XL7026E1 from XLSEMI, in a SOP-8-EP. 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	FB	input	Feedback pin. Sensed against the internal 1.25 V reference through an external resistor divider from VOUT to set the output voltage (VOUT = 1.25 * (1 + R2/R1)).
2	VREG	power_in	Chip supply pin. Requires a 10 µF decoupling capacitor between VREG and GND to filter noise. An external 7-9 V bias can be applied to this pin to reduce internal power dissipation.
3	VC	passive	Internal voltage-regulator bypass pin. Requires a 1 µF ceramic capacitor connected between VC and VIN.
4	VIN	power_in	Main power input, DC 12-90 V (demo tested up to 84 V). Bypass to GND with an electrolytic capacitor placed close to the pin to suppress switching noise and inrush spikes.
5	SW	power_out	Power-switch output pin. Connects to the external inductor and freewheeling Schottky diode of the buck converter. Tied together with pin 6 for current handling.
6	SW	power_out	Power-switch output pin (paralleled with pin 5). Connects to the switching node of the buck converter.
7	OGND	power_in	Power/output ground return for the internal power stage. Tie to the ground plane at the input capacitor return.
8	GND	power_in	Signal ground reference for the control circuitry.
9	EP	power_in	Exposed thermal pad on the bottom of the SOP8-EP package. Solder to the ground copper pour for heat sinking; connect to GND.

Key specifications

Parameter	Value
Manufacturer	XLSEMI
Package	SOP-8-EP
Category	PMIC
Pins	9

Ordering variants

Same part, different packaging or reel option.

XL7026E1

CAD (KiCad official)

Symbol: XL7026E1
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8-EP (KiCad packages3D, STEP)

Provenance

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

Datasheet: XLSEMI datasheet (8 pp, sha256 56a8aedb64fd6229, retrieved 2026-08-17, tier: manufacturer)
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