component
MIC2128YML-TR
Public Made by Adomby adom
Microchip Tech DC-DC Converters, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "mic2128yml-tr",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech DC-DC Converters, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power supply chip",
"mic2128yml-tr",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"mic2128yml-tr.kicad_sym",
"mic2128yml-tr.kicad_mod",
"mic2128yml-tr.glb",
"mic2128yml-tr.step",
"mic2128yml-tr.lbr",
"docs/hero.png",
"docs/mic2128yml-tr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mic2128yml-tr-hero.glb",
"mic2128yml-tr-hero.overlay.json",
"mic2128yml-tr-etched.glb"
],
"component": {
"mpn": "MIC2128YML-TR",
"manufacturer": "Microchip Tech",
"package": "VQFN-16-EP(3x3)",
"pin_count": 17,
"category": "Power Supply Chip",
"subcategory": "DC-DC Converters",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/bd47db402ffdcf5c8d6c69746f867fac.pdf",
"parts": {
"symbol": "mic2128yml-tr.kicad_sym",
"footprint": "mic2128yml-tr.kicad_mod",
"model_3d": "mic2128yml-tr-hero.glb",
"model_3d_plain": "mic2128yml-tr-etched.glb",
"model_3d_step": "mic2128yml-tr-etched.step",
"model_3d_step_plain": "mic2128yml-tr.step",
"lbr": "mic2128yml-tr.lbr"
},
"distributor_links": {
"lcsc": "C621532",
"digikey": "MIC2128YML-TR-ND",
"mouser": "579-MIC2128YML-TR"
},
"distributor_check": {
"checked_at": "2026-10-23T09:20:04Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "MIC2128YML-TR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "579-MIC2128YML-TR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PG",
"type": "output",
"description": "Open-drain Power Good output; connect to VDD through a pull-up resistor, and it is low when FB is 10% below the 0.6V reference."
},
{
"number": "2",
"name": "ILIM",
"type": "passive",
"description": "Current limit setting pin; connect a resistor from ILIM to SW to set the current limit (rated 0V to VIN operating, -0.3V to +76V absolute max)."
},
{
"number": "3",
"name": "SW",
"type": "bidirectional",
"description": "Switch node connecting the high-side MOSFET source and low-side MOSFET drain, returns the high-side gate driver and senses low-side current for negative current limit."
},
{
"number": "4",
"name": "BST",
"type": "passive",
"description": "Bootstrap capacitor pin supplying the high-side N-MOSFET driver; connect a minimum 0.1 µF low ESR ceramic capacitor between BST and SW."
},
{
"number": "5",
"name": "DH",
"type": "output",
"description": "High-side N-MOSFET gate driver output; connect to the gate of the external high-side N-MOSFET."
},
{
"number": "6",
"name": "PGND",
"type": "power_in",
"description": "Power ground, return for the low-side gate driver and reference for the current limit comparator; connect to the low-side MOSFET source and PVDD bypass capacitor return."
},
{
"number": "7",
"name": "DL",
"type": "output",
"description": "Low-side N-MOSFET gate driver output; connect to the gate of the external low-side N-MOSFET."
},
{
"number": "8",
"name": "PVDD",
"type": "power_out",
"description": "Internal high voltage LDO output supplying the low-side and floating high-side MOSFET drivers; connect a minimum 4.7 µF low ESR ceramic capacitor to PGND."
},
{
"number": "9",
"name": "EXTVDD",
"type": "power_in",
"description": "Supply to the internal low voltage LDO; connect to the buck output if between 4.7V and 14V (operating 0V to 13.2V) and bypass with a minimum 1 µF ceramic capacitor."
},
{
"number": "10",
"name": "EN",
"type": "input",
"description": "Enable logic input; logic high enables the converter and logic low disables it (0V to VIN operating)."
},
{
"number": "11",
"name": "FREQ",
"type": "input",
"description": "Switching frequency programming input; connect to the midpoint of a resistor divider between VIN and AGND, or tie to VIN for 800 kHz."
},
{
"number": "12",
"name": "SS",
"type": "passive",
"description": "Soft-start time setting pin; connect a ceramic capacitor from SS to AGND to set the output soft-start time."
},
{
"number": "13",
"name": "FB",
"type": "input",
"description": "Feedback input to the transconductance amplifier, regulated to 0.6V; connect to the midpoint of the resistor divider between output and AGND."
},
{
"number": "14",
"name": "AGND",
"type": "power_in",
"description": "Analog ground reference for the internal analog control circuits; connect to PGND at one point on the PCB."
},
{
"number": "15",
"name": "VDD",
"type": "power_in",
"description": "Supply for the internal analog circuits; connect to PVDD through a low pass filter with a minimum 4.7 µF low ESR ceramic capacitor to AGND."
},
{
"number": "16",
"name": "VIN",
"type": "power_in",
"description": "Supply input to the internal high voltage LDO, 4.5V to 75V; bypass to PGND with a minimum 0.1 µF low ESR ceramic capacitor."
},
{
"number": "17",
"name": "EP",
"type": "passive",
"description": "Exposed thermal pad; connect to the AGND copper plane to improve thermal performance."
}
],
"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: Pin types are inferred from the functions described; the datasheet does not state ERC types. The tex"
],
"pages_sent": 9,
"cost_usd": 0.0892,
"at": "2026-10-23T09:19:50"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/bd47db402ffdcf5c8d6c69746f867fac.pdf",
"pages": 36,
"sha256": "8d4e2fa21b3a8141",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "mic2128yml-tr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3.0,
3.0,
0.785
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mic2128yml-tr-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": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "02b4fe92376f88852dc29111ebcb5251dd3249d2e26604c43ac1c46804f21ecf",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}