MAX684EUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output, Low Quiescent Current
• Package: 8-pin µMAX®
• Essence: The MAX684EUA+T is a voltage regulator IC designed to provide a stable output voltage with low dropout and low quiescent current.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 15V
• Dropout Voltage: 120mV at 100mA load current
• Quiescent Current: 40µA typical
• Output Current: Up to 300mA
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX684EUA+T has the following pin configuration:

```

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| | --| VOUT | --| GND | --| ADJ | --| NC | --| NC | --| VIN | --| NC | |___________| ```

Functional Features

• Low Dropout: The MAX684EUA+T exhibits a low dropout voltage, ensuring stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output: The output voltage can be adjusted within a specified range using an external resistor divider network connected to the ADJ pin.
• Low Quiescent Current: The IC consumes very low quiescent current, making it suitable for battery-powered applications where power efficiency is crucial.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures stable output even with low input voltage. - Adjustable output voltage provides flexibility in various applications. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited output current capacity (up to 300mA). - Requires an external resistor divider network for output voltage adjustment.

Working Principles

The MAX684EUA+T is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from the ADJ pin. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in load current and input voltage.

Detailed Application Field Plans

The MAX684EUA+T can be used in various applications, including but not limited to: 1. Battery-powered devices: Provides stable voltage regulation for portable electronics, such as smartphones, tablets, and wearable devices. 2. Industrial control systems: Ensures reliable power supply for sensors, actuators, and other components in automation and control systems. 3. Automotive electronics: Regulates voltage for automotive modules, infotainment systems, and lighting applications. 4. Communication equipment: Maintains a stable voltage for routers, switches, and other networking devices. 5. Medical devices: Provides precise voltage regulation for medical instruments and equipment.

Detailed and Complete Alternative Models

Some alternative models to the MAX684EUA+T include: - LM1117: A popular voltage regulator IC with adjustable output and low dropout characteristics. - LT1763: A high-performance, low dropout voltage regulator with adjustable output and low quiescent current. - TPS7A47: An ultra-low dropout voltage regulator with adjustable output and high output current capability.

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

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