MAX8881EUT33-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Noise, High PSRR
• Package: SOT-23-3
• Essence: Linear Regulator
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 3.3V
• Output Current: Up to 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• PSRR: 70dB at 1kHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8881EUT33-T is a three-pin device with the following pin configuration:

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| | --| VIN GND |-- Pin 1: Ground --| VOUT EN |-- Pin 2: Enable --| NC NC |-- Pin 3: No Connection |___________| ```

Functional Features

• Low dropout voltage ensures stable output even when input voltage is close to the desired output voltage.
• Low noise output suitable for noise-sensitive applications.
• High Power Supply Rejection Ratio (PSRR) minimizes the impact of power supply variations on the output voltage.
• Enable pin allows for easy control of the regulator's operation.

Advantages and Disadvantages

Advantages

• Small package size makes it suitable for space-constrained applications.
• Low quiescent current helps conserve power in battery-powered devices.
• Wide input voltage range provides flexibility in various applications.
• Excellent line and load regulation ensures stable output voltage under different conditions.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Dropout voltage may cause some power loss in low input voltage scenarios.

Working Principles

The MAX8881EUT33-T is a linear regulator that regulates the output voltage by dropping excess voltage across its internal pass transistor. It operates by comparing the feedback voltage from the output with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MAX8881EUT33-T is commonly used in various battery-powered applications, such as:

1. Portable electronic devices: Provides regulated power supply for microcontrollers, sensors, and other components.
2. Wireless communication devices: Ensures stable voltage for RF modules, transceivers, and other wireless components.
3. Medical devices: Suitable for powering low-power medical sensors and monitoring equipment.
4. Industrial control systems: Used in automation and control systems where stable voltage is critical.

Detailed and Complete Alternative Models

1. MAX8881EUT25-T: Output voltage of 2.5V, otherwise similar specifications.
2. MAX8881EUT50-T: Output voltage of 5.0V, otherwise similar specifications.
3. MAX8881EUT12-T: Output voltage of 1.2V, otherwise similar specifications.
4. MAX8881EUT18-T: Output voltage of 1.8V, otherwise similar specifications.

These alternative models provide different output voltages to cater to specific application requirements while maintaining similar characteristics and package options.

In conclusion, the MAX8881EUT33-T is a voltage regulator IC with excellent characteristics such as low dropout, low noise, and high PSRR. Its small package size and wide input voltage range make it suitable for various battery-powered applications. While it has limitations in terms of output current and dropout voltage, it offers stable and regulated power supply for a range of electronic devices.