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MC79M12BDTRKG

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 mc79m12bdtrkg: 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
mc79m12bdtrkg-etched.fit.json mc79m12bdtrkg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc79m12bdtrkg-etched.glb mc79m12bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
mc79m12bdtrkg-etched.step mc79m12bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray
mc79m12bdtrkg.glb Publish 0.1.0 · Ray
mc79m12bdtrkg.kicad_mod Publish 0.1.0 · Ray
mc79m12bdtrkg.kicad_sym Publish 0.1.0 · Ray
mc79m12bdtrkg.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
mc79m12bdtrkg.step Publish 0.1.0 · Ray
package.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
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 mc79m12bdtrkg: 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 mc79m12bdtrkg: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MC79M12BDTRKG

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

MC79M12BDTRKG 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 of the regulator.
2 VI power_in Negative input voltage. Must remain typically at least 1.1 V more negative than VO (dropout), even at the high point of input ripple. Absolute maximum input voltage is −35 Vdc.
3 VO power_out Regulated −12 V negative output (nominal −12 V, ±4% tolerance; −11.5 V to −12.5 V at TJ = 25°C). Delivers up to 500 mA with adequate heatsinking; a 1.0 µF output capacitor is recommended for stability and transient response.
4 TAB power_in DPAK metal tab; electrically connected to the input pin (pin 2, VI) on this negative regulator family. Provides the primary thermal path to the PCB copper and should be soldered to a heatsinking copper pad.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MC79M12BDTRKG
  • MC79M12BDTRKGBDTG
  • MC79M12BDTRKGCDT
  • MC79M12BDTRKGCDTG
  • MC79M12BDTRKGCDTRK
  • MC79M12BDTRKGCDTRKG
  • MC79M12BDTRKGBT
  • MC79M12BDTRKGBTG
  • MC79M12BDTRKGCT
  • MC79M12BDTRKGCTG

CAD (KiCad official)

  • Symbol: MC79M12BDTRKG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK-3 (KiCad packages3D, STEP)
  • 3D model files: mc79m12bdtrkg-etched.step / mc79m12bdtrkg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc79m12bdtrkg.step / mc79m12bdtrkg.glb are the bare package body.

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