AL5809-50P1-7

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 AL5809-50P1-7 is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity: The AL5809-50P1-7 is typically sold in reels containing 2,500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV (typical)
• Output Current: Up to 500mA
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AL5809-50P1-7 has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Output voltage pin.

Functional Features

• Low Dropout Voltage: The AL5809-50P1-7 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 a maximum output current of 500mA, this voltage regulator can power a wide range of electronic devices.
• 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, ensuring reliable operation.
• Short-Circuit Current Limiting: In the event of a short circuit, the AL5809-50P1-7 limits the output current to prevent damage to the device.
• Reverse Battery Protection: The IC is designed to withstand reverse polarity connection, safeguarding against accidental reverse battery insertion.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - High output current capability allows for powering various electronic devices. - Adjustable output voltage provides flexibility in different applications. - Thermal shutdown protection prevents overheating. - Short-circuit current limiting protects the device from damage. - Reverse battery protection safeguards against reverse polarity connection.

Disadvantages: - Limited maximum output current compared to higher-rated voltage regulators. - Requires external resistors for adjusting the output voltage.

Working Principles

The AL5809-50P1-7 operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The input voltage is stepped down to the desired output voltage while providing a stable and regulated supply to connected loads. The IC continuously monitors the output voltage and adjusts the pass transistor accordingly to maintain the desired voltage level.

Detailed Application Field Plans

The AL5809-50P1-7 finds applications in various electronic systems where a stable and regulated voltage supply is required. Some common application fields include:

1. Portable electronic devices (e.g., smartphones, tablets, portable media players)
2. Battery-powered devices (e.g., wireless sensors, IoT devices)
3. Automotive electronics (e.g., infotainment systems, lighting controls)
4. Industrial control systems (e.g., motor drives, PLCs)
5. Consumer electronics (e.g., digital cameras, audio amplifiers)

Detailed and Complete Alternative Models

1. LM1117-5.0: A popular alternative with similar specifications and pin configuration.
2. LT1763-5: Offers lower dropout voltage and higher output current capability.
3. MCP1700-500: Provides a cost-effective solution with comparable performance.

These alternative models can be considered based on specific requirements and availability in the market.

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