component

MC78M05BDTRKG

Public Made by Adom

by adom

onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). 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 mc78m05bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
mc78m05bdtrkg-etched.fit.json mc78m05bdtrkg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc78m05bdtrkg-etched.glb mc78m05bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
mc78m05bdtrkg-etched.step mc78m05bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
mc78m05bdtrkg.glb Publish 0.1.0 · Ray
mc78m05bdtrkg.kicad_mod Publish 0.1.0 · Ray
mc78m05bdtrkg.kicad_sym Publish 0.1.0 · Ray
mc78m05bdtrkg.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
mc78m05bdtrkg.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pinmap.json: symbol pin 4 (TAB) lands on pad 2. On a DPAK the tab IS the middle lead, so the footprint gives it that le… · Ray
page.json mc78m05bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
pinmap.json pinmap.json: symbol pin 4 (TAB) lands on pad 2. On a DPAK the tab IS the middle lead, so the footprint gives it that le… · Ray
README.md mc78m05bdtrkg: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MC78M05BDTRKG

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)

MC78M05BDTRKG from onsemi, in a TO-252-2(DPAK). 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. Operating range up to 25 Vdc for the 5 V variant; absolute maximum input voltage is 35 Vdc. Typical dropout is 2.0 V; a bulk input capacitor is recommended when the regulator is located far from the filter capacitor.
2 GND power_in Common ground reference for input and output. Also thermally bonded to the heatsink tab (pin 4 of the case outline is internally connected to pin 2).
3 VO power_out Regulated +5.0 V output (4.8-5.2 V at TJ=25 °C). Rated for 500 mA maximum with adequate heatsinking; short-circuit current limit ~350 mA, peak output current ~700 mA. A small output capacitor improves transient response.
4 TAB passive Exposed heatsink tab on the DPAK-3 case outline; internally connected to pin 2 (Ground). Solder to a copper pour for thermal dissipation.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-252-2(DPAK)
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • MC78M05BDTRKG
  • MC78M05BDTRKGCDTRKG
  • MC78M05BDTRKGABDTRKG
  • MC78M05BDTRKGACDTRKG
  • MC78M05BDTRKGBTG
  • MC78M05BDTRKGCTG
  • MC78M05BDTRKGABTG
  • MC78M05BDTRKGACTG

CAD (KiCad official)

  • Symbol: MC78M05BDTRKG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: mc78m05bdtrkg-etched.step / mc78m05bdtrkg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc78m05bdtrkg.step / mc78m05bdtrkg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mc78m05bdtrkg.step 119 KB You want the bare part, or you mark your own boards.
mc78m05bdtrkg-etched.step 2.1 MB You want the part with MC78M05BDTRKG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 554 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: onsemi datasheet (16 pp, sha256 f676eb1d232d9a95, 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