TL431AILPR Texas Instruments Integrated Circuit (Other) In Stock
The TL431AILPR is an adjustable shunt voltage reference from Texas Instruments, offering precision output from 2.47 V to 36 V with up to 100 mA output current. It features tight initial accuracy and low noise, making it ideal for power supply regulation. Available from leading distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- TL431AILPR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable output voltage from 2.47 V to 36 V for flexible regulation designs
- Precision initial accuracy of ±0.5% for tight voltage reference applications
- Up to 100 mA output sink current capability in a compact SOT-23 tape-reel package
- Low dynamic impedance for stable operation in switching and linear power supplies
Applications
The TL431AILPR is widely used in power supply feedback circuits, battery chargers, and voltage monitoring systems where a precise and stable voltage reference is required. Its adjustable output range makes it suitable for industrial control equipment, consumer electronics, and telecommunications power management designs. Engineers also use it in shunt regulator applications and overvoltage protection circuits.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | O-XBCY-T3 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 2.52V |
| Output Voltage-Min | 2.47V |
| Output Voltage-Nom | 2.495V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SIP3,.1,50 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 92ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | BOTTOM |
| Trim/Adjustable Output | YES |
| Voltage Tolerance-Max | 1% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage range of the TL431AILPR?
The TL431AILPR provides an adjustable output voltage ranging from 2.47 V to 36 V, set by two external resistors. This wide range makes it versatile for a variety of voltage reference and regulation applications in industrial and consumer designs.
What is the maximum output current for the TL431AILPR?
The TL431AILPR can sink a maximum output current of 100 mA (0.1 A), making it suitable for use in shunt regulator topologies and feedback circuits that require moderate current handling without additional external transistors.
What package does the TL431AILPR come in and is it RoHS compliant?
The TL431AILPR is packaged in a small tape-and-reel format and is marked as Pb-free (RoHS compliant, JESD-609 code e3), making it suitable for modern lead-free manufacturing processes compliant with environmental regulations.
What are common applications for the TL431AILPR?
Common applications include switching power supply feedback control, linear voltage regulation, battery charger voltage references, overvoltage protection circuits, and precision voltage monitoring in industrial, telecommunications, and consumer electronics equipment.
Can the TL431AILPR be used as a replacement for a fixed voltage reference?
Yes, the TL431AILPR can replace fixed references by setting external resistors to program the desired output voltage. Its adjustable architecture offers more flexibility and typically lower cost compared to fixed-voltage reference ICs in the same voltage class.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”