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LP2950CDT-3.3RKG

Public Made by Adom

by adom

onsemi LP2950CDT 3 3RKG 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 lp2950cdt-3-3rkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the pla… · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lp2950cdt-3-3rkg-etched.fit.json lp2950cdt-3-3rkg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp2950cdt-3-3rkg-etched.glb lp2950cdt-3-3rkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the pla… · Ray
lp2950cdt-3-3rkg-etched.step lp2950cdt-3-3rkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the pla… · Ray
lp2950cdt-3-3rkg.glb Publish 0.1.0 · Ray
lp2950cdt-3-3rkg.kicad_mod Publish 0.1.0 · Ray
lp2950cdt-3-3rkg.kicad_sym Publish 0.1.0 · Ray
lp2950cdt-3-3rkg.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
lp2950cdt-3-3rkg.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pinmap.json: symbol pin 4 (Tab/GND) lands on pad 2. On a DPAK the tab IS the middle lead, so the footprint gives it tha… · Ray
page.json lp2950cdt-3-3rkg: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the pla… · Ray
pinmap.json pinmap.json: symbol pin 4 (Tab/GND) lands on pad 2. On a DPAK the tab IS the middle lead, so the footprint gives it tha… · Ray
README.md lp2950cdt-3-3rkg: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LP2950CDT-3.3RKG

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

LP2950CDT-3.3RKG 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 supply input, VCC. Absolute maximum 30 Vdc (32 V peak transient <300 ms). For 3.3 V output, Vin must be at least VO + dropout (~3.68 V at 100 mA).
2 Ground power_in Device ground and reference return. Electrically common with the DPAK heatsink tab (shown as terminal 4 in the case outline drawing).
3 Output power_out Regulated 3.3 V output, up to 100 mA continuous (typ. current limit 220 mA). Requires ≥1.0 µF output capacitor for loop stability.
4 Tab/GND power_in DPAK exposed metal heatsink tab. Internally bonded to Pin 2 (Ground). Solder to a copper pour to lower junction-to-ambient thermal resistance (RθJA = 92 °C/W with recommended pad, RθJC = 6.0 °C/W).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LP2950CDT-3.3RKG
  • LP2950CDT-3.3RKGACDT-3.3
  • LP2950CDT-3.3RKGCZ-3.3
  • LP2950CDT-3.3RKGACZ-3.3
  • LP2950CDT-3.3RKGCD-3.3
  • LP2950CDT-3.3RKGACD-3.3
  • LP2950CDT-3.3RKGNCV2951ACD-3.3R2
  • LP2950CDT-3.3RKGCN-3.3
  • LP2950CDT-3.3RKGACN-3.3
  • LP2950CDT-3.3RKGCDM-3.3
  • LP2950CDT-3.3RKGACDM-3.3

CAD (KiCad official)

  • Symbol: LP2950CDT-3.3RKG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: lp2950cdt-3-3rkg-etched.step / lp2950cdt-3-3rkg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp2950cdt-3-3rkg.step / lp2950cdt-3-3rkg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lp2950cdt-3-3rkg.step 119 KB You want the bare part, or you mark your own boards.
lp2950cdt-3-3rkg-etched.step 2.4 MB You want the part with LP2950CDT-3.3RKG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 621 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 (22 pp, sha256 88c1955e96318431, 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