component

MC79M05BDTRKG

Public Made by Adom

by adom

onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DPAK-3. 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 mc79m05bdtrkg: 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
mc79m05bdtrkg-etched.fit.json mc79m05bdtrkg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc79m05bdtrkg-etched.glb mc79m05bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
mc79m05bdtrkg-etched.step mc79m05bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
mc79m05bdtrkg.glb Publish 0.1.0 · Ray
mc79m05bdtrkg.kicad_mod Publish 0.1.0 · Ray
mc79m05bdtrkg.kicad_sym Publish 0.1.0 · Ray
mc79m05bdtrkg.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
mc79m05bdtrkg.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 mc79m05bdtrkg: 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 mc79m05bdtrkg: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MC79M05BDTRKG

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

MC79M05BDTRKG from onsemi, in a DPAK-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 voltages. In the DPAK-3 package this pin is also electrically common with the tab (pin 4).
2 VI power_in Unregulated negative input supply. Absolute maximum input voltage is -35 Vdc. Must remain typically 1.1 V more negative than VO (dropout voltage) even during ripple peaks. A 0.33 uF input bypass capacitor (Cin) is recommended when the regulator is located an appreciable distance from the power supply filter.
3 VO power_out Regulated -5.0 V output (tolerance +/-4.0% for the B-grade, TJ = -40 to +125 C). Delivers up to 500 mA with proper heatsinking. A 1.0 uF output capacitor (CO) is recommended to improve stability and transient response.
4 TAB power_in Exposed thermal tab on the DPAK-3 package. Electrically connected to pin 1 (GND). Should be soldered to a copper pour for heat dissipation; copper area determines effective theta_JA (see Figure 1 on page 4).

Key specifications

Parameter Value
Manufacturer onsemi
Package DPAK-3
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • MC79M05BDTRKG
  • MC79M05BDTRKGBDTG
  • MC79M05BDTRKGCDT
  • MC79M05BDTRKGCDTG
  • MC79M05BDTRKGCDTRK
  • MC79M05BDTRKGCDTRKG
  • MC79M05BDTRKGBT
  • MC79M05BDTRKGBTG
  • MC79M05BDTRKGCT
  • MC79M05BDTRKGCTG

CAD (KiCad official)

  • Symbol: MC79M05BDTRKG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK-3 (KiCad packages3D, STEP)
  • 3D model files: mc79m05bdtrkg-etched.step / mc79m05bdtrkg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc79m05bdtrkg.step / mc79m05bdtrkg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mc79m05bdtrkg.step 119 KB You want the bare part, or you mark your own boards.
mc79m05bdtrkg-etched.step 2.1 MB You want the part with MC79M05BDTRKG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 547 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 (9 pp, sha256 cab487486a5292f6, 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