AN79L18ME1

Product Overview

Category

AN79L18ME1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• AN79L18ME1 is a low-dropout linear voltage regulator.
• It operates with an input voltage range of -35V to -10V.
• The output voltage is fixed at -18V.
• It has a maximum output current of 100mA.
• AN79L18ME1 offers excellent line and load regulation.

Package

The AN79L18ME1 comes in a TO-252 package, also known as DPAK (Plastic Packaged Surface Mount).

Essence

The essence of AN79L18ME1 lies in its ability to provide a stable and regulated -18V output voltage.

Packaging/Quantity

AN79L18ME1 is typically packaged in reels or tubes. The quantity per reel/tube varies depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: -35V to -10V
• Output Voltage: -18V
• Output Current: 100mA (maximum)
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.5% (maximum)
• Load Regulation: 1% (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

AN79L18ME1 has three pins:

1. Input Pin (VIN): Connects to the input voltage source.
2. Ground Pin (GND): Connected to the ground reference.
3. Output Pin (VOUT): Provides the regulated -18V output.

Functional Features

• Low dropout voltage ensures efficient voltage regulation even with small input-output differentials.
• Excellent line and load regulation characteristics maintain a stable output voltage under varying conditions.
• Overcurrent and thermal protection mechanisms safeguard the device from damage.
• AN79L18ME1 is designed to be compatible with a wide range of electronic circuits.

Advantages

• Provides a stable -18V output voltage.
• Low dropout voltage enables efficient regulation.
• Excellent line and load regulation characteristics ensure stability.
• Overcurrent and thermal protection enhance reliability.
• Compact TO-252 package allows for easy integration into circuit designs.

Disadvantages

• Limited maximum output current of 100mA.
• Input voltage range restricted to -35V to -10V.
• Not suitable for applications requiring higher output voltages.

Working Principles

AN79L18ME1 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance in the circuit. The regulator compares the output voltage with a reference voltage and adjusts the resistance accordingly to maintain a constant -18V output.

Detailed Application Field Plans

AN79L18ME1 finds applications in various electronic devices and systems, including:

1. Power supply units for audio amplifiers
2. Battery charging circuits
3. Industrial control systems
4. Automotive electronics
5. Communication equipment
6. LED lighting systems
7. Medical devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to AN79L18ME1 are:

1. LM317: A versatile adjustable voltage regulator.
2. LT1083: A high-current linear regulator with adjustable output voltage.
3. MC78XX: Series of fixed-output positive voltage regulators.

These alternative models offer similar functionality and can be used depending on specific requirements and design constraints.

Word count: 511 words