AL5809-100P1-7

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting - Reverse battery protection

Package: TO-252-3 (DPAK)

Essence: The AL5809-100P1-7 is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The AL5809-100P1-7 is typically available in reels containing 2,500 units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 300mV at 500mA
• Output Current: Up to 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AL5809-100P1-7 has three pins:

1. VIN (Pin 1): Input voltage pin. Connects to the power supply.
2. GND (Pin 2): Ground pin. Connected to the system ground.
3. VOUT (Pin 3): Output voltage pin. Connects to the load.

Functional Features

• Low Dropout Voltage: The AL5809-100P1-7 exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With an output current capability of up to 1A, this voltage regulator can handle a wide range of loads.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range using external resistors.
• Thermal Shutdown Protection: The IC incorporates a thermal shutdown feature that protects it from overheating, preventing damage to the device.
• Short-Circuit Current Limiting: In the event of a short circuit, the AL5809-100P1-7 limits the output current to protect both the regulator and the load.
• Reverse Battery Protection: The IC is designed to withstand reverse polarity connection, safeguarding against accidental reverse battery installation.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for versatile applications - Adjustable output voltage provides flexibility - Thermal shutdown protection prevents overheating - Short-circuit current limiting protects the regulator and load - Reverse battery protection safeguards against reverse polarity connection

Disadvantages: - None identified

Working Principles

The AL5809-100P1-7 operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. This ensures that the output voltage remains stable even when the input voltage fluctuates.

Detailed Application Field Plans

The AL5809-100P1-7 finds applications in various electronic devices requiring a stable and regulated power supply. Some potential application fields include: - Portable consumer electronics - Battery-powered devices - Industrial control systems - Automotive electronics - LED lighting systems

Detailed and Complete Alternative Models

1. LM1117-3.3: A 3.3V voltage regulator with similar characteristics and package.
2. LT1763-5: A 5V low dropout voltage regulator with adjustable output voltage.
3. TPS79633: A 3.3V voltage regulator with ultra-low dropout voltage and high PSRR.

These alternative models offer similar functionality and can be considered as alternatives to the AL5809-100P1-7 based on specific requirements and design considerations.

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