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Contents

README

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LDK320ADU30R

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

LDK320ADU30R from STMicroelectronics, in a SOT-89-3. 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 GND power_in Common ground terminal establishing 0 V reference potential for all circuit voltage measurements.
2 IN power_in Input voltage supply terminal; operates from 2.5 V to 18 V DC; bypass with 1 μF capacitor for stability.
3 OUT power_out Regulated output voltage nominally 3.0 V ±0.5% at 25°C, supplying up to 200 mA with internal current limiting and thermal shutdown at 160°C.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-89-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LDK320ADU30R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ldk320adu30r-etched.step / ldk320adu30r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ldk320adu30r.step / ldk320adu30r.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (32 pp, sha256 26f60da8e9021885, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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