JW5026 from JoulWatt Tech, in a SOT-23-6. 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	BST	passive	Bootstrap pin for the top switch driver. Connect a 0.1uF (or larger) capacitor between BST and SW to supply gate-drive current to the internal high-side N-channel MOSFET. Absolute maximum voltage is SW-0.3V to SW+5V.
2	GND	power_in	Device ground. Return path for internal circuitry and the low-side power MOSFET.
3	FB	input	Output voltage feedback pin. FB is regulated by the internal control loop to 800mV (typ). Connect a resistive divider from Vout to FB to GND to set the output voltage.
4	EN	input	Enable input. Drive EN high to turn on the regulator; drive low to shut down. Shutdown threshold is 1.3V typical (1.18V min / 1.42V max) with 120mV typical hysteresis. Absolute maximum voltage is -0.3V to 44V.
5	VIN	power_in	Input supply pin. Accepts 4.7V to 40V. Bypass VIN to GND with a suitably large ceramic capacitor (e.g. 4.7uF) close to the pin to filter input noise. Absolute maximum voltage is -0.3V to 44V.
6	SW	power_out	Switching node connecting the drain of the internal high-side and low-side MOSFETs. Connect the external inductor of the output LC filter from SW to the load. Absolute maximum voltage is -0.3V (-7V for 5ns) to 44V (45V for 5ns).

Key specifications

Parameter	Value
Manufacturer	JoulWatt Tech
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

JW5026SOTB#TRPBF

CAD (KiCad official)

Symbol: JW5026
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`jw5026.step`	97 KB	You want the bare part, or you mark your own boards.
`jw5026-etched.step`	1.5 MB	You want the part with `JW5026` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 359 faces against 117 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: JoulWatt Tech datasheet (12 pp, sha256 31a1b41d6483c408, retrieved 2026-08-17, tier: lcsc)
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