LM431CIM3
Voltage References 2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator 3-SOT-23 -40 to 85LM431CIM3
Voltage References 2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator 3-SOT-23 -40 to 85
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Manufacturer Part # : LM431CIM3
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Package/Case: SOT23-3
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Brand: Texas Instruments
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Product Categories : Voltage Reference
Quality Assurance
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Shipping & Payment
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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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LM431CIM3 DataSheet
Pricing (USD)
Quantity | Unit Price | Ext. Price |
---|---|---|
1 | $0.841 | $0.84 |
200 | $0.326 | $65.20 |
500 | $0.314 | $157.00 |
1000 | $0.308 | $308.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
The LM431CIM3's temperature stability and adjustable output voltage, along with its compact packaging options, make it a versatile component for various voltage regulation applications. Its sharp turnon characteristics and high reliability position it as a cost-effective alternative to traditional Zener diode solutions, making it an excellent choice for design engineers looking for efficiency and performance in their electronic systems
Key Features
- Low Dropout Voltage Operation
- Compact SOT-23 Package for Space Savings
- Excellent Regulated Power Supply Performance
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 |
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 LM431CIM3?
The LM431CIM3 is a programmable shunt voltage reference integrated circuit manufactured by Texas Instruments. It is commonly used in a wide variety of precision voltage regulation and monitoring applications, including as a voltage reference for linear and switch-mode power supplies, voltage monitoring in battery charging circuits, and precision analog circuit applications.
How Does LM431CIM3 Work?
The LM431CIM3 operates by comparing a reference voltage with an external voltage and then controlling the current through an external resistor to maintain a stable output voltage. It functions as a precision adjustable shunt regulator, providing a stable voltage reference for system operation. By adjusting the external resistor, the output voltage can be precisely set to the desired value.
How Many Pins does LM431CIM3 have and What are the Functions of the Pinout Configuration?
The LM431CIM3 is housed in a 3-pin SOT-23 package. The pinout configuration includes:
- Cathode (C): Output pin that connects to the load.
- Anode (A): Reference voltage input pin.
- Cathode (C): Reference voltage output pin.
What are the Pros and Cons of LM431CIM3?
Pros:
- Precision: Offers high accuracy and stability in voltage regulation applications.
- Adjustable Output: Allows for easy and precise setting of the output voltage.
- Low Cost: Provides a cost-effective solution for voltage reference and regulation needs.
- Wide Voltage Range: Supports a wide input voltage range for versatile applications.
Cons:
- Temperature Sensitivity: Output voltage may drift with temperature variations, requiring compensation in some applications.
- External Components: Requires an external resistor for setting the output voltage, adding complexity to the circuit design.
Are There Any Equivalents/Alternatives to LM431CIM3 for Recommendation?
- The TL431 from Texas Instruments is a similar programmable shunt voltage reference that can be used as an alternative to the LM431CIM3.
- Alternative options to the LM431CIM3 include the LM4040 from Texas Instruments and the MAX6003 from Maxim Integrated.
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