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docs lr8323b-t50: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lr8323b-t50-etched.fit.json lr8323b-t50: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lr8323b-t50-etched.glb lr8323b-t50: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lr8323b-t50-etched.step lr8323b-t50: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lr8323b-t50.glb Publish 0.1.0 · Ray
lr8323b-t50.kicad_mod Publish 0.1.0 · Ray
lr8323b-t50.kicad_sym Publish 0.1.0 · Ray
lr8323b-t50.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lr8323b-t50.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lr8323b-t50: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md lr8323b-t50: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LR8323B-T50

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

LR8323B-T50 from LR, 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 VIN power_in Input supply pin. Accepts 5.0V+dropout up to 24V (32V absolute max). Requires ≥1µF ceramic bypass capacitor close to the pin.
2 GND power_in Device ground reference. All voltages are referenced to this pin.
3 CE input Chip Enable (active-high ON/OFF control). Drive high to enable the regulator, drive low (VCE=0V) to shut down (shutdown current ISHD ≤1µA). Do not leave floating.
4 NC unconnected No internal connection. Leave floating or tie to GND per PCB convenience.
5 VOUT power_out Regulated 5.0V output (T50 suffix). Delivers up to 300mA typical (450mA current limit). Requires ≥1µF ceramic output capacitor for stability and transient response.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LR8323B-T50
  • LR8323B-T50A-T50

CAD (KiCad official)

  • Symbol: LR8323B-T50
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: lr8323b-t50-etched.step / lr8323b-t50-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr8323b-t50.step / lr8323b-t50.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lr8323b-t50.step 85 KB You want the bare part, or you mark your own boards.
lr8323b-t50-etched.step 2.4 MB You want the part with LR8323B-T50 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 563 faces against 102 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: LR datasheet (11 pp, sha256 e63af50334fdca60, retrieved 2026-08-17, 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: 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