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L7805CV-DG

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

L7805CV-DG from STMicroelectronics, in a TO-220. 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 INPUT power_in Unregulated DC input supply (V_I). Accepts up to 35 V absolute maximum for the 5 V output variant. A 0.33 µF ceramic capacitor to GND close to the pin is recommended for stability and to filter input noise.
2 GROUND power_in Common ground reference for the regulator. Connected to the TO-220 mounting tab. Carries the quiescent current plus any load return current back to the input supply's negative rail.
3 OUTPUT power_out Regulated +5 V DC output (V_O). Delivers up to 1.5 A with adequate heatsinking; internally current-limited and thermally protected. A 0.1 µF ceramic capacitor to GND near the pin improves transient response.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • L7805CV-DG
  • L7805CV-DGACV
  • L7805CV-DGCP
  • L7805CV-DGCDT
  • L7805CV-DGCD2T

CAD (KiCad official)

  • Symbol: L7805CV-DG
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
l7805cv-dg.step 83 KB You want the bare part, or you mark your own boards.
l7805cv-dg-etched.step 862 KB You want the part with L7805CV-DG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 226 faces against 48 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 (58 pp, sha256 eb13ddb018868199, 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