component

TL431G

Public Made by Adom

by adom

UMW Voltage Reference, SOT-23. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tl431gfactory-2.0.0extractor-text
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TL431G

UMW · Voltage Reference · SOT-23

TL431G from UMW, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ANODE output Regulated shunt regulator output terminal; output voltage set from 2.495V to 36V using external feedback resistor divider.
2 REF input Reference feedback input terminal; accepts 2.483V to 2.508V from external resistor divider to establish output voltage regulation setpoint.
3 CATHODE power_in Unregulated supply voltage input terminal; accepts 0.5V to 36V with minimum operating current 0.5mA and continuous maximum current 100mA.

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-23
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TL431G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tl431g-etched.step / tl431g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl431g.step / tl431g.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (11 pp, sha256 b70eadfe49120088, retrieved 2026-10-22, tier: lcsc)
  • 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