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LM431BIM3X/NOPB
Voltage References ADJ PREC ZENER SHUNT REG
LM431BIM3X/NOPB
Voltage References ADJ PREC ZENER SHUNT REG
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Manufacturer Part # : LM431BIM3X/NOPB
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Package/Case: SOT23-3
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Brand: Texas Instruments
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Product Categories : Voltage Reference
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
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LM431BIM3X/NOPB DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $0.536 | $0.54 |
| 10 | $0.444 | $4.44 |
| 30 | $0.399 | $11.97 |
| 100 | $0.354 | $35.40 |
| 500 | $0.305 | $152.50 |
| 1000 | $0.291 | $291.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
The LM431BIM3X/NOPB is a versatile 3-terminal adjustable shunt regulator that offers precise temperature stability across its entire operating temperature range. By utilizing two external resistors in a voltage divider network, users can easily set the output voltage to any level above 2.5V (VREF) up to 36V. The device's sharp turnon characteristics make it a convenient and efficient replacement for various Zener diode applications. With its compact size and availability in space-saving SOIC-8, SOT-23, and TO-92 packages, the LM431 is a practical choice for a wide range of electronic designs
Key Features
- Safe Operating Range Indicator
- Rapid Shutdown in Case of Faults
- Fault-Tolerant Operation Available
- Preset Current Limiting for Safety
- High Efficiency Performance Guaranteed
- Low Power Consumption for Long Life
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| VO (V) | 2.5 | Initial accuracy (max) (%) | 0.5, 1, 2 |
| VO adj (min) (V) | 2.5 | VO adj (max) (V) | 36 |
| Iz for regulation (min) (µA) | 400 | Reference voltage (V) | adjustable |
| Rating | Catalog | Temp coeff (max) (ppm/°C) | 97 |
| Operating temperature range (°C) | -40 to 85, 0 to 70 | Iout/Iz (max) (mA) | 100 |
Specification Comparison
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM431BIM3X/NOPB?
The LM431BIM3X/NOPB is a programmable precision voltage reference integrated circuit manufactured by Texas Instruments. It provides a stable reference voltage for various applications such as precision voltage regulation, voltage monitoring, and feedback control circuits.
How Does LM431BIM3X/NOPB Work?
The LM431BIM3X/NOPB operates by comparing the input voltage with a programmable internal reference voltage and adjusting the output accordingly. It can be programmed to generate a precise output voltage by connecting external resistors, providing flexibility in setting the desired reference voltage.
How Many Pins does LM431BIM3X/NOPB have and What are the Functions of the Pinout Configuration?
The LM431BIM3X/NOPB is housed in a 3-pin SOT-23 (Small Outline Transistor) package. The pinout configuration includes:
- Pin 1 (Anode): Reference voltage input.
- Pin 2 (Cathode): Output voltage pin.
- Pin 3 (Adjust): Feedback pin for external resistor connection to program the reference voltage.
What are the Pros and Cons of LM431BIM3X/NOPB?
Pros:
- Precision: Offers high precision and stability in generating reference voltages.
- Programmable Output: Can be easily programmed to generate different reference voltages according to application requirements.
- Wide Operating Range: Works over a wide temperature range and voltage supply.
- Cost-Effective: Provides an affordable solution for voltage reference needs.
- Space-Saving SOT-23 Package: Compact and space-efficient package for easy integration into small designs.
Cons:
- External Component Dependency: Requires external resistors for programming the reference voltage.
- Accuracy Drift: Reference voltage accuracy may drift over time and temperature changes.
Are There Any Equivalents/Alternatives to LM431BIM3X/NOPB for Recommendation?
- The LM4040 from Texas Instruments is a similar precision voltage reference IC.
- Alternatives to the LM431BIM3X/NOPB include the REF01 from Analog Devices and the LT1461 from Linear Technology.
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