component

L78L05ACZ

Public Made by Adom

by adom

STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicl78l05acz
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs l78l05acz: 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
l78l05acz-etched.fit.json l78l05acz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
l78l05acz-etched.glb l78l05acz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
l78l05acz-etched.step l78l05acz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
l78l05acz.glb Publish 0.1.0 · Ray
l78l05acz.kicad_mod Publish 0.1.0 · Ray
l78l05acz.kicad_sym Publish 0.1.0 · Ray
l78l05acz.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
l78l05acz.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · 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 l78l05acz: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md l78l05acz: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

L78L05ACZ

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3

L78L05ACZ from STMicroelectronics, in a TO-92-3. 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 VOUT power_out Regulated +5 V output, up to 100 mA. A 0.1 µF ceramic capacitor to GND is recommended for stability and transient response.
2 GND power_in Common ground reference for both input and output. Also serves as the thermal return path.
3 VIN power_in Unregulated DC input, absolute maximum 30 V (for 3.3-9 V output variants). A 0.33 µF capacitor to GND close to the pin is recommended to suppress input transients.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-92-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • L78L05ACZZ
  • L78L05ACZD
  • L78L05ACZD-TR
  • L78L05ACZU
  • L78L05ACZU-TR

CAD (KiCad official)

  • Symbol: L78L05ACZ
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: l78l05acz-etched.step / l78l05acz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l78l05acz.step / l78l05acz.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
l78l05acz.step 27 KB You want the bare part, or you mark your own boards.
l78l05acz-etched.step 1.3 MB You want the part with L78L05ACZ already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 325 faces against 19 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 (46 pp, sha256 aebc91bfc9b4bb67, 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