LM431ACM3X

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LM431ACM3X

IC VREF SHUNT ADJ 2.2% SOT23-3

  • Manufacturer
  • Mfr. Part #LM431ACM3X
  • Package
  • Datasheet
  • In Stock5669

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Specifications

Part Status Obsolete
Base Product Number LM431
Reference Type Shunt
Output Type Adjustable
Voltage - Output (Min/Fixed) 2.495V
Current - Output 100 mA
Tolerance ±2.2%
Temperature Coefficient 50ppm/°C Typical
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3
Packaging Cut Tape (CT), Tape & Reel (TR)
Voltage - Output (Max) 37 V
Current - Cathode 1 mA

Overview

Description

The LM431ACM3X is a programmable shunt voltage regulator designed for precise voltage regulation in various electronic applications. It features a three-terminal configuration and provides an adjustable output voltage range from 1.25V to 37V. The device operates with a high accuracy of ±1% over a specified temperature range, making it ideal for use in power supplies, battery management systems, and reference voltage applications.
Key features include low output impedance, a wide input voltage range, and the ability to operate in a variety of environments, including industrial and automotive applications. The LM431ACM3X can stabilize output voltage against variations in load current and supply voltage, ensuring reliable performance.
This component is available in a compact SOT-23 package, making it suitable for space-constrained designs. Its versatility and reliability make the LM431ACM3X a popular choice among engineers for precision voltage regulation tasks.

Features

The LM431ACM3X is a precision voltage reference and adjustable shunt regulator designed for a variety of applications. Key features include:
1. Adjustable Output Voltage: It offers an adjustable output voltage from 1.24V to 37V, allowing flexibility in design.
2. Low Output Impedance: The device provides low output impedance, ensuring stable performance across a range of load conditions.
3. High Accuracy: It features a high accuracy of ±1% at 25°C, ensuring reliable voltage reference performance.
4. Wide Temperature Range: Operating temperature range spans from -40°C to 85°C, suitable for various environments.
5. Low Temperature Drift: The device has low temperature coefficient, enhancing stability over temperature changes.
6. Built-in Zener Functionality: It can operate in shunt mode, making it versatile for voltage regulation applications.
7. Package Options: Available in SOT-23-3 and other packages, facilitating integration into compact designs.
Overall, the LM431ACM3X is ideal for power management, signal processing, and other applications requiring precise voltage regulation.

Package

The LM431ACM3X is packaged in a surface-mount SOP-3 (Small Outline Package) configuration.

Pinout

The LM431ACM3X is a programmable shunt voltage reference with a pin count of 3.
Pin Functions:
1. Ref (Reference): This pin provides a stable voltage reference (typically 2.5V) and is used for feedback in various applications.
2. Anode: This pin connects to the negative side of the output load, allowing the device to sink current.
3. Cathode: This pin connects to the positive side of the output load, where the output voltage is taken. It also allows for the adjustment of the output voltage through external resistors.
The LM431ACM3X is commonly used in applications requiring precise voltage regulation, such as power supplies and analog circuits.

Manufacturer

The LM431ACM3X is manufactured by Texas Instruments (TI), a prominent global semiconductor company. Founded in 1930, Texas Instruments is known for designing and producing a wide range of semiconductor products, including analog ICs, embedded processors, and digital signal processors. The company serves various markets, including automotive, industrial, consumer electronics, and communications. TI is recognized for its innovation in analog and mixed-signal technologies, providing solutions that enhance performance and efficiency in electronic devices. The LM431ACM3X itself is a programmable shunt voltage reference, commonly used in power management and signal conditioning applications.

Application

The LM431ACM3X is a programmable shunt voltage reference used in various applications, including power supplies, voltage regulation, and precision reference circuits. It is commonly utilized for feedback control in switching power supplies, battery management systems, and as a reference in analog-to-digital converters. Its ability to provide a stable voltage reference makes it suitable for use in instrumentation and sensor applications as well.

Equivalent

The LM431ACM3X is a programmable shunt voltage reference. Equivalent products include:
1. TL431
2. LMV431
3. TLV431
4. LTC6700
These alternatives provide similar functionality as adjustable precision references but may vary in specifications like voltage range, current, and package types. Always consult the datasheet for exact compatibility.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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