KP116SPA from Kiwi Instruments, 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	COMP	input	Constant-current output loop compensation pin. Recommended to connect a 1-4.7 uF ceramic capacitor to GND. Internal clamp range approximately 0.7 V (low) to 3 V (high).
2	GND	power_in	Chip reference ground.
3	VDD	power_in	Chip supply pin. Recommended to connect a 1-4.7 uF ceramic capacitor to GND. Normal operating voltage 10-13 V (typ 11.5 V), UVLO ~8 V, clamp 14 V at 5 mA.
4	FB	input	Inductor current demagnetization detection and output overvoltage protection pin. Demagnetization threshold ~0.2 V; OVP threshold ~2 V.
5	CS	input	Current sense input pin. Peak current reference typically 1.9 V (RFB1=15k) or 1.45 V (RFB1=5.1k); constant-current output reference ~160 mV. 300 ns leading-edge blanking applied.
6	GATE	output	High-voltage MOSFET gate drive output pin. Absolute maximum -0.3 to 14 V.
7	NC	unconnected	No-connect pin. Leave floating during use.
8	HV	power_in	High-voltage input pin for internal startup and supply circuitry. Absolute maximum -0.3 to 650 V. Provides ~10 mA charging current (Drain=20 V) with ~40 uA typical leakage.

Key specifications

Parameter	Value
Manufacturer	Kiwi Instruments
Package	SOIC-8
Category	LED-drv
Pins	8

Ordering variants

Same part, different packaging or reel option.

KP116SPA

CAD (KiCad official)

Symbol: KP116SPA
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`kp116spa.step`	122 KB	You want the bare part, or you mark your own boards.
`kp116spa-etched.step`	1.6 MB	You want the part with `KP116SPA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 419 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 660bf226a61aacd4, 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