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NCP3334DADJR2G

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by Ray

onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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NCP3334DADJR2G

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8

NCP3334DADJR2G from onsemi, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Power supply ground reference for the regulator.
2 SD input Active-low shutdown pin (SD). Threshold ON ≥ 2.0 V, OFF ≤ 0.4 V. When not in use, tie to the input pin. Shutdown input current is 0.07 µA typ (1.0 µA max for Vin ≤ 5.4 V, 5.0 µA max for Vin > 5.4 V).
3 IN power_in Power supply input voltage. Operating range 2.6 V to 12 V (absolute max −0.3 V to +16 V). Pin 3 and pin 4 are both IN and should be tied together externally.
4 IN power_in Power supply input voltage (second IN pin, tied internally/externally to pin 3). Recommend 1.0 µF input capacitor.
5 OUT power_out Regulated output voltage (adjustable 1.25 V to 10 V via external resistor divider on FB). Bypass to ground with Cout ≥ 1.0 µF. Rated for 500 mA continuous. Pin 5 and pin 6 are both OUT and should be tied together.
6 OUT power_out Regulated output voltage (second OUT pin, tied to pin 5). Reverse-bias protected up to 7 V above Vin.
7 FB input Feedback pin for adjustable output. Internal reference voltage = 1.25 V. Connect to resistor divider R1/R2 between OUT and GND to set Vout = 1.25 × (1 + R1/R2). Recommended divider current 10 µA to 100 µA; a 68 pF cap in parallel with R1 improves noise/stability.
8 NC unconnected Not connected. May be left floating.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • NCP3334DADJG
  • NCP3334DADJR2G

CAD (KiCad official)

  • Symbol: NCP3334DADJR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 aaea49c0bdbbf5af, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF