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78D05L

Public Made by Adom

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UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. 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 78d05l: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 19d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
78d05l-etched.fit.json 78d05l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
78d05l-etched.glb 78d05l: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 19d ago
78d05l-etched.step 78d05l: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 19d ago
78d05l.glb Publish 0.1.0 · Ray 2mo ago
78d05l.kicad_mod Publish 0.1.0 · Ray 2mo ago
78d05l.kicad_sym Publish 0.1.0 · Ray 2mo ago
78d05l.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 2mo ago
78d05l.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json 78d05l: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 19d ago
README.md 78d05l: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

78D05L

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

78D05L from UMW, in a TO-252-2. 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. Absolute maximum V_I = 35V for the 5V variant. Bypass to GND with C_I = 0.33 µF close to the pin.
2 GND power_in Common ground reference for input and output. On TO-252/TO-252-3 the GND connection is also the thermal tab (die pad) and should be tied to a copper heatsink pour.
3 OUTPUT power_out Regulated +5V output. V_O typical 5.0V (4.8-5.2V at 25°C), up to 1A load current. Bypass to GND with C_O = 0.1 µF for stability. Internal short-circuit current limit ~800 mA (V_I = 35V).

Key specifications

Parameter Value
Manufacturer UMW
Package TO-252-2
Category PMIC
Pins 3

Ordering variants

  • 78D05LL

CAD (KiCad official)

  • Symbol: 78D05L
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2 (KiCad packages3D, STEP)
  • 3D model files: 78d05l-etched.step / 78d05l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 78d05l.step / 78d05l.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
78d05l.step 119 KB You want the bare part, or you mark your own boards.
78d05l-etched.step 1.2 MB You want the part with 78D05L already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 325 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: UMW datasheet (15 pp, sha256 0816f246cc64ec64, retrieved 2026-08-17, tier: lcsc)
  • 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