AN77L12M-E1

Product Overview

Category

AN77L12M-E1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• AN77L12M-E1 is a low-dropout linear voltage regulator.
• It has a fixed output voltage of 12V.
• The device operates with a maximum input voltage of 35V.
• It provides a maximum output current of 100mA.
• AN77L12M-E1 offers excellent line and load regulation.

Package

The AN77L12M-E1 comes in a small surface mount package.

Essence

The essence of AN77L12M-E1 lies in its ability to provide a stable and regulated 12V output voltage.

Packaging/Quantity

AN77L12M-E1 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: Up to 35V
• Output Voltage: 12V (fixed)
• Output Current: Up to 100mA
• Dropout Voltage: 2V (typical)
• Line Regulation: ±0.5% (typical)
• Load Regulation: ±1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

AN77L12M-E1 has three pins:

1. Input (VIN): This pin is used to connect the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (VOUT): This pin provides the regulated 12V output voltage.

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Excellent line and load regulation characteristics ensure stable output voltage under varying conditions.
• Thermal shutdown protection prevents the device from overheating.
• Short-circuit current limiting protects the regulator and the connected circuitry.

Advantages

• Compact surface mount package allows for easy integration into space-constrained designs.
• Stable and regulated 12V output voltage ensures reliable performance of downstream components.
• Low dropout voltage minimizes power dissipation, increasing overall efficiency.
• Thermal shutdown and short-circuit protection enhance the reliability and safety of the device.

Disadvantages

• Limited output current capability (up to 100mA) may not be suitable for high-power applications.
• Fixed output voltage may restrict flexibility in certain designs requiring variable voltage regulation.

Working Principles

AN77L12M-E1 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable 12V output.

Detailed Application Field Plans

AN77L12M-E1 finds applications in various electronic circuits that require a stable 12V power supply. Some common application fields include:

1. Automotive electronics
2. Industrial control systems
3. Consumer electronics
4. Telecommunications equipment
5. Medical devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to AN77L12M-E1 are:

1. LM7812: A widely used 12V linear voltage regulator.
2. LT1086: A low-dropout linear regulator with adjustable output voltage.
3. TPS7A4700: An ultra-low-noise linear regulator with fixed 12V output.

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

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