component
TL431ACL5T
Public Made by Adomby adom
STMicroelectronics Voltage References, SOT-23-5. Pinout reviewed by a person against the datasheet, 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
markdownTL431ACL5T
STMicroelectronics · Voltage References · SOT-23-5
TL431ACL5T 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 | Anode | power_in | Anode terminal; connection to high-side supply voltage (operating voltage Vref to 36 V relative to cathode). |
| 2 | NC | unconnected | No connect; unused internal connection. |
| 3 | Ref | input | Reference input pin for voltage divider feedback network that programs the regulated output voltage (reference input current -0.05 to +10 mA, absolute maximum per Table 1). |
| 4 | NC | unconnected | No connect; unused internal connection. |
| 5 | Cathode | output | Cathode terminal; regulated reference output point where the device sinks current from anode with capability of 1 to 100 mA (sink current per Table 2, page 4). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-5 |
| Category | Power Supply Chip |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
TL431ACL5T - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
tl431acl5t-etched.step/tl431acl5t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl431acl5t.step/tl431acl5t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (22 pp, sha256
d174b1869a9d426d, 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).