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LD39015M18R

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by Ray

STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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LD39015M18R

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

LD39015M18R from STMicroelectronics, in a SOT-23-5. 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 IN power_in LDO input voltage supply. Operating range 1.5 V to 5.5 V (absolute max 7 V). Bypass with 1 μF ceramic to GND close to the pin.
2 GND power_in Common ground reference for the device. All voltages are referred to this pin.
3 EN input Enable logic input. Logic low (≤ 0.4 V) puts the regulator in shutdown (IQ < 1 μA); logic high (≥ 0.9 V) turns the output on. Turn-on time ~30 μs typ.
4 NC unconnected Not connected internally. Leave floating or tie to GND for mechanical stability.
5 OUT power_out Regulated output voltage (1.8 V nominal for LD39015M18R). Delivers up to 150 mA. Requires a 1 μF (min) ceramic output capacitor for stability; up to 22 μF supported.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LD39015M18RM08R
  • LD39015M18RM10R
  • LD39015M18RM12R
  • LD39015M18RM125R
  • LD39015M18RM15R
  • LD39015M18R
  • LD39015M18RM25R
  • LD39015M18RM33R

CAD (KiCad official)

  • Symbol: LD39015M18R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (15 pp, sha256 3f7482af11a2ca76, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF