BL8536CB3TR33 from BL Shanghai Belling, in a SOT-23-3L. 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	Ground reference for the device. Return path for input, output, and switching currents.
2	SW	power_out	Switching node. Connect the boost inductor between VIN and this pin. Internal synchronous PMOS/NMOS drives this node at ~1MHz; absolute max -0.3V to 6V.
3	OUT	power_out	Regulated boosted output voltage pin (1.8V to 3.6V depending on option code). Also serves as the internal supply after startup. Connect a 10uF ceramic capacitor closely to GND; absolute max -0.3V to 6V.

Key specifications

Parameter	Value
Manufacturer	BL Shanghai Belling
Package	SOT-23-3L
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

BL8536CB3TR33
BL8536CB5TR
BL8536CC3TR

CAD (KiCad official)

Symbol: BL8536CB3TR33
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`bl8536cb3tr33.step`	59 KB	You want the bare part, or you mark your own boards.
`bl8536cb3tr33-etched.step`	2.9 MB	You want the part with `BL8536CB3TR33` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 676 faces against 69 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: BL Shanghai Belling datasheet (6 pp, sha256 ed58218e9c427062, 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