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LR8321A-T30

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by Ray

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

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Datasheet

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Contents

README

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LR8321A-T30

LR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

LR8321A-T30 from LR, in a SOT-23-3L. 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 GND power_in Ground reference pin. All voltages in the datasheet are referenced to this pin.
2 VOUT power_out Regulated output voltage pin. For the -T30 variant this is a fixed 3.0V output. Delivers up to 100mA typical (150mA max). Requires a 1uF output capacitor (COUT) to GND for stability.
3 VIN power_in Unregulated input supply pin. Operating input range up to 24V (32V absolute max). Requires a 1uF input capacitor (CIN) to GND. VIN must be at least VOUT + Vdropout (typ. 390mV @ 50mA, 750mV @ 100mA).

Key specifications

Parameter Value
Manufacturer LR
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LR8321A-T30T25
  • LR8321A-T30T27
  • LR8321A-T30
  • LR8321A-T30T33
  • LR8321A-T30T36
  • LR8321A-T30T40
  • LR8321A-T30T44
  • LR8321A-T30T50
  • LR8321A-T30M25
  • LR8321A-T30M27
  • LR8321A-T30M30
  • LR8321A-T30M33
  • LR8321A-T30M36
  • LR8321A-T30M40
  • LR8321A-T30M44
  • LR8321A-T30M50

CAD (KiCad official)

  • Symbol: LR8321A-T30
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LR datasheet (12 pp, sha256 75e1ff006d959d36, 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