
"kind": "electrical",
"unit": "%",
"min": 90,
"typ": 92.5,
"max": 95,
"conditions": "OUT1 rising, % of VOUT1_NOM",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 Start-up POK Bypass Threshold",
"symbol": "VPOKB_TH_B1",
"kind": "electrical",
"unit": "mV",
"min": 360,
"typ": 400,
"max": 440,
"conditions": "PVIN1 – OUT1, OUT1 rising, PVIN1 = 3.0V, VOUT1_NOM = 3.3V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 High-Side Peak Current Limit (Cycle by Cycle)",
"symbol": "ILIM_HS1",
"kind": "electrical",
"unit": "A",
"min": 1.2,
"typ": 1.8,
"max": 2.4,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Buck1 Low-Side Negative Peak Current Limit (FPWM)",
"symbol": "ILIM_NEG1",
"kind": "electrical",
"unit": "A",
"min": -1.4,
"typ": -1,
"max": -0.8,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Buck1 Zero Current Detection Threshold",
"symbol": "IZCD1",
"kind": "electrical",
"unit": "mA",
"min": 0,
"typ": 50,
"max": 110,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Buck2/3/4 Input Operating Voltage Range",
"symbol": "VPVINx",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Buck2/3/4 Output Voltage Range",
"symbol": "VOUTx",
"kind": "electrical",
"unit": "V",
"min": 0.6,
"typ": null,
"max": 1.85,
"conditions": "25 mV steps",
"source_page": 8,
"source": "datasheet"
},
{
"name": "PVINx Shutdown Current",
"symbol": "IPVINx_SHDN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.05,
"max": 2,
"conditions": "Regulator disabled, PVINx = 5V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Buck2/3/4 Output Voltage Accuracy, FPWM (0.9V to 1.3V)",
"symbol": "ACC_OUTPWMx",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "IOUTx = 0 mA, 0.9V ≤ VOUTx ≤ 1.3V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Buck2/3/4 Output Voltage Accuracy, FPWM (outside 0.9V to 1.3V)",
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