KP1164SPA from Kiwi Instruments, in a SOP-7. 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. Recommend connecting a 1-4.7 uF ceramic capacitor to GND. Internally clamped between ~0.7 V and ~3 V.
2	GND	power_in	Chip reference ground.
3	VDD	power_in	IC supply pin. Normal operating range 10-13 V (typ 11.5 V), UVLO ~8 V, clamp ~14 V at 5 mA. Recommend a 1-4.7 uF ceramic capacitor to GND.
4	FB	input	Inductor current demagnetization detection and output over-voltage protection pin. Demag threshold 0.2 V, OVP threshold 2.0 V (1.9-2.1 V).
5	Drain	power_in	Internal 600V power MOSFET drain input (KP1164, Rds(on) typ 1.8 Ω). Also used for HV startup charging of VDD. Tied together with pin 6.
6	Drain	power_in	Internal 600V power MOSFET drain input (KP1164). Tied together with pin 5 for current handling and heat dissipation.
7	CS	input	Current sense input pin. Peak current reference programmable via RFB1 (1.9 V typ at RFB1=15k; 1.45 V typ at RFB1=5.1k). Constant-current output reference 160 mV, LEB 300 ns.

Key specifications

Parameter	Value
Manufacturer	Kiwi Instruments
Package	SOP-7
Category	LED-drv
Pins	7

Ordering variants

Same part, different packaging or reel option.

KP1164SPA

CAD (KiCad official)

Symbol: KP1164SPA
Footprint: Package_SO:SOIC-8-N7_3.9x4.9mm_P1.27mm
3D model: SOP-7 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`kp1164spa.step`	111 KB	You want the bare part, or you mark your own boards.
`kp1164spa-etched.step`	1.7 MB	You want the part with `KP1164SPA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 438 faces against 132 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 (7 pp, sha256 fab02bed10b097aa, 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