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LK112M80TR

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

LK112M80TR from STMicroelectronics, in a SOT-23-5L. 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 SHDN input Shutdown input that disables the regulator when connected to GND or to positive voltage less than 0.6 V.
2 GND power_in Ground pin internally connected to die attach flag to decrease total thermal resistance and increase package thermal dissipation capability.
3 Bypass passive Bypass pin for optional external 0.1 µF capacitor to reduce output noise to 30 µVrms.
4 OUT power_out Regulated output port with 8.0 V nominal output at ±2% accuracy and maximum 150 mA output current.
5 IN power_in Input power supply port accepting voltage from VOUT + 0.5 to 14 V for VOUT > 2 V or from 2.5 to 14 V for VOUT < 2 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-5L
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LK112M80TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: lk112m80tr-etched.step / lk112m80tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lk112m80tr.step / lk112m80tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (18 pp, sha256 fc1c9dfacf62927c, retrieved 2026-10-06, 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