component
NCP1034DR2G
Public Made by Adomby adom
onsemi DC-DC Converters, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710
{
"schema_version": 1,
"type": "component",
"slug": "ncp1034dr2g",
"title": "NCP1034DR2G",
"brief": "onsemi DC-DC Converters, SOIC-16. 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)",
"ncp1034dr2g",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "NCP1034DR2G",
"manufacturer": "onsemi",
"package": "SOIC-16",
"pin_count": 16,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586194365127933952",
"parts": {
"symbol": "ncp1034dr2g.kicad_sym",
"footprint": "ncp1034dr2g.kicad_mod",
"model_3d": "ncp1034dr2g-hero.glb",
"model_3d_plain": "ncp1034dr2g-etched.glb",
"model_3d_step": "ncp1034dr2g-etched.step",
"model_3d_step_plain": "ncp1034dr2g.step",
"lbr": "ncp1034dr2g.lbr"
},
"distributor_links": {
"lcsc": "C145178",
"mouser": "863-NCP1034DR2G"
},
"distributor_check": {
"checked_at": "2026-10-19T09:09:11Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "error"
},
"mouser": {
"pn": "863-NCP1034DR2G",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OCset",
"type": "input",
"description": "Current limit set point: a resistor from this pin to GND sets the positive and negative current limit threshold."
},
{
"number": "2",
"name": "FB",
"type": "input",
"description": "Inverting input to the error amplifier, connected to the regulator output through a resistor divider to set the output voltage."
},
{
"number": "3",
"name": "COMP",
"type": "output",
"description": "Error amplifier output, normally loaded with an external resistor and capacitor network to ground for loop compensation."
},
{
"number": "4",
"name": "SS/SD",
"type": "bidirectional",
"description": "Soft-start and shutdown: an external capacitor to ground sets the output startup time, and pulling this pin below 0.3 V shuts the converter down."
},
{
"number": "5",
"name": "SYNC",
"type": "bidirectional",
"description": "Synchronizes the internal oscillator to an external clock or outputs the internal oscillator sync to other controllers; if unused it should be connected to ground through a 10 k resistor."
},
{
"number": "6",
"name": "PGND",
"type": "power_in",
"description": "Power ground serving as a separate ground for the MOSFET driver, to be connected to the system power ground plane."
},
{
"number": "7",
"name": "LDRV",
"type": "output",
"description": "Output driver for the low-side MOSFET; absolute maximum is VCC + 0.3 V."
},
{
"number": "8",
"name": "DRVVCC",
"type": "power_in",
"description": "Supplies bias to the internal low-side driver; a minimum 0.1 F high-frequency capacitor must be connected from this pin to power ground, and the recommended supply is 10 to 18 V."
},
{
"number": "9",
"name": "VB",
"type": "power_in",
"description": "Supplies the high-side driver, must be held higher than the input voltage, and requires a minimum 0.1 F high-frequency capacitor from this pin to the switch node (VS); recommended VB-to-VS supply is 10 to 18 V."
},
{
"number": "10",
"name": "HDRV",
"type": "output",
"description": "Output driver for the high-side MOSFET; absolute maximum range is VS − 0.3 V to VB + 0.3 V."
},
{
"number": "11",
"name": "VS",
"type": "power_in",
"description": "Switch node connected to the source of the upper MOSFET and drain of the lower MOSFET; absolute maximum range is −1.0 V to 150 V, and it is the return path for the upper gate driver."
},
{
"number": "12",
"name": "VCC",
"type": "power_in",
"description": "Supplies power to the internal blocks; a minimum 0.1 F high-frequency capacitor must be connected from this pin to ground, and the recommended supply is 10 to 18 V."
},
{
"number": "13",
"name": "OCIN",
"type": "input",
"description": "Overcurrent sensing input; a serial resistor from this pin to the drain of the low-side MOSFET must be used to limit the current into the pin (input current maximum 20 mA)."
},
{
"number": "14",
"name": "GND",
"type": "power_in",
"description": "Signal ground for the internal reference and control circuitry; all voltages are referenced to this pin."
},
{
"number": "15",
"name": "RT",
"type": "passive",
"description": "A resistor from this pin to ground sets the oscillator frequency (programmable 25 kHz to 500 kHz)."
},
{
"number": "16",
"name": "UVLO",
"type": "input",
"description": "An external voltage divider sets the undervoltage lockout threshold levels; absolute maximum voltage is 10 V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"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: Pin-number-to-name mapping taken from the PIN FUNCTION DESCRIPTION table on page 3 (pins 1-16 in ord; The extracted text shows the capacitor values as '0.1 F' with the micro symbol missing; the value is; KiCad pin types are inferred from the functional descriptions because the datasheet gives no formal "
],
"pages_sent": 6,
"cost_usd": 0.0411,
"at": "2026-10-19T09:08:56"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586194365127933952",
"pages": 24,
"sha256": "a1494b03e349b98d",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 16,
"described": 16,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ncp1034dr2g.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
9.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ncp1034dr2g-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
9.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f8f56eeaad77e5342f996f361902e27a5a9d0d32dfe84f9c7644877ddc674e24",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "onsemi",
"Package": "SOIC-16",
"Category": "Power Management (PMIC)",
"Pins": "16"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "a1494b03e349b98db2c0ff02bc66e055d6ad408207fd59c37d26f39239613e94",
"rows": [
{
"name": "Feedback Voltage Accuracy",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -1.5,
"typ": null,
"max": 1.5,
"conditions": "−40°C < TJ < 125°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VCC Supply Current (Stat)",
"symbol": "ICC(Static)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2,
"max": 3,
"conditions": "SS = 0 V, No Switching, RT = 10 k, ROCSET = 10 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "DRVVCC Supply Current (Stat)",
"symbol": "IC(Static)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.1,
"max": 0.3,
"conditions": "SS = 0 V, No Switching",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VB Supply Current (Stat)",
"symbol": "IB(Static)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.1,
"max": 0.3,
"conditions": "SS = 0 V, No Switching",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VCC−Start−Threshold",
"symbol": "VCC_UVLO (R)",
"kind": "electrical",
"unit": "V",
"min": 7.9,
"typ": 8.9,
"max": 9.8,
"conditions": "Supply Ramping Up",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VCC−Stop−Threshold",
"symbol": "VCC_UVLO (F)",
"kind": "electrical",
"unit": "V",
"min": 7.3,
"typ": 8.2,
"max": 9,
"conditions": "Supply Ramping Down",
"source_page": 5,
"source": "datasheet"
},
{
"name": "DRVCC−Start−Threshold",
"symbol": "DRVCC_UVLO (R)",
"kind": "electrical",
"unit": "V",
"min": 7.9,
"typ": 8.9,
"max": 9.8,
"conditions": "Supply Ramping Up",
"source_page": 5,
"source": "datasheet"
},
{
"name": "DRVCC−Stop−Threshold",
"symbol": "DRVCC_UVLO (F)",
"kind": "electrical",
"unit": "V",
"min": 7.3,
"typ": 8.2,
"max": 9,
"conditions": "Supply Ramping Down",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VB−Start−Threshold",
"symbol": "VB_UVLO (R)",
"kind": "electrical",
"unit": "V",
"min": 7.9,
"typ": 8.9,
"max": 9.8,
"conditions": "Supply Ramping Up",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VB−Stop−Threshold",
"symbol": "VB_UVLO (F)",
"kind": "electrical",
"unit": "V",
"min": 7.3,
"typ": 8.2,
"max": 9,
"conditions": "Supply Ramping Down",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Undervoltage Threshold Value (Rising)",
"symbol": "UUVLO (Rising)",
"kind": "electrical",
"unit": "V",
"min": 1.19,
"typ": 1.25,
"max": 1.31,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Undervoltage Threshold Value (Falling)",
"symbol": "UUVLO (Falling)",
"kind": "electrical",
"unit": "V",
"min": 1.1,
"typ": 1.15,
"max": 1.2,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Oscillator Frequency",
"symbol": "FS",
"kind": "electrical",
"unit": "kHz",
"min": 170,
"typ": 200,
"max": 230,
"conditions": "RT = 20 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Oscillator Frequency",
"symbol": "FS",
"kind": "electrical",
"unit": "kHz",
"min": 320,
"typ": 375,
"max": 430,
"conditions": "RT = 10 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Source/Sink Current",
"symbol": "I(Source/Sink)",
"kind": "electrical",
"unit": "A",
"min": 50,
"typ": 100,
"max": 120,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Transconductance",
"symbol": "gm",
"kind": "electrical",
"unit": "mho",
"min": 1500,
"typ": 3150,
"max": 4000,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Soft-Start Current",
"symbol": "ISS",
"kind": "electrical",
"unit": "A",
"min": 15,
"typ": 20,
"max": 25,
"conditions": "SS = 0 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Dead Band Time",
"symbol": "tdead",
"kind": "timing",
"unit": "ns",
"min": 30,
"typ": 60,
"max": 120,
"conditions": "See Figure 3",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on FB, VUVLO, RT, OCset",
"symbol": "FB, VUVLO, RT, OCset",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 10,
"conditions": "All voltages referenced to GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on COMP, SS/SD, SYNC, OCIN",
"symbol": "COMP, SS/SD, SYNC, OCIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 5,
"conditions": "All voltages referenced to GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on LDRV",
"symbol": "LDRV",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "All voltages referenced to GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on DRVVCC, VCC",
"symbol": "DRVVCC, VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 20,
"conditions": "All voltages referenced to GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on VS",
"symbol": "VS",
"kind": "absolute_maximum",
"unit": "V",
"min": -1,
"typ": null,
"max": 150,
"conditions": "All voltages referenced to GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "OCin Input Current",
"symbol": "OCin",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating Ambient Temperature Range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction Operating Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "ESD Withstand Voltage, Human Body Model",
"symbol": "VESD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 2000,
"conditions": "Human Body Model; excluding pins VB, VS, HDRV (Note 1)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "ESD Withstand Voltage, Machine Model",
"symbol": "VESD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 200,
"conditions": "Machine Model; excluding pins VB, VS, HDRV (Note 1)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VIN Converting Voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VCC Supply Voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 10,
"typ": null,
"max": 18,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRVCC Supply Voltage",
"symbol": "DRVCC",
"kind": "recommended_operating",
"unit": "V",
"min": 10,
"typ": null,
"max": 18,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VB to VS Supply Voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 10,
"typ": null,
"max": 18,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating Frequency",
"symbol": "FSW",
"kind": "recommended_operating",
"unit": "kHz",
"min": 25,
"typ": null,
"max": 500,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction Temperature (recommended)",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Thermal Resistance, Junction-to-Ambient",
"symbol": "RJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 130,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ncp1034dr2g"
],
"discovery_pitch": "NCP1034DR2G (onsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"ncp1034dr2g.kicad_sym",
"ncp1034dr2g.kicad_mod",
"ncp1034dr2g.glb",
"ncp1034dr2g.step",
"ncp1034dr2g.lbr",
"docs/hero.png",
"docs/ncp1034dr2g-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ncp1034dr2g-hero.glb",
"ncp1034dr2g-hero.overlay.json",
"ncp1034dr2g-etched.glb"
],
"visibility": {
"public": true
}
}