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Contents

README

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L78L24ACZ-AP

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

L78L24ACZ-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 24 V output (±4% at 25 °C for the A grade), delivering up to 100 mA, with a 0.1 µF output capacitor used in the test circuit.
2 GND power_in Ground reference for the regulator, common to input and output.
3 VIN power_in Unregulated input voltage, absolute maximum 40 V for the 18 to 24 V versions, with a 0.33 µF input capacitor used in the test circuit.

Key specifications

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

CAD (KiCad official)

  • Symbol: L78L24ACZ-AP
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: l78l24acz-ap-etched.step / l78l24acz-ap-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l78l24acz-ap.step / l78l24acz-ap.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (45 pp, sha256 e51fd7c5d0b25a9d, retrieved 2026-10-01, 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