XL6005E1 from XLSEMI, in a TO-252-5. 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	GND	power_in	Device ground return. All internal reference, control and power-stage currents return through this pin.
2	EN	input	Enable / PWM-dimming input. TTL-compatible: drive low (<0.8 V) to shut down the regulator (~70 uA ISTBY), drive high (>1.4 V) to enable. Floating defaults high. Can be toggled with a PWM signal for LED dimming.
3	SW	output	Power switch (drain of internal N-MOSFET) output. Connects to the boost inductor and Schottky rectifier. Rated up to 60 V and 4 A switch current, Rdson ~110 mohm. Metal tab is also tied to SW.
4	VIN	power_in	Supply voltage input. Operates from 3.6 V to 32 V DC (abs-max 36 V). Bypass to GND with a suitably large low-ESR capacitor to eliminate input noise.
5	FB	input	Feedback input to the internal error amplifier. Regulates to a 0.22 V (typ; 209-231 mV) threshold, typically set by a current-sense resistor RS at the LED string return: ILED = 0.22 V / RS.

Key specifications

Parameter	Value
Manufacturer	XLSEMI
Package	TO-252-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

XL6005E1

CAD (KiCad official)

Symbol: XL6005E1
Footprint: Package_TO_SOT_SMD:TO-252-5_TabPin6
3D model: TO-252-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: XLSEMI datasheet (10 pp, sha256 e057cbbb0c7feabf, retrieved 2026-08-17, tier: manufacturer)
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