component

MC7812BDTRKG

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
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docs mc7812bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
mc7812bdtrkg-etched.fit.json mc7812bdtrkg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc7812bdtrkg-etched.glb mc7812bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray
mc7812bdtrkg-etched.step mc7812bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray
mc7812bdtrkg.glb Publish 0.1.0 · Ray
mc7812bdtrkg.kicad_mod Publish 0.1.0 · Ray
mc7812bdtrkg.kicad_sym Publish 0.1.0 · Ray
mc7812bdtrkg.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
mc7812bdtrkg.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 (silk-marker, drawn, top-left) · Ray
page.json mc7812bdtrkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray
README.md mc7812bdtrkg: specified limits as data (metadata.characteristics, 21 rows from the datasheet) · Ray

MC7812BDTRKG

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

MC7812BDTRKG 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 Input power_in Unregulated positive input supply. Must remain approximately 2.0 V above the +12 V output (dropout ~2.0 V typ.) and not exceed 35 Vdc absolute max. A 0.33 uF ceramic input capacitor is required if the device is located an appreciable distance from the supply filter.
2 Ground power_in Device common / ground reference. A common ground is required between the input and output sides of the regulator. On the DPAK-3 (DT SUFFIX, CASE 369C) package the heatsink tab (drawn as terminal 4) is internally connected to pin 2 (Ground).
3 Output power_out Regulated +12 V positive output, capable of delivering >1.0 A with internal short-circuit and thermal protection. An output capacitor (Co) is not strictly required for stability but improves transient response; values <0.1 uF may cause instability.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-252-2(DPAK)
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • MC7812BDTRKG
  • MC7812BDTRKGD2TG
  • MC7812BDTRKGD2TR4G
  • MC7812BDTRKGTG
  • MC7812BDTRKGBTG

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output Voltage (TJ = 25°C) VO 11.5 12 12.5 Vdc TJ = 25°C 9
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO 11.4 12 12.6 Vdc 14.5 Vdc ≤ Vin ≤ 27 Vdc 9
Line Regulation, TJ = 25°C Regline 7.5 240 mV TJ = 25°C; 14.5 Vdc ≤ Vin ≤ 30 Vdc 9
Line Regulation, TJ = 25°C Regline 2.2 120 mV TJ = 25°C; 16 Vdc ≤ Vin ≤ 22 Vdc 9
Load Regulation, TJ = 25°C Regload 1.6 240 mV TJ = 25°C; 5.0 mA ≤ IO ≤ 1.5 A 9
Quiescent Current IB 3.4 8 mA 9
Quiescent Current Change IB 1 mA 15 Vdc ≤ Vin ≤ 30 Vdc 9
Quiescent Current Change IB 0.5 mA 5.0 mA ≤ IO ≤ 1.0 A 9
Ripple Rejection RR 60 dB 15 Vdc ≤ Vin ≤ 25 Vdc, f = 120 Hz 9
Dropout Voltage (IO = 1.0 A, TJ = 25°C) VI − VO 2 Vdc IO = 1.0 A, TJ = 25°C 9
Output Noise Voltage (TA = 25°C) Vn 10 V/VO 10 Hz ≤ f ≤ 100 kHz, TA = 25°C 9
Output Resistance rO 1.1 m f = 1.0 kHz 9
Short Circuit Current Limit (TA = 25°C) ISC 0.2 A Vin = 35 Vdc, TA = 25°C 9
Peak Output Current (TJ = 25°C) Imax 2.2 A TJ = 25°C 9
Average Temperature Coefficient of Output Voltage TCVO -0.8 mV/°C 9
Input Voltage VI 35 Vdc Input Voltage (5.0 − 18 V) rating row 1
Storage Junction Temperature Range Tstg -65 150 °C 1
Operating Junction Temperature TJ 150 °C 1
Operating Junction Temperature Range (MC7812BDTRKG) TJ -40 125 °C Ordering information for MC7812BDTRKG (DPAK, 2500 / Tape & Reel) 22
Thermal Resistance, Junction-to-Ambient (DPAK, case 369C) RJA 92 °C/W DPAK case 369C column 1
Thermal Resistance, Junction-to-Case (DPAK, case 369C) RJC 5 °C/W DPAK case 369C column 1

CAD (KiCad official)

  • Symbol: MC7812BDTRKG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: mc7812bdtrkg-etched.step / mc7812bdtrkg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc7812bdtrkg.step / mc7812bdtrkg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mc7812bdtrkg.step 119 KB You want the bare part, or you mark your own boards.
mc7812bdtrkg-etched.step 2.0 MB You want the part with MC7812BDTRKG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 514 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 (28 pp, sha256 a0831a3a6a3010ac, 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