79L05-150 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	GND	power_in	Common ground return for the regulator. Reference node for both the negative input and negative output voltages.
2	INPUT	power_in	Unregulated negative supply input (VI). For the 79L05 variant the input range is roughly -7V to -20V (absolute max -35V). A 0.33 µF ceramic bypass capacitor to GND is recommended close to the pin.
3	VOUT	power_out	Regulated negative output voltage (VO = -5V typ, -4.95V to -5.05V) sourcing up to 150mA (absolute max IO = 0.15A). A 0.1 µF output capacitor to GND is recommended for stability.

Key specifications

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

CAD (KiCad official)

Symbol: 79L05-150
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
`79l05-150.step`	57 KB	You want the bare part, or you mark your own boards.
`79l05-150-etched.step`	1.3 MB	You want the part with `79L05-150` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 340 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 (15 pp, sha256 ac755340c55db95e, 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