78L05-150 from UMW, in a SOT-89-3. 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	Vout	power_out	Regulated 5V output. Typical VO=5V (min 4.95V, max 5.05V) at TJ=25°C. Maximum output current 150mA. Requires a 0.1µF ceramic output capacitor (CO) close to the pin for stability.
2	GND	power_in	Common ground reference for both input and output. Also serves as the thermal path in SOT-89 via the enlarged center pad/tab.
3	INPUT	power_in	Unregulated DC input supply. Absolute maximum VI=35V (for VO=3.3~18V variants) or 40V (VO=24V variant). Typical dropout voltage 1.7V. A 0.33µF input capacitor (C1) is recommended near the pin if the regulator is far from the bulk supply filter.

Key specifications

Parameter	Value
Manufacturer	UMW
Package	SOT-89-3
Category	PMIC
Pins	3

CAD (KiCad official)

Symbol: 78L05-150
Footprint: Package_TO_SOT_SMD:SOT-89-3
3D model: SOT-89-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`78l05-150.step`	57 KB	You want the bare part, or you mark your own boards.
`78l05-150-etched.step`	1.3 MB	You want the part with `78L05-150` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 355 faces against 42 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: UMW datasheet (17 pp, sha256 fe2f4e8f0d975d52, 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