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Contents

README

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LM1084MDT-3.3

HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2

LM1084MDT-3.3 from HGSEMI, in a TO-252-2. 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 GND/ADJ power_in Ground pin on the fixed-output versions such as the 3.3V part, and the ADJ reference pin on the adjustable version.
2 VOUT power_out Regulated output voltage pin, connected to the package tab, requiring at least a 22µF tantalum output capacitor for stability.
3 VIN power_in Input operating voltage pin with an absolute maximum of 20V and a recommended 12V.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-252-2
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LM1084MDT-3.3
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2 (KiCad packages3D, STEP)
  • 3D model files: lm1084mdt-3-3-etched.step / lm1084mdt-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1084mdt-3-3.step / lm1084mdt-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (10 pp, sha256 6982d7dc69dbce8b, retrieved 2026-10-27, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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