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TLV431AE5TA
Public Made by Adomby adom
Diodes Incorporated Voltage References, SOT-25. Pinout cross-checked by two models 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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Contents
README
markdownTLV431AE5TA
Diodes Incorporated · Voltage References · SOT-25
TLV431AE5TA from Diodes Incorporated, in a SOT-25. 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 | N/C | unconnected | Listed as N/C on the SOT25 pin assignment with no function stated in the datasheet. |
| 2 | N/C | unconnected | Pin 2 is die-attached and electrically contacts pin 5, so it must be left floating or connected to pin 5 (ANODE). |
| 3 | CATHODE | passive | Cathode voltage VKA is rated 20 V absolute maximum and continuous cathode current -20 to +20 mA, with recommended operation from 0.1 mA to 15 mA. |
| 4 | REF | input | Reference input that regulates to VREF of 1.24 V, with reference input current range -0.05 to +3 mA. |
| 5 | ANODE | passive | Common anode terminal to which the voltage ratings are referenced, per the absolute maximum ratings note. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-25 |
| Category | Power Management ICs |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Cathode Voltage | VKA | 20 | V | 2 | |||
| Continuous Cathode Current | IKA | -20 | 20 | mA | 2 | ||
| Reference Input Current Range | IREF | -0.05 | 3 | mA | 2 | ||
| ESD Susceptibility HBM (Human Body Model) | ESD | 4 | kV | 2 | |||
| ESD Susceptibility MM (Machine Model) | ESD | 400 | V | 2 | |||
| ESD Susceptibility CDM (Charged Device Model) | ESD | 1 | kV | 2 | |||
| Operating Junction Temperature | TJ | -40 | 150 | °C | 2 | ||
| Storage Temperature | TSTG | -65 | 150 | °C | 2 | ||
| Cathode Voltage | VKA | 18 | V | 2 | |||
| Cathode Current | IKA | 0.1 | 15 | mA | 2 | ||
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | 2 | ||
| Junction-to-Ambient Thermal Resistance SOT25 | JA | 250 | °C/W | TA = +25°C, TJ = +150°C | 2 | ||
| Power Dissipation SOT25 | PDIS | 500 | mW | TA = +25°C, TJ = +150°C | 2 | ||
| Reference Voltage TLV431A at +25°C | VREF | 1.228 | 1.24 | 1.252 | V | VKA = VREF, TA = +25°C | 3 |
| Reference Voltage TLV431A over 0 to +70°C | VREF | 1.221 | 1.259 | V | VKA = VREF, TA = 0 to +70°C | 3 | |
| Reference Voltage TLV431A over -40°C to +85°C | VREF | 1.215 | 1.265 | V | VKA = VREF, TA = -40°C to +85°C | 3 | |
| Reference Voltage TLV431A over -40°C to +125°C | VREF | 1.209 | 1.271 | V | VKA = VREF, TA = -40°C to +125°C | 3 | |
| Deviation of Reference Voltage over 0 to +70°C | VREF(dev) | 4 | 12 | mV | VKA = VREF, TA = 0 to +70°C | 3 | |
| Deviation of Reference Voltage over -40°C to +85°C | VREF(dev) | 6 | 20 | mV | VKA = VREF, TA = -40°C to +85°C | 3 | |
| Deviation of Reference Voltage over -40°C to +125°C | VREF(dev) | 11 | 31 | mV | VKA = VREF, TA = -40°C to +125°C | 3 | |
| Ratio of Change in Reference Voltage to Change in Cathode Voltage (6V) | ΔVREF/ΔVKA | -1.5 | -2.7 | mV/V | VKA for VREF to 6V | 3 | |
| Ratio of Change in Reference Voltage to Change in Cathode Voltage (18V) | ΔVREF/ΔVKA | -1.5 | -2.7 | mV/V | VKA for VREF to 18V | 3 | |
| Reference Input Current | IREF | 0.15 | 0.5 | µA | R1 = 10kΩ, R2 = OC | 3 | |
| IREF Deviation Over 0 to +70°C | IREF(dev) | 0.05 | 0.3 | µA | R1 = 10kΩ, R2 = OC, TA = 0 to +70°C | 3 | |
| IREF Deviation Over -40°C to +85°C | IREF(dev) | 0.1 | 0.4 | µA | R1 = 10kΩ, R2 = OC, TA = -40°C to +85°C | 3 | |
| IREF Deviation Over -40°C to +125°C | IREF(dev) | 0.15 | 0.5 | µA | R1 = 10kΩ, R2 = OC, TA = -40°C to +125°C | 3 | |
| Minimum Cathode Current for Regulation over 0 to +70°C | IKMIN | 55 | 80 | µA | VKA = VREF, TA = 0 to +70°C | 3 | |
| Minimum Cathode Current for Regulation over -40°C to +85°C | IKMIN | 55 | 80 | µA | VKA = VREF, TA = -40°C to +85°C | 3 | |
| Minimum Cathode Current for Regulation over -40°C to +125°C | IKMIN | 55 | 100 | µA | VKA = VREF, TA = -40°C to +125°C | 3 | |
| Off-State Current | IK(OFF) | 0.001 | 0.1 | µA | VKA = 18V, VREF = 0 | 3 | |
| Dynamic Output Impedance | ZKA | 0.25 | 0.4 | Ω | VKA = VREF, f = <1kHz, IK = 0.1mA to 15mA | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 Weight: 0.009 grams (Approximate) | 16 |
CAD (KiCad official)
- Symbol:
TLV431AE5TA - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files:
tlv431ae5ta-etched.step/tlv431ae5ta-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tlv431ae5ta.step/tlv431ae5ta.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (17 pp, sha256
bfc6983112ce20da, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).