component

LM78L05

Public Made by Adom

by adom

KEXIN Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs lm78l05: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lm78l05-etched.fit.json lm78l05: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm78l05-etched.glb lm78l05: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm78l05-etched.step lm78l05: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm78l05-hero.glb Publish 0.2.1 · Ray
lm78l05-hero.overlay.json Publish 0.2.1 · Ray
lm78l05.glb Publish 0.1.0 · Ray
lm78l05.kicad_mod Publish 0.1.0 · Ray
lm78l05.kicad_sym Publish 0.1.0 · Ray
lm78l05.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
lm78l05.step Publish 0.1.0 · Ray
package.json Publish 0.2.1 · 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 Publish 0.2.1 · Ray
README.md lm78l05: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LM78L05

KEXIN · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

LM78L05 from KEXIN, in a SOT-89-3. 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 OUT power_out Regulated +5 V output. Typical Vo = 5.0 V (4.75 V to 5.25 V over Tj = 0 to 125 degC, Io = 1 mA to 70 mA). Maximum output current 100 mA. A 0.1 uF bypass capacitor to GND is recommended close to the pin for transient response.
2 GND power_in Common ground reference for the regulator. Also serves as the thermal tab on the SOT-89 package; PCB copper area on this pad aids power dissipation (Pd = 0.5 W at Ta = 25 degC).
3 IN power_in Unregulated DC input, 7 V to 20 V for spec compliance, 30 V absolute maximum. A 0.33 uF bypass capacitor to GND should be placed close to the pin for stability.

Key specifications

Parameter Value
Manufacturer KEXIN
Package SOT-89-3
Category PMIC
Pins 3

CAD (KiCad official)

  • Symbol: LM78L05
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: lm78l05-etched.step / lm78l05-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm78l05.step / lm78l05.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lm78l05.step 57 KB You want the bare part, or you mark your own boards.
lm78l05-etched.step 927 KB You want the part with LM78L05 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 262 faces against 42 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: KEXIN datasheet (2 pp, sha256 48de17a914051870, 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