Linear Technology/Analog Devices
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
LT3023EDD
Zobrazit detail DataSheets

LT3023EDD

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, Low Noise, High PSRR
  • Package: DFN-8 (2mm x 3mm)
  • Essence: Linear Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 1.8V to 20V
  • Output Voltage Range: 1.22V to 19.5V
  • Dropout Voltage: 300mV at 500mA Load Current
  • Quiescent Current: 45µA
  • Line Regulation: ±0.02%
  • Load Regulation: ±0.1%
  • Ripple Rejection: 75dB at 1kHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3023EDD has a total of 8 pins:

  1. VIN: Input Voltage Pin
  2. GND: Ground Pin
  3. SHDN: Shutdown Pin
  4. FB: Feedback Pin
  5. VOUT: Output Voltage Pin
  6. NC: No Connection
  7. NC: No Connection
  8. VOUT: Output Voltage Pin

Functional Features

  • Low dropout voltage enables operation with small input-output differentials.
  • Low noise output suitable for sensitive applications.
  • High power supply rejection ratio (PSRR) minimizes the impact of input voltage variations on the output.
  • Shutdown pin allows for power-saving mode when not in use.

Advantages and Disadvantages

Advantages

  • Wide input voltage range provides flexibility in various applications.
  • Low quiescent current ensures efficient power consumption.
  • Excellent line and load regulation for stable output voltage.
  • Small package size allows for space-saving designs.

Disadvantages

  • Dropout voltage may limit the use in applications with low input-output differentials.
  • Limited output current capability compared to other regulators.

Working Principles

The LT3023EDD is a linear regulator that regulates the output voltage by adjusting the resistance between the input and output pins. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the resistance accordingly to maintain a stable output voltage. The dropout voltage is the minimum voltage difference required between the input and output for the regulator to operate properly.

Detailed Application Field Plans

The LT3023EDD is suitable for a wide range of applications, including but not limited to:

  1. Battery-powered devices: Provides regulated voltage for portable electronics.
  2. Industrial control systems: Ensures stable power supply for sensors and actuators.
  3. Automotive electronics: Regulates voltage for various automotive components.
  4. Communication equipment: Maintains stable power for wireless modules and networking devices.
  5. Medical devices: Provides reliable power for medical instruments and implants.

Detailed and Complete Alternative Models

  1. LT1763: Low Dropout Regulator with Adjustable Output Voltage
  2. LM1117: 1A Low Dropout Linear Regulator
  3. ADP3339: High PSRR, Low Dropout Linear Regulator
  4. MAX603: Ultra-Low Dropout Linear Regulator
  5. TPS7A47: 1A, Low Noise, High PSRR Linear Regulator

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

Word count: 358 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT3023EDD v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT3023EDD in technical solutions:

  1. Q: What is LT3023EDD? A: LT3023EDD is a low dropout (LDO) linear regulator IC that provides a regulated output voltage for various electronic applications.

  2. Q: What is the input voltage range of LT3023EDD? A: The input voltage range of LT3023EDD is typically between 2.5V and 20V.

  3. Q: What is the output voltage range of LT3023EDD? A: The output voltage range of LT3023EDD can be adjusted from 0.8V to 19.5V using external resistors.

  4. Q: What is the maximum output current of LT3023EDD? A: The maximum output current of LT3023EDD is 200mA.

  5. Q: Can LT3023EDD handle high input voltages? A: Yes, LT3023EDD can handle input voltages up to 20V, making it suitable for applications with higher input voltage requirements.

  6. Q: Is LT3023EDD suitable for battery-powered applications? A: Yes, LT3023EDD is designed to operate with low quiescent current, making it suitable for battery-powered applications where power efficiency is crucial.

  7. Q: Does LT3023EDD have built-in thermal shutdown protection? A: Yes, LT3023EDD has built-in thermal shutdown protection that prevents the IC from overheating under excessive load or high ambient temperature conditions.

  8. Q: Can LT3023EDD be used in automotive applications? A: Yes, LT3023EDD is automotive qualified and can be used in various automotive applications that require stable and regulated power supply.

  9. Q: What is the typical dropout voltage of LT3023EDD? A: The typical dropout voltage of LT3023EDD is around 300mV at full load, which means it can regulate the output voltage even when the input voltage is slightly lower than the desired output voltage.

  10. Q: Can LT3023EDD be used in noise-sensitive applications? A: Yes, LT3023EDD has excellent line and load regulation characteristics, making it suitable for noise-sensitive applications where a stable and clean power supply is required.

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