Microsemi Corporation
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LX8385-33IDD
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LX8385-33IDD

Product Overview

Category

The LX8385-33IDD belongs to the category of voltage regulators.

Use

It is used to regulate voltage in electronic circuits and systems.

Characteristics

  • Input Voltage Range: 4.3V to 20V
  • Output Voltage: 3.3V
  • Maximum Output Current: 1.5A
  • Low Dropout Voltage: 300mV at 1.5A
  • Low Quiescent Current: 75µA
  • Thermal Shutdown and Current Limit Protection

Package

The LX8385-33IDD comes in a TO-252-3 package.

Essence

This voltage regulator is essential for maintaining a stable voltage supply in various electronic applications.

Packaging/Quantity

It is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.3V to 20V
  • Output Voltage: 3.3V
  • Output Current: 1.5A
  • Dropout Voltage: 300mV at 1.5A
  • Quiescent Current: 75µA
  • Package Type: TO-252-3

Detailed Pin Configuration

The LX8385-33IDD has three pins: 1. Input (VIN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (VOUT): Provides the regulated output voltage.

Functional Features

  • Low Dropout Voltage: Ensures efficient regulation even when the input voltage is only slightly higher than the output voltage.
  • Low Quiescent Current: Minimizes power consumption in standby or idle modes.
  • Thermal Shutdown and Current Limit Protection: Protects the device from overheating and excessive current.

Advantages and Disadvantages

Advantages

  • High efficiency
  • Wide input voltage range
  • Thermal and current protection features

Disadvantages

  • Higher cost compared to standard linear regulators
  • Sensitive to input voltage fluctuations

Working Principles

The LX8385-33IDD operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The LX8385-33IDD is suitable for various applications including: - Battery-powered devices - Industrial control systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models to the LX8385-33IDD include: - LM1117-3.3 - LT1086-3.3 - ADP3338-3.3

In conclusion, the LX8385-33IDD is a versatile voltage regulator with a wide input voltage range, low dropout voltage, and thermal protection features, making it suitable for a range of electronic applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LX8385-33IDD en soluciones técnicas

  1. What is LX8385-33IDD?

    • LX8385-33IDD is a high-performance 3.3V voltage regulator with a maximum dropout of 0.6V at 5A load current.

  2. What are the key features of LX8385-33IDD?

    • The key features include low dropout voltage, low ground current, fast transient response, and thermal shutdown protection.

  3. What are the typical applications of LX8385-33IDD?

    • Typical applications include post-regulation for switching DC/DC converter modules, battery-powered systems, and other general-purpose 3.3V linear regulators.

  4. How does LX8385-33IDD handle thermal management?

    • LX8385-33IDD incorporates thermal shutdown and current limit protection to ensure safe operation under fault conditions.

  5. What is the input voltage range for LX8385-33IDD?

    • The input voltage range is from 4.5V to 20V, making it suitable for various power supply designs.

  6. What is the output voltage accuracy of LX8385-33IDD?

    • The output voltage accuracy is typically ±1%, providing stable and reliable voltage regulation.

  7. Can LX8385-33IDD be used in automotive applications?

    • Yes, LX8385-33IDD is suitable for automotive applications due to its wide input voltage range and robust design.

  8. Does LX8385-33IDD require external components for operation?

    • Yes, LX8385-33IDD requires external capacitors for stability and proper operation.

  9. What is the maximum output current of LX8385-33IDD?

    • The maximum output current is 5A, making it suitable for powering a wide range of loads.

  10. Is LX8385-33IDD available in different package options?

    • Yes, LX8385-33IDD is available in various package options, including TO-220, TO-263, and DDPAK, offering flexibility for different system designs.