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Contents

README

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LD39150PT-R

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-5

LD39150PT-R from STMicroelectronics, in a TO-252-5. 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 VINH input Inhibit input voltage; ON MODE when VINH ≥ 2 V, OFF MODE when VINH ≤ 0.3 V; must not be left floating.
2 VI power_in LDO input voltage with operating range 2.5 V to 6 V; 1 µF input capacitor required within 0.5'' distance from pin.
3 GND power_in Common ground reference.
4 VO power_out LDO output voltage pins requiring minimum 2.2 µF output capacitor for stability; maximum rated output current 1.5 A.
5 ADJ input Error amplifier input pin for adjustable output voltage setting from 1.22 to 5.0 V.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-252-5
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: LD39150PT-R
  • Footprint: Package_TO_SOT_SMD:TO-252-5_TabPin6
  • 3D model: TO-252-5 (KiCad packages3D, STEP)
  • 3D model files: ld39150pt-r-etched.step / ld39150pt-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ld39150pt-r.step / ld39150pt-r.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (26 pp, sha256 192436e5c6ebd242, retrieved 2026-09-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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