NCP1654BD65R2G from onsemi, in a SOP-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	Ground reference for the IC.
2	VM	input	Multiplier Voltage input. Provides a voltage VM for PFC duty cycle modulation. Input impedance is proportional to the resistor RM externally connected to this pin. Device operates in average current mode with an external capacitor CM; otherwise, it operates in peak current mode. Absolute max input voltage -0.3 to +10 V.
3	CS	input	Current Sense Input. Sources current ICS proportional to inductor current IL, used for overcurrent protection (OCP, threshold ~200 μA), overpower limitation (OPL) and PFC duty cycle modulation. When ICS exceeds ~200 μA, OCP activates and the Drive Output is disabled. Absolute max input voltage -0.3 to +10 V.
4	Brown-Out	input	Brown-Out / Input voltage sense (VBO). Connect a resistor divider from the rectified input to this pin plus a capacitor to GND. Detects a voltage signal proportional to the average input voltage; when VBO drops below VBOL (~0.7 V typ) the output driver is disabled until VBO exceeds VBOH (~1.30 V typ). Also feeds the OPL and PFC duty cycle modulation blocks. Absolute max input voltage -0.3 to +10 V.
5	Vcontrol	input	Control Voltage / Soft-Start pin. Voltage on this pin directly controls the input impedance; connects to external type-2 compensation components to limit the Vcontrol bandwidth typically below 20 Hz for near-unity power factor. Provides no output when Vcontrol < Vcontrol(min) (~0.6 V), enabling soft-start. Absolute max input voltage -0.3 to +10 V.
6	VFB	input	Feed-Back / Shutdown input. Receives a feedback signal proportional to the PFC output voltage for output regulation, overvoltage protection (OVP triggers when VFB > 105% VREF) and undervoltage protection (UVP). When VFB falls below 8% VREF, the device enters low-consumption shutdown mode. VREF = 2.5 V typical. Absolute max input voltage -0.3 to +10 V.
7	VCC	power_in	Supply Voltage input. Positive supply of the IC. Typically starts operating when VCC exceeds ~10.5 V (VCC(on)) and turns off when VCC falls below ~9.0 V (VCC(off)). After start-up, operating range is 9 V to 20 V. Absolute max continuous 20 V (transient +25 V for <10 ms with IVCC < 10 mA).
8	DRV	output	Drive Output. High-current totem pole gate drive output (±1.5 A source/sink) suitable for driving high gate charge power MOSFETs directly. Typical rise/fall times ~60 ns / 40 ns into 2.2 nF.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

NCP1654BD65R2G
NCP1654BD65R2GBD133R2G
NCP1654BD65R2GBD200R2G

CAD (KiCad official)

Symbol: NCP1654BD65R2G
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ncp1654bd65r2g.step`	122 KB	You want the bare part, or you mark your own boards.
`ncp1654bd65r2g-etched.step`	3.0 MB	You want the part with `NCP1654BD65R2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 717 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: onsemi datasheet (23 pp, sha256 646e06ae203e5c50, 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