MAX881REUB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Voltage Regulator
• Package: 10-pin µMAX®
• Essence: Voltage regulator with low dropout voltage and high output current capability
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.25V to 5.5V
• Dropout Voltage: 120mV at 500mA
• Maximum Output Current: 500mA
• Quiescent Current: 75µA
• Line Regulation: 0.02%/V
• Load Regulation: 0.05%/mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX881REUB has the following pin configuration:

1. IN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. BYP: Bypass Capacitor Connection
5. FB: Feedback Pin
6. VOUT: Output Voltage
7. GND: Ground
8. GND: Ground
9. GND: Ground
10. OUT: Output Voltage

Functional Features

• Low dropout voltage allows for efficient power conversion even with small input-output voltage differentials.
• High output current capability enables the device to handle demanding loads.
• Enable pin provides control over the regulator's operation, allowing for power-saving modes.
• Bypass capacitor connection improves stability and reduces noise.
• Feedback pin ensures accurate output voltage regulation.

Advantages and Disadvantages

Advantages

• Low dropout voltage minimizes power dissipation and extends battery life.
• High output current capability suits a wide range of applications.
• Enable pin allows for power management and control.
• Small package size saves board space.

Disadvantages

• Limited output current compared to some other voltage regulators.
• Requires an external bypass capacitor for optimal performance.

Working Principles

The MAX881REUB is a low dropout voltage regulator that operates by maintaining a stable output voltage despite variations in the input voltage. It achieves this through a combination of internal circuitry and feedback control. The device regulates the output voltage by adjusting the pass transistor's resistance, ensuring a constant voltage across the load.

Detailed Application Field Plans

The MAX881REUB finds applications in various fields, including:

1. Battery-powered devices: Portable electronics, such as smartphones, tablets, and wearable devices, benefit from the low dropout voltage and high output current capability of the MAX881REUB.
2. Industrial equipment: The regulator can be used in industrial control systems, sensors, and instrumentation, providing stable power supply in demanding environments.
3. Automotive electronics: The device is suitable for automotive applications, including infotainment systems, lighting controls, and engine management systems, where reliable power regulation is crucial.

Detailed and Complete Alternative Models

1. MAX882REUB: Similar to the MAX881REUB but with a higher maximum output current of 800mA.
2. MAX883REUB: A variant with adjustable output voltage, allowing for greater flexibility in different applications.
3. MAX884REUB: Offers a wider input voltage range, making it suitable for applications with higher voltage requirements.

These alternative models provide options with varying specifications to cater to specific design requirements.

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