AL5809-120QP1-7

Product Overview

Category: Integrated Circuit (IC)

Use: The AL5809-120QP1-7 is a voltage regulator IC primarily used for power management applications.

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Package: The AL5809-120QP1-7 is available in a compact QFN package, which ensures efficient heat dissipation and ease of integration into various electronic systems.

Essence: This IC serves as a reliable and efficient solution for regulating voltage in power management circuits.

Packaging/Quantity: The AL5809-120QP1-7 is typically supplied in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage Range: 1.2V to 16V
• Dropout Voltage: 200mV at 500mA
• Maximum Output Current: 500mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AL5809-120QP1-7 features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage pin

Functional Features

• High Efficiency: The AL5809-120QP1-7 exhibits high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of 200mV at 500mA, this IC can maintain stable output voltage even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 2.5V to 18V, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 1.2V to 16V, providing flexibility for various power management requirements.
• Overcurrent and Thermal Protection: The AL5809-120QP1-7 incorporates overcurrent and thermal protection mechanisms to safeguard against potential damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile application scenarios - Adjustable output voltage provides flexibility in design - Overcurrent and thermal protection ensure device safety

Disadvantages: - Limited maximum output current of 500mA may not be sufficient for high-power applications - Quiescent current of 60µA may contribute to power wastage in low-power systems

Working Principles

The AL5809-120QP1-7 operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. When the output voltage deviates from the desired value, the control circuit adjusts the pass transistor to maintain a stable output voltage.

Detailed Application Field Plans

The AL5809-120QP1-7 finds applications in various fields, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial automation - Automotive electronics - LED lighting

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with a fixed output voltage of 3.3V.
2. LT1763: Offers adjustable output voltage with ultra-low dropout voltage.
3. TPS7A4700: Provides higher maximum output current of 1A for demanding applications.

These alternative models offer similar functionality and can be considered based on specific requirements.

In conclusion, the AL5809-120QP1-7 is a versatile voltage regulator IC with high efficiency, adjustable output voltage, and overcurrent protection. It finds applications in various fields and can be replaced by alternative models depending on specific needs.