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LM4128AMFX-2.5
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LM4128AMFX-2.5

Product Overview

Category

The LM4128AMFX-2.5 belongs to the category of voltage references.

Use

It is primarily used as a precision voltage reference in various electronic circuits.

Characteristics

  • High accuracy and stability
  • Low temperature coefficient
  • Low dropout voltage
  • Low output noise

Package

The LM4128AMFX-2.5 comes in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of LM4128AMFX-2.5 lies in its ability to provide a stable and accurate voltage reference, ensuring reliable performance in electronic systems.

Packaging/Quantity

The LM4128AMFX-2.5 is typically available in reels containing 3000 units.

Specifications

  • Output Voltage: 2.5V
  • Initial Accuracy: ±0.1%
  • Temperature Coefficient: 50ppm/°C
  • Dropout Voltage: 200mV (typical)
  • Output Noise: 35µVrms (10Hz to 100kHz)

Detailed Pin Configuration

The LM4128AMFX-2.5 has three pins:

  1. VOUT: Output voltage pin
  2. GND: Ground pin
  3. VIN: Input voltage pin

Functional Features

  • High precision voltage reference
  • Low power consumption
  • Wide operating temperature range (-40°C to +125°C)
  • Excellent line and load regulation
  • Fast start-up time

Advantages and Disadvantages

Advantages

  • High accuracy and stability ensure reliable performance
  • Low dropout voltage minimizes power dissipation
  • Low output noise reduces interference in sensitive applications
  • Small package size allows for space-efficient designs

Disadvantages

  • Limited output voltage options (only 2.5V in this case)
  • Sensitive to input voltage fluctuations

Working Principles

The LM4128AMFX-2.5 utilizes a bandgap reference circuit to generate a stable voltage output. It compensates for temperature variations and provides a precise reference voltage that remains constant over a wide range of operating conditions.

Detailed Application Field Plans

The LM4128AMFX-2.5 finds applications in various fields, including:

  1. Precision measurement instruments
  2. Data acquisition systems
  3. Industrial control systems
  4. Portable electronic devices
  5. Battery-powered equipment
  6. Medical devices

Detailed and Complete Alternative Models

  1. LM4040AIM3-2.5: 2.5V precision shunt voltage reference
  2. LT1236ACS8-2.5: 2.5V micropower precision series voltage reference
  3. REF5025AIDGKT: 2.5V precision voltage reference with integrated gain and temperature compensation

These alternative models offer similar functionality and can be considered as substitutes for the LM4128AMFX-2.5 in different applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LM4128AMFX-2.5 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LM4128AMFX-2.5 in technical solutions:

  1. Q: What is LM4128AMFX-2.5? A: LM4128AMFX-2.5 is a low dropout voltage regulator (LDO) IC that provides a fixed output voltage of 2.5V.

  2. Q: What is the input voltage range for LM4128AMFX-2.5? A: The input voltage range for LM4128AMFX-2.5 is typically between 2.7V and 12V.

  3. Q: What is the maximum output current of LM4128AMFX-2.5? A: The maximum output current of LM4128AMFX-2.5 is 150mA.

  4. Q: Can LM4128AMFX-2.5 be used in battery-powered applications? A: Yes, LM4128AMFX-2.5 can be used in battery-powered applications as it has a low quiescent current and operates at low dropout voltages.

  5. Q: Is LM4128AMFX-2.5 suitable for noise-sensitive applications? A: Yes, LM4128AMFX-2.5 is designed with excellent power supply rejection ratio (PSRR) and low output noise, making it suitable for noise-sensitive applications.

  6. Q: Can LM4128AMFX-2.5 handle temperature variations? A: Yes, LM4128AMFX-2.5 is designed to operate over a wide temperature range, typically from -40°C to +125°C.

  7. Q: Does LM4128AMFX-2.5 require any external components for operation? A: Yes, LM4128AMFX-2.5 requires a minimum of two external capacitors for stability and proper operation.

  8. Q: Can LM4128AMFX-2.5 be used in automotive applications? A: Yes, LM4128AMFX-2.5 is qualified for automotive applications and meets the necessary standards.

  9. Q: What is the dropout voltage of LM4128AMFX-2.5? A: The typical dropout voltage of LM4128AMFX-2.5 is 200mV at 150mA load current.

  10. Q: Is LM4128AMFX-2.5 available in different package options? A: Yes, LM4128AMFX-2.5 is available in various package options, including SOT-23 and SC70, providing flexibility for different PCB layouts and space constraints.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.