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Contents

README

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LF50ABDT-TR

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

LF50ABDT-TR from STMicroelectronics, in a DPAK. 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 OUTPUT power_out Regulated output voltage (nominal 5 V for LF50ABDT-TR); output current up to 500 mA, requires a 2.2 µF output capacitor for stability.
2 GND power_in Ground reference pin; the package tab/heatsink is electrically connected to this GND pin.
3 INPUT power_in DC input supply pin; operating input voltage range is 6 to 16 V (for the 5 V option) with an absolute maximum of -0.5 to 40 V (regulator shuts down for 18 V < VI < 40 V).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DPAK
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LF50ABDT-TR
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK (KiCad packages3D, STEP)
  • 3D model files: lf50abdt-tr-etched.step / lf50abdt-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lf50abdt-tr.step / lf50abdt-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (53 pp, sha256 307003c143a6294f, retrieved 2026-09-23, 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