XB5350D0 from XySemi, in a SOT-23-5. 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	VT	unconnected	Test pin for vendor use only; not used by application. Leave unconnected or per typical application circuit.
2	GND	power_in	Ground reference. Connect to the negative terminal of the battery cell.
3	VDD	power_in	Power supply input. Absolute max -0.3 to 6 V. Bypass to GND with a 0.1 µF capacitor via a 100 Ω series resistor per the typical application circuit.
4	VM	power_out	Negative terminal of the battery pack (charger-/load- return). Internal integrated FET switch connects this terminal to GND during normal operation. Absolute max -6 to 10 V.
5	VM	power_out	Negative terminal of the battery pack (charger-/load- return). Internal integrated FET switch connects this terminal to GND during normal operation. Absolute max -6 to 10 V.

Key specifications

Parameter	Value
Manufacturer	XySemi
Package	SOT-23-5
Category	PMIC
Pins	5

CAD (KiCad official)

Symbol: XB5350D0
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`xb5350d0.step`	85 KB	You want the bare part, or you mark your own boards.
`xb5350d0-etched.step`	1.9 MB	You want the part with `XB5350D0` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 461 faces against 102 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: XySemi datasheet (12 pp, sha256 cdac108845178483, 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