Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

TS431IYLT

STMicroelectronics · Voltage Reference · SOT-23-5

TS431IYLT from STMicroelectronics, in a SOT-23-5. 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 NC unconnected No connect; leave unconnected in all applications.
2 NC* unconnected No connect; datasheet states do not connect this pin or connect it to Anode.
3 Cathode passive Regulated cathode terminal; maintains VKA = 1.24-6 V while sinking Ik = 0.06-30 mA; maximum continuous cathode current 40 mA, max VKA 10 V.
4 Reference input High-impedance reference (feedback) input that sets the output voltage via external resistor divider; Iref typ 70 nA, max 160 nA at Ik = 10 mA.
5 Anode power_in Anode (GND-side) return terminal; VKA measured from cathode to this pin; connect to circuit ground.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: TS431IYLT
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ts431iylt-etched.step / ts431iylt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ts431iylt.step / ts431iylt.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (16 pp, sha256 ec56fdab04a9692d, retrieved 2026-09-29, 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