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LD39015M33R

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by Ray

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

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Datasheet

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Contents

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LD39015M33R

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

LD39015M33R from STMicroelectronics, in a SOT-23-5L. 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. Accepts 1.5 V to 5.5 V; requires a 1 µF ceramic input capacitor to ground for stability.
2 GND power_in Common ground reference for the regulator.
3 EN input Enable logic input. Drive low to put the LDO in shutdown mode (IQ < 1 µA); drive high to enable the regulator output. Must not be left floating.
4 NC unconnected Not connected internally. Leave floating or tie to any convenient net.
5 OUT power_out Regulated output voltage (3.3 V nominal for the M33R suffix, ±2.0% at 25 °C). Delivers up to 150 mA; requires a 1 µF ceramic output capacitor to ground for stability.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LD39015M33RM08R
  • LD39015M33RM10R
  • LD39015M33RM12R
  • LD39015M33RM125R
  • LD39015M33RM15R
  • LD39015M33RM18R
  • LD39015M33RM25R
  • LD39015M33R

CAD (KiCad official)

  • Symbol: LD39015M33R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (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: lcsc)
  • 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