LM431AIM/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM431AIM/NOPB is a 2%, 1%, or 0.5% accuracy adjustable precision Zener shunt regulator with output voltage range of 2.495V to 36V, 100mA output current, and low dynamic impedance. Ideal for power supplies and voltage references. From $0.4937, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM431AIM/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4937(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM431AIM/NOPB?
- Adjustable output voltage from 2.495V to 36V using two external resistors
- High accuracy options: 2%, 1%, or 0.5% voltage tolerance
- 100mA maximum output current with low dynamic impedance
- Available in compact Small Outline Package (SOIC-8) for space-constrained designs
- Pb-free, RoHS-compliant (e3 JEDEC code) for environmental compliance
What is LM431AIM/NOPB used for?
The LM431AIM/NOPB is widely used as a precision voltage reference and shunt regulator in power supply circuits, DC-DC converters, and battery management systems. It is commonly employed in feedback control loops for switching regulators and linear power supplies where accurate voltage regulation is critical. Additional applications include programmable voltage references, op-amp power supplies, and voltage monitoring circuits in industrial and consumer electronics.
What are the specifications of LM431AIM/NOPB?
| 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 | R-PDSO-G8 |
| 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 | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 37V |
| Supply Voltage-Min (Vsup) | 2.44V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 97ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM431AIM/NOPB datasheet?
LM431AIM/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM431AIM/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage range of the LM431AIM/NOPB?
The LM431AIM/NOPB supports an adjustable output voltage from 2.495V to 36V. The output voltage is set using two external resistors connected to the reference (REF) pin, giving designers flexible control over the regulation target in their circuit.
What accuracy grades are available for the LM431AIM/NOPB?
The LM431AIM/NOPB is available in three accuracy grades: standard 2%, improved 1%, and high-precision 0.5%. The 'A' designation in the part number denotes the 1% accuracy grade, making it suitable for applications requiring tighter voltage regulation tolerances.
What package does the LM431AIM/NOPB come in and what does the suffix mean?
The LM431AIM/NOPB is housed in an 8-pin Small Outline Integrated Circuit (SOIC-8) package. The 'M' suffix denotes the SOIC-8 package, and '/NOPB' indicates it is a lead-free (Pb-free), RoHS-compliant version per Texas Instruments' green packaging standard.
What are typical applications for the LM431AIM/NOPB?
Typical applications include precision voltage references, feedback regulation in switching power supplies, error amplifiers in DC-DC converters, battery charger circuits, and programmable shunt regulators. Its adjustable nature and high accuracy make it suitable for both industrial and consumer power management designs.
What is the maximum output current of the LM431AIM/NOPB?
The LM431AIM/NOPB supports a maximum output (cathode) current of 100mA (0.1A). This makes it adequate for driving small loads directly or serving as a reference in feedback loops where the actual load current is handled by a pass transistor or other power device.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0570 | $2.06 |
| 5+ | $0.9900 | $4.95 |
| 10+ | $0.9000 | $9.00 |
| 25+ | $0.7800 | $19.50 |
| 51+ | $0.5785 | $29.50 |
| 174+ | $0.4937 | $85.90 |
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