BL8064CB3TR33 from BL Shanghai Belling, in a SOT-23. 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 regulator. Connect to system ground; also serves as the return for Cin and Cout bypass capacitors.
2	Vout	power_out	Regulated output voltage (3.3V for the '33' ordering suffix). Sources up to 200mA; requires a 1µF ceramic output capacitor to GND for stability.
3	Vin	power_in	Supply voltage input, 1.5V-6V recommended (10V absolute max). Requires a 1µF ceramic input capacitor to GND.

Key specifications

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

Ordering variants

BL8064CB3TR33
BL8064CB3TR33CB3ATR
BL8064CB3TR33CB5TR
BL8064CB3TR33CC3TR
BL8064CB3TR33CHBG

CAD (KiCad official)

Symbol: BL8064CB3TR33
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`bl8064cb3tr33.step`	59 KB	You want the bare part, or you mark your own boards.
`bl8064cb3tr33-etched.step`	2.8 MB	You want the part with `BL8064CB3TR33` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 655 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 (9 pp, sha256 c088d81caacad590, 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