component
MP2637GR-Z
Public Made by Adomby adom
MPS(芯源) Battery Management, QFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"slug": "mp2637gr-z",
"title": "MP2637GR-Z",
"brief": "MPS(芯源) Battery Management, QFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"power management (pmic)",
"mp2637gr-z",
"factory-2.0.0",
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],
"component": {
"mpn": "MP2637GR-Z",
"manufacturer": "MPS(芯源)",
"package": "QFN-24(4x4)",
"pin_count": 25,
"category": "Power Management (PMIC)",
"subcategory": "Battery Management",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603356894887501824",
"parts": {
"symbol": "mp2637gr-z.kicad_sym",
"footprint": "mp2637gr-z.kicad_mod",
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"model_3d_step": "mp2637gr-z-etched.step",
"model_3d_step_plain": "mp2637gr-z.step",
"lbr": "mp2637gr-z.lbr"
},
"distributor_links": {
"lcsc": "C97258",
"digikey": "1589-1617-2-ND",
"mouser": "946-MP2637GR-Z"
},
"distributor_check": {
"checked_at": "2026-10-20T10:21:36Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "1589-1617-2-ND",
"status": "found",
"lifecycle": "Active"
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"status": "found"
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},
"pins": [
{
"number": "1",
"name": "PGND",
"type": "power_in",
"description": "Power ground pin for the charger power stage, returned to the PGND plane alongside the input, SYS and battery decoupling capacitors."
},
{
"number": "2",
"name": "CHG",
"type": "output",
"description": "Charge completion indicator; logic LOW indicates charge mode, and the pin is open-drain during charge complete or suspended."
},
{
"number": "3",
"name": "BOOST",
"type": "output",
"description": "Boost-mode indicator; logic LOW indicates boost mode is in operation, and the pin is open-drain during charge mode or sleep mode."
},
{
"number": "4",
"name": "CSP",
"type": "input",
"description": "Battery charge current sense positive input."
},
{
"number": "5",
"name": "BATT",
"type": "bidirectional",
"description": "Positive battery terminal and battery charge current sense negative input, with a 2.5V to 4.35V battery voltage recommended operating range."
},
{
"number": "6",
"name": "AGND",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "7",
"name": "OLIM",
"type": "input",
"description": "Programmable boost-mode output current limit; connect an external resistor to GND, which CANNOT be lower than 47.5kΩ."
},
{
"number": "8",
"name": "ISET",
"type": "input",
"description": "Programmable charge current pin; connect an external resistor to GND to program the charge current."
},
{
"number": "9",
"name": "NTC",
"type": "input",
"description": "Negative temperature coefficient thermistor input for battery temperature monitoring."
},
{
"number": "10",
"name": "FB",
"type": "input",
"description": "System voltage feedback input for boost mode, with a 1.2V feedback reference per the electrical characteristics."
},
{
"number": "11",
"name": "ACOK",
"type": "output",
"description": "Valid input supply indicator; logic LOW on this pin indicates the presence of a valid power supply."
},
{
"number": "12",
"name": "REG",
"type": "input",
"description": "Input voltage feedback for the input voltage regulation loop; connect to the tap of a resistor divider from VIN to GND."
},
{
"number": "13",
"name": "TMR",
"type": "passive",
"description": "Oscillator period timer; connect a timing capacitor to GND to set the timer period, or short to GND to disable the timer function."
},
{
"number": "14",
"name": "PWIN",
"type": "input",
"description": "Input pin detecting valid input power; a voltage between 0.8V and 1.15V is valid, and pulling this pin to GND turns off the IN-to-SYS pass-through MOSFET."
},
{
"number": "15",
"name": "ILIM",
"type": "input",
"description": "Input current set; connect to GND with an external resistor to program the charge-mode input current limit, where RILIM must exceed 16.5kΩ."
},
{
"number": "16",
"name": "VCC",
"type": "power_out",
"description": "Internal circuit power supply; bypass to GND with a ceramic capacitor not higher than 100nF, and the pin CANNOT carry an external load higher than 5mA."
},
{
"number": "17",
"name": "VB",
"type": "power_in",
"description": "Programmable battery-full voltage; leave floating or connect to logic HIGH for 4.2V, or connect to GND for 4.35V."
},
{
"number": "18",
"name": "EN",
"type": "input",
"description": "Charge control input; logic HIGH enables charging and logic LOW disables charging, active only when ACOK is low."
},
{
"number": "19",
"name": "MODE",
"type": "input",
"description": "Mode select; logic HIGH selects boost mode and logic LOW selects sleep mode, active only when ACOK is high."
},
{
"number": "20",
"name": "VIN",
"type": "power_in",
"description": "Adapter input; place a bypass capacitor close to this pin to prevent large input voltage spikes, with a recommended operating range of 4.5V to 6V."
},
{
"number": "21",
"name": "SYS",
"type": "power_out",
"description": "System output; a minimum of 22µF ceramic capacitor must be placed as close as possible to the SYS and PGND pins, with total capacitance not lower than 44µF."
},
{
"number": "22",
"name": "SW",
"type": "output",
"description": "Switch output node; it is recommended not to place vias on the SW plane during PCB layout."
},
{
"number": "23",
"name": "PGND",
"type": "power_in",
"description": "Power ground."
},
{
"number": "24",
"name": "PGND",
"type": "power_in",
"description": "Power ground."
},
{
"number": "25",
"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": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet pin table lists pins 1, 23 and 24 together as PGND with a single description; each is ; The table describes CHG, BOOST and ACOK as open-drain indicators, so 'output' was used as the KiCad ; KiCad types for BATT (bidirectional), TMR (passive), and CSP (input) are inferred from the function ",
"exposed pad 25 added from the footprint"
],
"pages_sent": 37,
"cost_usd": 0.1811,
"at": "2026-10-20T10:21:23"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603356894887501824",
"pages": 37,
"sha256": "a32255bb902badab",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"role": "plain",
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"seat": "z = 0",
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-10-20",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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"sha256": "e9c5c0ce503d0f862a6453ef10cecfc113104f3a56e7be041b5f2f33af60a9ba",
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},
"metadata": {
"specs": {
"Manufacturer": "MPS(芯源)",
"Package": "QFN-24(4x4)",
"Category": "Power Management (PMIC)",
"Pins": "25"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "a32255bb902badab610697f184b9878d6fe7b7f910f329e5deb713ae3dfb1221",
"rows": [
{
"name": "Supply voltage VIN",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "SYS pin voltage",
"symbol": "SYS",
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"min": -0.3,
"typ": null,
"max": 6.5,
"conditions": "",
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{
"name": "SW pin voltage",
"symbol": "SW",
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{
"name": "SW pin transient voltage",
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"kind": "absolute_maximum",
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"min": -2,
"typ": null,
"max": 8.5,
"conditions": "Transient, <20ns",
"source_page": 5,
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{
"name": "BATT pin voltage",
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"kind": "absolute_maximum",
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"min": -0.3,
"typ": null,
"max": 6.5,
"conditions": "",
"source_page": 5,
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},
{
"name": "ACOK, CHG, BOOST pin voltage",
"symbol": "ACOK, CHG, BOOST",
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"min": -0.3,
"typ": null,
"max": 6.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "All other pins voltage",
"symbol": "",
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"min": -0.3,
"typ": null,
"max": 6.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "Storage temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Supply voltage",
"symbol": "VVIN",
"kind": "recommended_operating",
"unit": "V",
"min": 4.5,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Battery voltage",
"symbol": "VBATT",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": null,
"max": 4.35,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Operating junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "IN to SYS NMOS ON resistance",
"symbol": "RIN to SYS",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": null,
"max": 65,
"conditions": "VCC=5V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "High-side PMOS ON resistance",
"symbol": "RH_DS",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": null,
"max": 30,
"conditions": "VCC=5V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Low-side NMOS ON resistance",
"symbol": "RL_DS",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": null,
"max": 30,
"conditions": "VCC=5V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "High-side PMOS peak current limit",
"symbol": "IPEAK_HS",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": null,
"max": 6.5,
"conditions": "CC Charge Mode/ Boost Mode",
"source_page": 6,
"source": "datasheet"
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{
"name": "High-side PMOS peak current limit",
"symbol": "IPEAK_HS",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": null,
"max": 3.2,
"conditions": "TC Charge Mode",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Low-side NMOS peak current limit",
"symbol": "IPEAK_LS",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": null,
"max": 6.3,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Switching frequency",
"symbol": "fsw",
"kind": "electrical",
"unit": "kHz",
"min": 490,
"typ": 600,
"max": 700,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VCC UVLO",
"symbol": "VCC_UVLO",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": 2.2,
"max": 2.4,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PWIN lower threshold",
"symbol": "VPWIN_L",
"kind": "electrical",
"unit": "V",
"min": 0.75,
"typ": 0.8,
"max": 0.85,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PWIN upper threshold",
"symbol": "VPWIN_H",
"kind": "electrical",
"unit": "V",
"min": 1.1,
"typ": 1.15,
"max": 1.2,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input quiescent current, charge mode",
"symbol": "IIN",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 2.5,
"conditions": "EN = 5V, Battery Float",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input quiescent current, charge mode",
"symbol": "IIN",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "EN = 0",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input current limit",
"symbol": "IIN_LIMIT",
"kind": "electrical",
"unit": "mA",
"min": 400,
"typ": 450,
"max": 500,
"conditions": "RILIM = 100k",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input current limit",
"symbol": "IIN_LIMIT",
"kind": "electrical",
"unit": "mA",
"min": 720,
"typ": 810,
"max": 900,
"conditions": "RILIM = 56k",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input current limit",
"symbol": "IIN_LIMIT",
"kind": "electrical",
"unit": "mA",
"min": 2400,
"typ": 2700,
"max": 3000,
"conditions": "RILIM = 16.5k",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input over-current threshold",
"symbol": "IIN(OCP)",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": null,
"max": 4.2,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Terminal battery voltage",
"symbol": "VBATT_FULL",
"kind": "electrical",
"unit": "V",
"min": 4.328,
"typ": 4.35,
"max": 4.372,
"conditions": "Connect VB to GND",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Terminal battery voltage",
"symbol": "VBATT_FULL",
"kind": "electrical",
"unit": "V",
"min": 4.179,
"typ": 4.2,
"max": 4.221,
"conditions": "Leave VB floating or connect to logic HIGH",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Recharge threshold",
"symbol": "VRECH",
"kind": "electrical",
"unit": "V",
"min": 4.09,
"typ": 4.15,
"max": 4.21,
"conditions": "Connect VB to GND",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Recharge threshold",
"symbol": "VRECH",
"kind": "electrical",
"unit": "V",
"min": 3.95,
"typ": 4.01,
"max": 4.07,
"conditions": "Leave VB floating or connect to logic HIGH",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Battery over voltage threshold",
"symbol": "",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": null,
"max": 103.3,
"conditions": "As percentage of the VBATT_FULL",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Constant charge (CC) current",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": 850,
"typ": 1000,
"max": 1150,
"conditions": "RS1 = 20mΩ, RISET = 120k",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Constant charge (CC) current",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": 1725,
"typ": 1987,
"max": 2250,
"conditions": "RS1 = 20mΩ, RISET = 60.4k",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Constant charge (CC) current",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": 2225,
"typ": 2525,
"max": 2825,
"conditions": "RS1 = 20mΩ, RISET = 47.5k",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Trickle charge current",
"symbol": "ITC",
"kind": "electrical",
"unit": "mA",
"min": 125,
"typ": null,
"max": 250,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Trickle charge voltage threshold",
"symbol": "VBATT_TC",
"kind": "electrical",
"unit": "V",
"min": 3,
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