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Contents

README

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LE33CZ-TR

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

LE33CZ-TR from STMicroelectronics, in a TO-92. 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 VOUT power_out Regulated output voltage pin (3.3 V nominal for LE33CZ), requires a 2.2 µF capacitor for stability.
2 GND power_in Ground reference pin for the regulator.
3 VIN power_in Unregulated DC input voltage pin, up to 18 V operating (20 V absolute maximum).

Key specifications

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

CAD (KiCad official)

  • Symbol: LE33CZ-TR
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: le33cz-tr-etched.step / le33cz-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); le33cz-tr.step / le33cz-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (24 pp, sha256 9f9072116adaa7c3, retrieved 2026-09-23, tier: manufacturer)
  • 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