KIA79L05F from KIA Semicon Tech, 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	Ground / common return. Reference pin for both the -5 V input and the -5 V regulated output.
2	VIN	power_in	Unregulated negative input voltage. Absolute maximum -35 V; typical operating range -20 V to -7 V. A 0.33 uF bypass capacitor to GND is recommended per the application circuit.
3	VOUT	power_out	Regulated -5.0 V output (±5% tolerance), up to 100 mA. Typical dropout 1.7 V at 40 mA. A 0.1 uF output capacitor to GND is recommended per the application circuit.

Key specifications

Parameter	Value
Manufacturer	KIA Semicon Tech
Package	SOT-89-3
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

KIA79L05FF

CAD (KiCad official)

Symbol: KIA79L05F
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
`kia79l05f.step`	57 KB	You want the bare part, or you mark your own boards.
`kia79l05f-etched.step`	1.0 MB	You want the part with `KIA79L05F` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 302 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: KIA Semicon Tech datasheet (3 pp, sha256 95167b0daeba2c7b, 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