L79L08ACD13TR from STMicroelectronics, in a SOIC-8-150mil. 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 -8 V output. Delivers up to 100 mA. Recommended output decoupling capacitor 0.1 µF to GND.
2	VIN	power_in	Negative unregulated input voltage. Absolute maximum -30 V for -5 to -9 V variants (applies to L79L08AC). Recommended input decoupling capacitor 0.33 µF to GND. Pins 2, 3, 6 and 7 are electrically bonded to the die attach flag for improved thermal dissipation and must all be tied together to the input rail.
3	VIN	power_in	Negative unregulated input voltage. Internally commoned to pins 2, 6, 7 and the die attach flag for heat-sinking. Tie to the same input net as pin 2.
4	NC	unconnected	No internal connection. Leave floating or tie to GND per PCB convention.
5	GND	power_in	Ground / common return. Reference for both input and output voltages.
6	VIN	power_in	Negative unregulated input voltage. Internally commoned to pins 2, 3, 7 and the die attach flag for heat-sinking. Tie to the same input net as pin 2.
7	VIN	power_in	Negative unregulated input voltage. Internally commoned to pins 2, 3, 6 and the die attach flag for heat-sinking. Tie to the same input net as pin 2.
8	NC	unconnected	No internal connection. Leave floating or tie to GND per PCB convention.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	SOIC-8-150mil
Category	PMIC
Pins	8

Ordering variants

Same part, different packaging or reel option.

L79L08ACD13TR
L79L08ACZ-AP

CAD (KiCad official)

Symbol: L79L08ACD13TR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8-150mil (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`l79l08acd13tr.step`	122 KB	You want the bare part, or you mark your own boards.
`l79l08acd13tr-etched.step`	2.5 MB	You want the part with `L79L08ACD13TR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 608 faces against 147 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: STMicroelectronics datasheet (23 pp, sha256 bcf5edf4ea53f137, retrieved 2026-08-17, tier: manufacturer)
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