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LR1107G-33-AE3-3-R

Public Made by Adom

by adom

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

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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LR1107G-33-AE3-3-R

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

LR1107G-33-AE3-3-R from UTC Unisonic Tech, in a SOT-23. 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 VOUT power_out Regulated output voltage. Fixed 3.3V (voltage code '33') at up to 600mA DC with ±1.5% accuracy at 25°C. Requires a 22uF output capacitor for stability.
2 GND power_in Device ground reference. Typical ground pin current is ~200uA at 1mA load and ~300uA at 600mA load; ~0.02uA in shutdown.
3 VIN power_in Input supply, +2.5V to +7.0V operating (survival -0.3V to +7.5V). Should be bypassed with a 1uF input capacitor. Minimum VIN = VOUT(NOM) + Vdropout or 2.5V, whichever is greater.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LR1107G-xx-AE3-3-R
  • LR1107L-xx-AE3-3-R
  • LR1107G-xx-AA3-A-R
  • LR1107L-xx-AA3-A-R
  • LR1107G-xx-AB3-B-R
  • LR1107G-xx-AB3-C-R
  • LR1107G-xx-AB3-D-R
  • LR1107G-xx-AF5-R
  • LR1107EG-xx-AF5-R

CAD (KiCad official)

  • Symbol: LR1107G-33-AE3-3-R
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lr1107g-33-ae3-3-r-etched.step / lr1107g-33-ae3-3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr1107g-33-ae3-3-r.step / lr1107g-33-ae3-3-r.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lr1107g-33-ae3-3-r.step 59 KB You want the bare part, or you mark your own boards.
lr1107g-33-ae3-3-r-etched.step 2.7 MB You want the part with LR1107G-33-AE3-3-R already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 656 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (6 pp, sha256 dcd7c683029ade94, 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