AN78L15M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Fixed Output Voltage
• Package: TO-252, 3-Pin
• Essence: AN78L15M is a voltage regulator IC that provides a fixed output voltage of +15V with low dropout characteristics.
• Packaging/Quantity: Available in reels or tubes, quantity varies based on manufacturer.

Specifications

• Input Voltage Range: 17V to 35V
• Output Voltage: +15V
• Output Current: Up to 100mA
• Dropout Voltage: 2V (max)
• Operating Temperature Range: -40°C to +125°C
• Line Regulation: 0.5% (typical)
• Load Regulation: 1% (typical)

Pin Configuration

The AN78L15M IC 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

• Voltage Regulation: AN78L15M regulates the input voltage to a fixed +15V output voltage.
• Low Dropout: The IC operates with a low dropout voltage, ensuring stable output even when the input voltage is close to the desired output voltage.
• Internal Thermal Protection: The IC incorporates thermal protection to prevent damage due to excessive heat.
• Short Circuit Protection: AN78L15M includes short circuit protection, safeguarding the IC and connected components from damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Simple to use and integrate into electronic circuits. - Provides a stable and regulated output voltage. - Low dropout voltage ensures efficient operation even with low input voltages.

Disadvantages: - Limited output current capability (up to 100mA). - Requires external capacitors for stability.

Working Principles

AN78L15M is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

AN78L15M finds applications in various electronic devices where a stable +15V power supply is required. Some common application areas include:

1. Audio Amplifiers
2. Power Supply Units
3. Industrial Control Systems
4. Automotive Electronics
5. Battery-Powered Devices

Alternative Models

Here are some alternative models that can be used as substitutes for AN78L15M:

1. LM7815: A popular voltage regulator IC with similar specifications.
2. MC78L15: Another widely used voltage regulator IC offering a fixed +15V output.
3. UA7815: A reliable alternative with comparable characteristics.

These alternatives can be considered based on availability, pricing, and specific requirements of the application.

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