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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs mc79l05acpg: 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
mc79l05acpg-etched.fit.json mc79l05acpg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc79l05acpg-etched.glb mc79l05acpg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc79l05acpg-etched.step mc79l05acpg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc79l05acpg.glb Publish 0.1.0 · Ray
mc79l05acpg.kicad_mod Publish 0.1.0 · Ray
mc79l05acpg.kicad_sym Publish 0.1.0 · Ray
mc79l05acpg.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
mc79l05acpg.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 mc79l05acpg: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md mc79l05acpg: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MC79L05ACPG

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

MC79L05ACPG from onsemi, 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 GND power_in Common ground reference. Must be shared between the input and output supplies.
2 Vin power_in Negative input voltage. For the -5 V variant (MC79L05AC), typical input is around -10 V; absolute maximum -30 Vdc. Must remain at least ~2.0 V more negative than Vout even at the ripple minimum; a 0.33 uF bypass capacitor to ground is recommended.
3 Vout power_out Regulated negative output, -5.0 V nominal (-4.8 V to -5.2 V at Tj = 25 C), up to 100 mA. A 0.1 uF output bypass capacitor is recommended to improve stability and transient response.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MC79L05ACPG
  • MC79L05ACPGACPRPG
  • MC79L05ACPGACPRAG
  • MC79L05ACPGACDG
  • MC79L05ACPGACDR2G

CAD (KiCad official)

  • Symbol: MC79L05ACPG
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: mc79l05acpg-etched.step / mc79l05acpg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc79l05acpg.step / mc79l05acpg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mc79l05acpg.step 27 KB You want the bare part, or you mark your own boards.
mc79l05acpg-etched.step 1.7 MB You want the part with MC79L05ACPG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 423 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: onsemi datasheet (14 pp, sha256 115a59773830cb30, 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