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NCP3063DR2G

onsemi · DC-DC Converters · SOIC-8

NCP3063DR2G from onsemi, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Switch Collector output Internal Darlington switch collector, rated 0 to +40 V, with switch current up to 1.5 A.
2 Switch Emitter output Internal Darlington switch emitter, rated −0.6 V to VCC when the transistor is off.
3 Timing Capacitor input Oscillator timing capacitor connection (CT) that sets the switching frequency; the pin voltage is limited to −0.2 V to +1.4 V.
4 GND power_in Ground pin for all internal circuits and the reference for the maximum ratings.
5 Comparator Inverting Input input Inverting input of the internal comparator, rated −0.2 V to VCC.
6 VCC power_in Voltage supply pin, rated 0 to +40 V.
7 Ipk Sense input Peak current sense input that monitors the voltage drop across an external resistor to limit peak current; rated −0.2 V to VCC + 0.2 V and the current limit sense voltage is 200 mV typical.
8 N.C. unconnected Pin not connected.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Power Management (PMIC)
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Oscillator frequency fOSC 110 150 190 kHz VPin 5 = 0 V, CT = 2.2 nF, TJ = 25°C 4
Discharge to charge current ratio IDISCHG / ICHG 5.5 6 6.5 − Pin 7 to VCC, TJ = 25°C 4
Current limit sense voltage VIPK(Sense) 165 200 235 mV TJ = 25°C (Note 6) 4
Threshold voltage line regulation REGLINE -6 2 6 mV VCC = 5.0 V to 40 V 4
Comparator input bias current ICII -1000 -100 1000 nA Vin = Vth 4
Threshold voltage tolerance (NCP3063 variant; NCP3063B/NCV3063 differ) VTH -1.5 1.5 % 4
Operating junction temperature range (NCP3063) TJ 0 70 °C NCP3063 variant (Note 3) 3
Supply voltage VCC 0 40 V Pin 6 3
Comparator inverting input voltage VCII -0.2 V Pin 5; upper limit printed as + VCC 3
Darlington switch collector voltage VSWC 0 40 V Pin 1 3
Darlington switch emitter voltage (transistor OFF) VSWE -0.6 V Pin 2, transistor OFF; upper limit printed as + VCC 3
Darlington switch collector to emitter voltage VSWCE 0 40 V Pin 1-2 3
Darlington switch current ISW 1.5 A 3
Ipk sense voltage VIPK -0.2 V Pin 7; upper limit printed as VCC + 0.2 3
Timing capacitor voltage VTCAP -0.2 1.4 V Pin 3 3
Storage temperature range TSTG -65 150 °C 3
Maximum junction temperature TJ MAX 150 °C 3
Thermal resistance, junction-to-air, SOIC-8 RJA 180 °C/W SOIC-8 package 3
Thermal resistance, junction-to-case, SOIC-8 RJC 45 °C/W SOIC-8 package 3

CAD (KiCad official)

  • Symbol: NCP3063DR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ncp3063dr2g-etched.step / ncp3063dr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp3063dr2g.step / ncp3063dr2g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (19 pp, sha256 706fe13c74fc8342, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF