AN77L09M-E1

Product Overview

Category

AN77L09M-E1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• AN77L09M-E1 is a low dropout linear voltage regulator.
• It provides a fixed output voltage of 9V.
• The device operates with a maximum input voltage of 35V.
• It has a low quiescent current, making it suitable for battery-powered applications.
• AN77L09M-E1 offers excellent line and load regulation.
• It has built-in thermal shutdown and short-circuit protection features.

Package

AN77L09M-E1 comes in a small outline package (SOP) with multiple pins for easy integration into circuit boards.

Essence

The essence of AN77L09M-E1 lies in its ability to regulate voltage efficiently and reliably, ensuring stable power supply to connected components.

Packaging/Quantity

AN77L09M-E1 is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of devices. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Input Voltage Range: Up to 35V
• Output Voltage: 9V (fixed)
• Dropout Voltage: Typically 1.2V @ 0.5A
• Quiescent Current: Typically 5mA
• Line Regulation: Typically 0.05%/V
• Load Regulation: Typically 0.1%/A
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

AN77L09M-E1 has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

• Low dropout voltage ensures efficient voltage regulation even when the input voltage is close to the output voltage.
• Excellent line and load regulation provide stable output voltage under varying conditions.
• Built-in thermal shutdown protects the device from overheating.
• Short-circuit protection prevents damage in case of a short circuit.

Advantages and Disadvantages

Advantages

• Low dropout voltage enables efficient power conversion.
• Excellent line and load regulation ensure stable output voltage.
• Built-in thermal shutdown and short-circuit protection enhance reliability.
• Small package size allows for easy integration into circuits.

Disadvantages

• Fixed output voltage may limit its use in applications requiring variable voltage regulation.
• Limited input voltage range (up to 35V) may not be suitable for high-voltage applications.

Working Principles

AN77L09M-E1 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by dissipating excess energy as heat. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

AN77L09M-E1 finds application in various electronic devices and systems, including but not limited to: - Power supplies for microcontrollers and other digital ICs. - Battery-powered devices requiring stable voltage supply. - Audio amplifiers and preamplifiers. - Automotive electronics. - Industrial control systems.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to AN77L09M-E1 include: - LM7809: A popular 9V linear voltage regulator. - LT1084: A low dropout positive adjustable voltage regulator. - MC78M09: A fixed 9V voltage regulator with a wide input voltage range.

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

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