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Contents

README

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LDLN025M12R

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

LDLN025M12R 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 VIN power_in LDO supply voltage input with operating range of 1.5 V to 5.5 V.
2 GND power_in Ground reference.
3 EN input Enable input; set high to turn on the device, low to turn off; internally pulled down via 1 MΩ resistor.
4 NC unconnected Not internally connected pin; can be connected to GND.
5 VOUT power_out LDO regulated output voltage with maximum output current of 250 mA and versions from 1 V to 5 V in 50 mV steps.

Key specifications

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

CAD (KiCad official)

  • Symbol: LDLN025M12R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: ldln025m12r-etched.step / ldln025m12r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ldln025m12r.step / ldln025m12r.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (27 pp, sha256 b71eeee4c541f04a, 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