AL5809-15P1-7

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection

Package: TO-252-3 (DPAK)

Essence: The AL5809-15P1-7 is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in various electronic devices to regulate and control the voltage supplied to different components.

Packaging/Quantity: The AL5809-15P1-7 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V - 6.5V
• Output Voltage Range: 1.2V - 5.5V
• Dropout Voltage: 200mV @ 500mA
• Output Current: Up to 500mA
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AL5809-15P1-7 has three pins:

1. VIN - Input voltage pin
2. GND - Ground pin
3. VOUT - Output voltage pin

Functional Features

• Low Dropout Voltage: The AL5809-15P1-7 has 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 handle high power demands.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range using external resistors.
• Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating, ensuring safe operation.
• Overcurrent Protection: The AL5809-15P1-7 incorporates overcurrent protection to safeguard against excessive current flow.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for demanding applications - Adjustable output voltage provides flexibility - Thermal shutdown and overcurrent protection enhance reliability

Disadvantages: - Limited input voltage range (2.5V - 6.5V) - Quiescent current of 50µA may impact power efficiency in low-power applications

Working Principles

The AL5809-15P1-7 operates as a linear voltage regulator. It compares the output voltage with a reference voltage and adjusts the pass transistor to maintain a stable output voltage. When the input voltage is higher than the desired output voltage, the pass transistor reduces the excess voltage, resulting in a regulated output.

Detailed Application Field Plans

The AL5809-15P1-7 finds applications in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Wireless communication devices - Battery-powered devices - Industrial control systems

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and features.
2. LT1763-3.3: Offers lower dropout voltage and higher output current capability.
3. MCP1700-3302E: Provides adjustable output voltage and low quiescent current.

These alternative models can be considered based on specific requirements and design constraints.

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