LR7805D from LRC, in a TO-252. 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	VI	power_in	Unregulated input voltage. Accepts up to 35 V (absolute maximum). Recommended input bypass capacitor of 0.33 µF placed as close as possible to the regulator for stability.
2	GND	power_in	Common ground reference for the regulator. On the DPAK package this pin is also electrically connected to the exposed thermal tab on the back of the package.
3	VO	power_out	Regulated +5 V output. Delivers typically 5.0 V (4.80-5.20 V @ 25 °C) at up to 1 A. Recommended output capacitor of 0.1 µF for transient response.

Key specifications

Parameter	Value
Manufacturer	LRC
Package	TO-252
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

LR7805DD
LR7805D

CAD (KiCad official)

Symbol: LR7805D
Footprint: Package_TO_SOT_SMD:TO-252-2
3D model: TO-252 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lr7805d.step`	119 KB	You want the bare part, or you mark your own boards.
`lr7805d-etched.step`	1.5 MB	You want the part with `LR7805D` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 383 faces against 83 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: LRC datasheet (9 pp, sha256 d635b02fe56ffd52, 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