component

LR8203A-T33

Public Made by Adom

by adom

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

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Symbol & Footprint

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Datasheet

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Contents

README

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LR8203A-T33

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

LR8203A-T33 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 for the regulator. Connect to system ground; place the input and output bypass capacitors' return currents close to this pin.
2 VOUT power_out Regulated output. Fixed 3.3V (±2%) for the -T33 option, supplying up to 300mA typical (450mA abs max). Requires a bypass capacitor (typ. 1uF) to GND for stability.
3 VIN power_in Input supply. Operating range up to 6.5V (absolute maximum 9V). Requires an input bypass capacitor (typ. 1uF) to GND. Minimum dropout ~200mV at 100mA / 320mV at 150mA.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LR8203A-T33
  • LR8203A-T33T28
  • LR8203A-T33T30

CAD (KiCad official)

  • Symbol: LR8203A-T33
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: lr8203a-t33-etched.step / lr8203a-t33-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr8203a-t33.step / lr8203a-t33.glb are the bare package body.

Provenance

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

  • Datasheet: LR datasheet (11 pp, sha256 d069de0d9675221c, 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