LM431AIZ/NOPBIn StockTexas Instruments
The LM431AIZ/NOPB is an adjustable precision Zener shunt regulator with 0.5%, 1%, or 2% accuracy, output voltage range of 2.495V to 36V, and 100mA max output current. From $0.0626, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LM431AIZ/NOPB Datasheet PDF
- Category
- Undefined or Miscellaneous
- Price
- From $0.0626(MOQ 1000)
- 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 2.495V to 36V via two external resistors
- High accuracy options: 0.5%, 1%, or 2% initial tolerance
- 100mA maximum output current for versatile load driving
- Low dynamic impedance for stable voltage regulation
- Compatible with Pb-free (RoHS) packaging requirements
Applications
The LM431AIZ/NOPB is widely used in power supply regulation circuits, voltage reference applications, and feedback control loops in switching regulators. It is ideal for battery-powered devices requiring precise voltage references, as well as in industrial and consumer electronics where tight voltage accuracy is critical. Additional applications include error amplifiers in isolated DC-DC converters and LED current regulators.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 2.495 TO 36V WITH TWO EXTERNAL RESISTORS |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | O-PBCY-T3 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 2.55V |
| Output Voltage-Min | 2.44V |
| Output Voltage-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| 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 | 97ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Trim/Adjustable Output | YES |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
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 LM431AIZ/NOPB?
The LM431AIZ/NOPB supports an adjustable output voltage from 2.495V to 36V. This is achieved by connecting two external resistors to set the desired regulation voltage, making it highly flexible for a wide range of power supply designs.
What accuracy grades are available for the LM431AIZ/NOPB?
The LM431AIZ/NOPB is available in three accuracy grades: 2%, 1%, and 0.5% initial voltage tolerance. The 0.5% grade is suitable for precision applications where tight voltage regulation is critical, while the 2% grade is cost-effective for less demanding designs.
What are the typical applications for the LM431AIZ/NOPB?
The LM431AIZ/NOPB is commonly used as a voltage reference in switching power supplies, error amplifiers in isolated DC-DC converters, shunt regulators in linear power supplies, and LED current regulators. Its wide voltage range and precision make it suitable for industrial, consumer, and automotive electronics.
What package type does the LM431AIZ/NOPB come in, and is it RoHS compliant?
The LM431AIZ/NOPB is available in a TO-92 (PBCY-T3) through-hole package and is fully Pb-free (RoHS compliant), meeting JESD-609 e3 standards. This makes it suitable for environmentally conscious designs and modern manufacturing processes.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.5550 | $555.00 |
| 1800+ | $0.5390 | $970.20 |
| 2960+ | $0.0676 | $200.10 |
| 3845+ | $0.0651 | $250.31 |
| 4795+ | $0.0626 | $300.17 |
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