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L78L12ACZ-AP

Public Made by Adom

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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout cross-checked by two models against 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
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docs l78l12acz-ap: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers l78l12acz-ap: viewers · Ray 11d ago
l78l12acz-ap-etched.fit.json l78l12acz-ap: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
l78l12acz-ap-etched.glb l78l12acz-ap: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
l78l12acz-ap-etched.step l78l12acz-ap: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
l78l12acz-ap.glb Publish 0.1.0 · Ray 11d ago
l78l12acz-ap.kicad_mod Publish 0.1.0 · Ray 11d ago
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README.md Initial commit: component/l78l12acz-ap · Ray 11d ago

L78L12ACZ-AP

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3

L78L12ACZ-AP from STMicroelectronics, in a TO-92-3. 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 VOUT power_out Regulated output voltage pin providing the fixed 12 V output, delivering up to 100 mA when adequate heat-sinking is provided.
2 GND power_in Ground reference pin for the regulator.
3 VIN power_in Unregulated DC input voltage pin, rated up to 35 V absolute maximum for the 12 V output version.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-92-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: L78L12ACZ-AP
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: l78l12acz-ap-etched.step / l78l12acz-ap-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l78l12acz-ap.step / l78l12acz-ap.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (45 pp, sha256 43922ae159face7e, retrieved 2026-09-24, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-5 (text+vision), consensus claude-opus-4-8 (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