MAX881REUB+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
• Package: µMAX®
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.25V to 3.3V
• Output Current: Up to 150mA
• Quiescent Current: 7µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX881REUB+T has the following pin configuration:

```

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| | --| VOUT | --| GND | --| VIN | --| EN | |___________| ```

• VOUT: Output Voltage
• GND: Ground
• VIN: Input Voltage
• EN: Enable Pin

Functional Features

• High efficiency voltage regulation
• Low quiescent current for power-saving applications
• Thermal shutdown protection
• Short-circuit and reverse polarity protection
• Adjustable output voltage with external resistors

Advantages

• Compact package size allows for space-constrained designs
• Wide input voltage range enables compatibility with various power sources
• Low quiescent current prolongs battery life in portable devices
• Robust protection features enhance system reliability

Disadvantages

• Limited output current may not be suitable for high-power applications
• Fixed output voltage range restricts flexibility in certain designs

Working Principles

The MAX881REUB+T is a voltage regulator IC that takes an input voltage within the range of 2.5V to 5.5V and provides a regulated output voltage between 1.25V and 3.3V. It achieves high efficiency by utilizing a synchronous buck converter architecture.

The device operates by continuously monitoring the output voltage and adjusting the duty cycle of the internal switches to maintain a stable output. The enable pin (EN) allows for easy control of the regulator's operation, enabling power-saving modes when necessary.

Detailed Application Field Plans

The MAX881REUB+T is commonly used in various battery-powered applications, such as:

1. Portable electronic devices: smartphones, tablets, portable media players
2. Wearable devices: smartwatches, fitness trackers
3. IoT devices: sensors, wireless modules
4. Battery-powered industrial equipment: handheld instruments, data loggers

Its small package size and low quiescent current make it suitable for space-constrained and power-sensitive designs.

Detailed and Complete Alternative Models

1. MAX882REUB+T: Similar to MAX881REUB+T but with a higher output current capability of up to 300mA.
2. MAX883REUB+T: Provides adjustable output voltage range from 0.8V to 3.3V, suitable for more versatile designs.
3. MAX884REUB+T: Offers a fixed output voltage of 5V, ideal for applications requiring a stable 5V supply.

These alternative models provide options for different output current requirements and flexibility in output voltage selection.

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