component
TL431BILP
Public Made by Adomby adom
Texas Instruments Voltage Reference, TO-92-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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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README
markdownTL431BILP
Texas Instruments · Voltage Reference · TO-92-3
TL431BILP from Texas Instruments, in a TO-92-3. 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 | CATHODE | output | Parallel regulation output pin accommodating input voltages from Vref (2.5V) to 36V with continuous cathode current rating of 1-100mA and typical output impedance of 0.2Ω. |
| 2 | ANODE | power_in | Anode (common return) pin typically connected to system ground and serving as the 0V reference for cathode voltage measurements in parallel regulation circuits. |
| 3 | REF | input | Reference threshold input pin with nominal internal voltage of 2.495V (min 2.483V, max 2.507V for TL431B grade) relative to anode and minimum input current requirement of 2µA for proper linear operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-92-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
TL431BILP - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
tl431bilp-etched.step/tl431bilp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl431bilp.step/tl431bilp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (86 pp, sha256
313277b9351e61ed, retrieved 2026-09-23, 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: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).