KP41282SGA from Kiwi Instruments, 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	IC reference ground; also serves as the source of the internal power MOSFET. Tie pins 1 and 2 together to the SR return.
2	GND	power_in	IC reference ground; also serves as the source of the internal power MOSFET. Tie pins 1 and 2 together to the SR return.
3	VDD	power_in	IC supply pin. Absolute max 9 V DC; internally regulated from Drain to ~7.1 V (Drain=12V) with a 9 V clamp at 5 mA. VDD_ON ≈ 3.1 V, VDD_OFF ≈ 2.8 V (UVLO). Decouple to GND.
4	Vo	input	VDD supply configuration pin. Selects the VDD powering scheme (HV internal supply from Drain, or Vo LDO supply for Low-Side 12 V systems) - see functional description in the datasheet.
5	Drain	power_in	Drain of the internal power MOSFET (SR switch). Operating voltage range −0.3 to 80 V; MOSFET breakdown VBR = 80 V. Tie pins 5-8 together for current handling.
6	Drain	power_in	Drain of the internal power MOSFET (SR switch). Operating voltage range −0.3 to 80 V; MOSFET breakdown VBR = 80 V. Tie pins 5-8 together for current handling.
7	Drain	power_in	Drain of the internal power MOSFET (SR switch). Operating voltage range −0.3 to 80 V; MOSFET breakdown VBR = 80 V. Tie pins 5-8 together for current handling.
8	Drain	power_in	Drain of the internal power MOSFET (SR switch). Operating voltage range −0.3 to 80 V; MOSFET breakdown VBR = 80 V. Tie pins 5-8 together for current handling.

Key specifications

Parameter	Value
Manufacturer	Kiwi Instruments
Package	SOP-8
Category	PMIC
Pins	8

Ordering variants

Same part, different packaging or reel option.

KP41282SGA
KP41281SGA

CAD (KiCad official)

Symbol: KP41282SGA
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
`kp41282sga.step`	122 KB	You want the bare part, or you mark your own boards.
`kp41282sga-etched.step`	2.2 MB	You want the part with `KP41282SGA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 542 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: Kiwi Instruments datasheet (6 pp, sha256 a5f1e0ae53e6f0c6, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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