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