KP1262FSPA 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	ROVP	input	Output OVP adjustment pin. An external resistor to GND continuously sets the OVP trip point (recommended Rovp > 15 kΩ). When Rovp < 4 kΩ the system shuts down; if left floating, output overvoltage protection is disabled. ROVP source current is typically 40 μA.
2	NC	unconnected	No connection. Leave floating in the application.
3	GND	power_in	Chip reference ground.
4	HVDD	power_in	High-voltage supply input for the chip's internal startup and bias regulator. Absolute maximum HVDD voltage is 650 V; HVDD turn-on threshold is typically 15.5 V and UVLO (HVDD_OFF) is typically 5.8 V.
5	DRAIN	passive	Drain of the internal high-voltage power MOSFET (650 V breakdown on KP1262FSP, Rdson ≈ 4 Ω). Pins 5 and 6 are internally tied together as the switch node for the buck inductor.
6	DRAIN	passive	Drain of the internal high-voltage power MOSFET (shared with pin 5). Rated 650 V on KP1262FSP.
7	CS	input	Current-sense input pin. Senses the source current of the internal MOSFET via an external sense resistor; constant-current reference VCC_REF = 200 mV, peak-current limit VCS_MAX ≈ 1.5 V, with 500 ns leading-edge blanking and 150 ns overcurrent detection delay.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

KP1262FSPA
KP1262FSPAFDP

CAD (KiCad official)

Symbol: KP1262FSPA
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 (8 pp, sha256 495eb2517a36d8a7, 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