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Contents

README

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L78M05ABV-DG

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

L78M05ABV-DG from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 INPUT power_in Unregulated DC input voltage, absolute maximum 35 V for VO = 5 to 18 V, bypassed with CI of 0.33 µF or larger close to the pin.
2 GROUND power_in Common ground reference for input and output, with quiescent current Id of 6 mA maximum.
3 OUTPUT power_out Regulated 5 V output (4.9 to 5.1 V at TJ = 25 °C for the AB version) with output current internally limited and up to 0.5 A.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: L78M05ABV-DG
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: l78m05abv-dg-etched.step / l78m05abv-dg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l78m05abv-dg.step / l78m05abv-dg.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (45 pp, sha256 aab13a77a9bc7601, retrieved 2026-10-06, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF