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LR8323B-T33

Public Unreviewed

by Ray

LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. 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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LR8323B-T33

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

LR8323B-T33 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 Regulator input supply. Operating input up to 24V (absolute max 32V). Bypass with at least 1uF ceramic capacitor close to the pin; larger value recommended when supplied from a high-impedance source (e.g. battery).
2 GND power_in Device ground and reference for VIN, VOUT and CE. All voltages are referenced to this pin.
3 CE input Chip enable / ON-OFF control input. Drive high to enable the regulator, low to place the device into shutdown (I_SHD typ. ~0uA,
4 NC unconnected No internal connection. Leave floating or tie to GND for mechanical/thermal robustness.
5 VOUT power_out Regulated 3.3V fixed output (VOUT tolerance ±1%). Continuous 300mA rated output current with typ. 360mV dropout at 100mA. Requires at least 1uF ceramic output capacitor for stability; larger values help limit transient excursions.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LR8323B-T33
  • LR8323A-T33
  • LR8323A-T
  • LR8323A-M33
  • LR8323B-M33
  • LR8323A/B-M

CAD (KiCad official)

  • Symbol: LR8323B-T33
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lr8323b-t33.step 85 KB You want the bare part, or you mark your own boards.
lr8323b-t33-etched.step 2.5 MB You want the part with LR8323B-T33 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 583 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 b77bc732dac1e9b9, 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