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NCP4305DDR2G

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by Ray

onsemi AC-DC Controllers and Regulators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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NCP4305DDR2G

onsemi · AC-DC Controllers and Regulators · SOIC-8

NCP4305DDR2G 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 VCC power_in Supply voltage pin. Operating range up to 35 V (absolute max 37 V). Requires a local decoupling capacitor to GND.
2 MIN_TOFF input Adjusts the minimum off-time period by connecting a resistor to ground. Input voltage range -0.3 V to VCC; current -10 to 10 mA.
3 MIN_TON input Adjusts the minimum on-time period by connecting a resistor to ground. Input voltage range -0.3 V to VCC.
4 LLD input Light-Load Detection input. Modulates the driver clamp level and/or disables the driver during light-load conditions. Input voltage range -0.3 V to VCC.
5 TRIG/DIS input Ultrafast (7.5 ns) turn-off trigger input used to turn off the SR MOSFET in CCM applications to improve efficiency. Activates disable mode when pulled up for more than 100 μs. Input range -0.3 V to VCC.
6 CS input Current sense pin - detects current flow through the SR MOSFET and/or its body diode. Basic turn-off detection threshold is 0 mV. A series resistor may decrease the turn-off threshold. Rated -4 V to 200 V dynamic (tPW = 200 ns). Reduced ESD rating vs other pins (1 kV HBM).
7 GND power_in Ground reference for the SR MOSFET driver and VCC decoupling capacitor. Also ground return for MIN_TON/MIN_TOFF, LLD and TRIG timing resistors. Should be wired directly to the SR MOSFET source terminal using a Kelvin connection.
8 DRV output Gate driver output for the SR MOSFET. 8 A / 4 A peak sink/source capability; 5 V clamped output enables GaN FET drive. Absolute max output -0.3 V to 17 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • NCP4305DDR2G
  • NCP4305ADR2G
  • NCP4305BDR2G
  • NCP4305CDR2G
  • NCP4305AMNTWG
  • NCP4305DMNTWG
  • NCP4305xMT
  • NCP4305QDR2G

CAD (KiCad official)

  • Symbol: NCP4305DDR2G
  • 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 (54 pp, sha256 52605c5620289283, 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