component
MP8859GQ-0000-Z
Public Made by Adomby adom
MPS Others, QFN-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"slug": "mp8859gq-0000-z",
"title": "MP8859GQ-0000-Z",
"brief": "MPS Others, QFN-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"mpn": "MP8859GQ-0000-Z",
"manufacturer": "MPS",
"package": "QFN-16(3x3)",
"pin_count": 17,
"category": "Others",
"subcategory": "Others",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9feed784ebfda46d30a0e21e68cc0396.pdf",
"parts": {
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"footprint": "mp8859gq-0000-z.kicad_mod",
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"lbr": "mp8859gq-0000-z.lbr"
},
"distributor_links": {
"lcsc": "C5439043",
"digikey": "1589-MP8859GQ-0000-ZTR-ND",
"mouser": "946-MP8859GQ-0000-Z"
},
"distributor_check": {
"checked_at": "2026-10-27T00:55:56Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "1589-MP8859GQ-0000-ZTR-ND",
"status": "found"
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"status": "found"
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"pins": [
{
"number": "1",
"name": "IN",
"type": "power_in",
"description": "IN is the supply input for the chip and operates from 2.8V to 22V, with a capacitor CIN placed as close to the IC as possible to limit voltage spikes."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "GND is the power ground and reference for the regulated output voltage, and requires copper traces and vias with extra care in PCB layout."
},
{
"number": "3",
"name": "EN",
"type": "input",
"description": "EN is the on/off control for the entire chip, driven high to turn the chip on and low or floating to turn it off, with an internal 2MΩ pull-down to ground."
},
{
"number": "4",
"name": "ADD",
"type": "input",
"description": "ADD is the I2C slave address programming pin, set by a resistor divider from VCC to select one of four I2C slave addresses."
},
{
"number": "5",
"name": "SCL",
"type": "input",
"description": "SCL is the I2C clock pin and supports an I2C clock up to 3.4MHz."
},
{
"number": "6",
"name": "SDA",
"type": "bidirectional",
"description": "SDA is the data pin of the I2C interface."
},
{
"number": "7",
"name": "OC",
"type": "passive",
"description": "OC is the output constant-current limit set pin, configured by an external resistor."
},
{
"number": "8",
"name": "ALT",
"type": "output",
"description": "ALT is the alert output that is pulled to logic low to indicate a fault or warning has occurred."
},
{
"number": "9",
"name": "VCC",
"type": "power_out",
"description": "VCC is the internal 3.6V LDO regulator output and must be decoupled with a 1µF capacitor."
},
{
"number": "10",
"name": "AGND",
"type": "power_in",
"description": "AGND is the analog ground and must be connected to GND."
},
{
"number": "11",
"name": "GND",
"type": "power_in",
"description": "GND is the power ground and reference for the regulated output voltage, and requires copper traces and vias with extra care in PCB layout."
},
{
"number": "12",
"name": "OUT",
"type": "power_out",
"description": "OUT is the output power pin, with the output capacitor placed close to OUT and GND."
},
{
"number": "13",
"name": "BST2",
"type": "passive",
"description": "BST2 is the bootstrap pin, connected through a 0.1µF capacitor to SW2 to form a floating supply for the high-side switch driver."
},
{
"number": "14",
"name": "SW2",
"type": "passive",
"description": "SW2 is the switching node of the second half bridge, with one end of the inductor connected to SW2."
},
{
"number": "15",
"name": "SW1",
"type": "passive",
"description": "SW1 is the switching node of the first half bridge, with one end of the inductor connected to SW1."
},
{
"number": "16",
"name": "BST1",
"type": "passive",
"description": "BST1 is the bootstrap pin, connected through a 0.1µF capacitor to SW1 to form a floating supply for the high-side switch driver."
},
{
"number": "17",
"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": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": null,
"consensus": "skipped (clean text read)",
"guards": "pin_guards 0.1: passed",
"guard_notes": [],
"pages_sent": 9,
"cost_usd": 0.0007,
"at": "2026-10-27T00:55:22"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/9feed784ebfda46d30a0e21e68cc0396.pdf",
"pages": 32,
"sha256": "a88e314c593a29c2",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",
"checked": "2026-10-27",
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},
"metadata": {
"specs": {
"Manufacturer": "MPS",
"Package": "QFN-16(3x3)",
"Category": "Others",
"Pins": "17"
},
"appearance": {
"contacts": {
"quote": "close to the IC's VIN-to-GND and OUT-toGND pins, respectively. 2. Use a large copper plane for PGND.",
"page": 30,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "a88e314c593a29c2549d68eec630772a95f4b08e6c5b409b17cb38681e57ec58"
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},
"variants": [],
"sections": [
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"discovery_triggers": [
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"discovery_pitch": "MP8859GQ-0000-Z (MPS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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