component
NCP1589AMNTWG
Public Made by Adomby adom
onsemi DC-DC Converters, DFN-10(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"component": {
"mpn": "NCP1589AMNTWG",
"manufacturer": "onsemi",
"package": "DFN-10(3x3)",
"pin_count": 11,
"category": "Power Management ICs",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.onsemi.com/pdf/datasheet/ncp1589amntw-d.pdf",
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"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "deferred",
"error": "shared DigiKey quota guard: 886 calls left today"
},
"mouser": {
"pn": null,
"status": "quota"
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"pins": [
{
"number": "1",
"name": "BOOT",
"type": "power_in",
"description": "Supply rail for the floating top gate driver, fed through an external diode (cathode to BOOT) with a 0.1 µF to 1 µF CBOOT capacitor to LX placed near the IC; rated 35 V wrt GND maximum."
},
{
"number": "2",
"name": "LX",
"type": "passive",
"description": "Switch node and reference for the floating top gate driver, connected to the source of the top MOSFET and used to sense the low-side MOSFET drop for overcurrent protection."
},
{
"number": "3",
"name": "UG",
"type": "output",
"description": "Top gate MOSFET driver output, connected to the gate of the top N-channel MOSFET."
},
{
"number": "4",
"name": "LG",
"type": "output",
"description": "Bottom gate MOSFET driver output, connected to the gate of the bottom N-channel MOSFET; it also sources 10 µA at startup into the ROCSET resistor to ground to set the overcurrent threshold."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "IC ground reference to which all control circuits are referenced."
},
{
"number": "6",
"name": "VCC",
"type": "power_in",
"description": "Supply rail for the internal circuitry, operating range 4.5 V to 13.2 V, decoupled with a 1 µF capacitor to GND placed near the IC."
},
{
"number": "7",
"name": "COMP/DISB",
"type": "bidirectional",
"description": "Error amplifier output and PWM comparator non-inverting input used with FB to compensate the voltage-control loop; pull low to disable the device."
},
{
"number": "8",
"name": "FB",
"type": "input",
"description": "Inverting input of the error amplifier, connected to the output resistor divider or directly to Vout, regulated to 0.8 V; maximum 5.0 V."
},
{
"number": "9",
"name": "VOS",
"type": "input",
"description": "Voltage offset sense input monitored for power good, overvoltage and undervoltage; regulated to 0.8 V like FB, maximum 5.0 V."
},
{
"number": "10",
"name": "PGOOD",
"type": "output",
"description": "Open-drain power good output with no internal pull-up, pulled low if VOS is outside ±10% of the 0.8 V Vref; maximum 7 V."
},
{
"number": "11",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
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"guard_notes": [
"extractor flagged: The package drawing (page 10) shows an exposed pad (D2 x E2) but the datasheet does not give it a pi; The datasheet does not state electrical pin types. The types here are inferred from the descriptions; The ordering table lists NCP1589AMNTWG, but the datasheet states no pinout difference between the A "
],
"pages_sent": 10,
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"at": "2026-10-23T18:22:15"
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"sha256": "4cfcc6af5f821801",
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