KP1220SPA 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. Recommended to connect a 1-4.7uF ceramic capacitor in series with a resistor to the reference ground of the chip; the series resistor sets the over-current protection threshold. Internal clamp: Vcomp_H=3V, Vcomp_L=0.7V.
2	GND	power_in	Chip reference ground.
3	VDD	power_in	Chip supply pin. Normal operating voltage 10.5-13V (typ 11.5V); UVLO trip at 7.5-9.0V; internal clamp at 14V. Startup current 300uA typ, operating current 200uA typ at Fsw=7kHz.
4	ROVP	input	Output open-circuit protection voltage setting pin. A resistor divider on this pin programs the output OVP threshold. Absolute max -0.3 to 7V.
5	Drain	passive	Drain of the internal high-voltage MOSFET (500V VBR). Also used for HV startup charging (IHV=10mA at Drain=20V). Tied together with pin 6.
6	Drain	passive	Drain of the internal high-voltage MOSFET (500V VBR). Tied together with pin 5.
7	Source	output	Source output of the internal high-voltage MOSFET. Used for peak current sensing (VCC_REF=400mV typ constant-current reference, Vcs_min=70mV typ). Absolute max -0.3 to 7V.

Key specifications

Parameter	Value
Manufacturer	Kiwi Instruments
Package	SOP-7
Category	PMIC
Pins	7

Ordering variants

Same part, different packaging or reel option.

KP1220SPA

CAD (KiCad official)

Symbol: KP1220SPA
Footprint: Package_SO:SOIC-8-N7_3.9x4.9mm_P1.27mm
3D model: SOP-7 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Kiwi Instruments datasheet (6 pp, sha256 fa67d3ef978f2677, 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