MAX8868EUK25+T

Product Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: Low dropout, low quiescent current
• Package: SOT23-5
• Essence: Linear regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.5V
• Output Current: Up to 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8868EUK25+T has a total of five pins:

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

Functional Features

• Low dropout voltage ensures efficient power conversion.
• Low quiescent current minimizes power consumption.
• Excellent line and load regulation for stable output voltage.
• Enable pin allows for easy on/off control.
• Thermal shutdown and current limit protection.

Advantages and Disadvantages

Advantages

• Compact SOT23-5 package for space-constrained applications.
• Wide input voltage range for versatile use.
• Low dropout voltage enables operation with low input voltages.
• Low quiescent current prolongs battery life.
• Excellent line and load regulation for stable output.

Disadvantages

• Limited output current of up to 150mA.
• Not suitable for high-power applications.

Working Principles

The MAX8868EUK25+T is a linear voltage regulator that operates by maintaining a constant output voltage despite variations in input voltage and load conditions. It achieves this through a feedback mechanism that adjusts the internal pass transistor to regulate the output voltage at the desired level.

When the input voltage exceeds the dropout voltage, the regulator operates in a "dropout" region where it can no longer maintain the specified output voltage. The dropout voltage is typically 120mV at 100mA load current.

Detailed Application Field Plans

The MAX8868EUK25+T is commonly used in various battery-powered applications, such as:

1. Portable electronic devices
2. Wearable devices
3. IoT devices
4. Medical devices
5. Industrial sensors

Its low quiescent current and compact package make it suitable for space-constrained designs where power efficiency is crucial.

Detailed and Complete Alternative Models

1. MAX8868EUK25+: Similar to MAX8868EUK25+T but without tape and reel packaging.
2. MAX8868EUK30+T: Output voltage of 3.0V instead of 2.5V.
3. MAX8868EUK33+T: Output voltage of 3.3V instead of 2.5V.
4. MAX8868EUK50+T: Output voltage of 5.0V instead of 2.5V.

These alternative models provide flexibility in choosing the desired output voltage while maintaining similar characteristics and functionality.

In conclusion, the MAX8868EUK25+T is a voltage regulator with low dropout and low quiescent current characteristics. Its compact package and excellent line/load regulation make it suitable for various battery-powered applications. However, its limited output current and inability to handle high-power applications are notable disadvantages.