AL5809-50S1-7

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 limit - Reverse battery protection

Package: SOT-23-5

Essence: The AL5809-50S1-7 is a voltage regulator IC designed to provide a stable and regulated output voltage. It is commonly used in various electronic devices to ensure proper power supply.

Packaging/Quantity: The AL5809-50S1-7 is typically packaged in reels containing 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 150mA
• Output Current: Up to 150mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AL5809-50S1-7 has a total of five pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. ADJ: Adjustable pin for setting the output voltage
4. NC: No connection pin
5. VOUT: Output voltage pin

Functional Features

• Low Dropout Voltage: The AL5809-50S1-7 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 150mA, this voltage regulator can handle a wide range of load requirements.
• Adjustable Output Voltage: The ADJ pin allows users to set the desired output voltage within the specified range.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Short-Circuit Current Limit: In case of a short circuit, the AL5809-50S1-7 limits the current to protect itself and the connected components.
• Reverse Battery Protection: The IC is designed to withstand reverse polarity connection, safeguarding against accidental damage.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - Adjustable output voltage for flexibility - Thermal shutdown protection prevents overheating - Short-circuit current limit protects components - Reverse battery protection prevents damage from reverse polarity connection

Disadvantages: - Limited maximum output current (150mA) - Restricted input voltage range (2.5V to 6.5V)

Working Principles

The AL5809-50S1-7 operates as a linear voltage regulator. It regulates the output voltage by comparing the reference voltage with the feedback voltage obtained from the ADJ pin. The internal circuitry adjusts the pass transistor to maintain a stable output voltage, compensating for changes in load and input voltage.

Detailed Application Field Plans

The AL5809-50S1-7 finds applications in various electronic devices that require a regulated power supply. Some common application fields include: - Portable consumer electronics - Battery-powered devices - IoT devices - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

1. AL5810-33S1-7: Similar to AL5809-50S1-7 but with a fixed output voltage of 3.3V.
2. AL5809-25S1-7: Similar to AL5809-50S1-7 but with a fixed output voltage of 2.5V.
3. AL5812-12S1-7: Similar to AL5809-50S1-7 but with a fixed output voltage of 1.2V.

These alternative models provide similar functionality with different fixed output voltages, catering to specific application requirements.

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