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L7809CV

Public Made by Adom

by adom

UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs l7809cv: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (pad-position, synthesised, bottom-right) · Ray
l7809cv-etched.fit.json l7809cv: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
l7809cv-etched.glb l7809cv: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
l7809cv-etched.step l7809cv: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
l7809cv-hero.glb Publish 0.2.1 · Ray
l7809cv-hero.overlay.json Publish 0.2.1 · Ray
l7809cv.glb Publish 0.1.0 · Ray
l7809cv.kicad_mod Publish 0.1.0 · Ray
l7809cv.kicad_sym Publish 0.1.0 · Ray
l7809cv.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
l7809cv.step Publish 0.1.0 · Ray
package.json Publish 0.2.1 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (pad-position, synthesised, bottom-right) · Ray
page.json Publish 0.2.1 · Ray
README.md l7809cv: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

L7809CV

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

L7809CV from UMW, 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 I power_in Unregulated input voltage. Recommended Vi ≥ 11.5V for 9V output; absolute maximum 35V. Bypass with a 0.33µF ceramic capacitor to GND close to the pin for stability.
2 G power_in Common ground reference for input and output. In the TO-220 package this pin is electrically connected to the metal tab (heatsink).
3 O power_out Regulated +9V output. Sources up to 1.2A with internal current limit (typ. 0.4A short-circuit). Bypass with a 0.1µF ceramic capacitor to GND to improve transient response.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • L7809CV

CAD (KiCad official)

  • Symbol: L7809CV
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: l7809cv-etched.step / l7809cv-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l7809cv.step / l7809cv.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
l7809cv.step 83 KB You want the bare part, or you mark your own boards.
l7809cv-etched.step 704 KB You want the part with L7809CV already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 183 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: UMW datasheet (18 pp, sha256 187ff89cc4c93f6a, 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