BL8075CB5TR50 from BL Shanghai Belling, 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	VIN	power_in	Regulator input supply. Operating range 3 V to 16 V (absolute max 20 V). Bypass to GND with a 1 uF ceramic capacitor close to the pin.
2	GND	power_in	Device ground reference for the internal reference, error amplifier, and output driver.
3	EN	input	Active-high enable input. VEN >= 1.5 V (up to VIN) turns the regulator on; VEN <= 0.4 V shuts it down (Iq typ. 1 uA at Vin=12 V, VEN=0 V). Do not leave floating.
4	NC	unconnected	No internal connection. Leave floating or tie to GND per PCB convention.
5	VOUT	power_out	Regulated output. Factory-trimmed to 5.0 V (suffix 50) at ±2% accuracy, up to 500 mA. Requires a 1 uF ceramic output capacitor to GND for stability.

Key specifications

Parameter	Value
Manufacturer	BL Shanghai Belling
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

BL8075CB5TR50
BL8075CB5TR50CC3TR

CAD (KiCad official)

Symbol: BL8075CB5TR50
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
`bl8075cb5tr50.step`	85 KB	You want the bare part, or you mark your own boards.
`bl8075cb5tr50-etched.step`	2.7 MB	You want the part with `BL8075CB5TR50` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 631 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: BL Shanghai Belling datasheet (6 pp, sha256 73ed30c1a6b4591d, 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