MAX8878EUK18+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Efficiency
• Package: SOT23-5
• Essence: Power Management Solution
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8878EUK18+T has a total of five pins arranged as follows:

1. GND: Ground pin
2. IN: Input voltage pin
3. EN: Enable pin
4. BYP: Bypass capacitor connection pin
5. OUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion.
• High output current capability allows for various applications.
• Wide input voltage range provides flexibility in power supply options.
• Enable pin allows for easy on/off control of the regulator.
• Bypass capacitor connection pin improves stability and noise performance.

Advantages and Disadvantages

Advantages: - Low dropout voltage results in higher efficiency. - Small package size enables space-saving designs. - Wide input voltage range accommodates different power sources. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited maximum output current may restrict certain applications. - Single fixed output voltage limits versatility.

Working Principles

The MAX8878EUK18+T is a low dropout linear voltage regulator that operates by maintaining a constant output voltage despite variations in input voltage and load conditions. It achieves this by utilizing a pass transistor that adjusts its resistance to regulate the output voltage. The regulator also includes protection features such as thermal shutdown and current limit to ensure safe operation.

Detailed Application Field Plans

The MAX8878EUK18+T is commonly used in various portable electronic devices, including:

1. Mobile phones
2. Tablets
3. Portable media players
4. Wearable devices
5. Digital cameras

Its low dropout voltage, small package size, and high efficiency make it suitable for applications where space and power consumption are critical.

Detailed and Complete Alternative Models

1. MAX8887EUK18+: Similar specifications but with an adjustable output voltage.
2. MAX8869EUE18+: Higher maximum output current of 300mA.
3. MAX8890EUK18+: Lower quiescent current of 10µA.

These alternative models offer different features and capabilities, allowing designers to choose the most suitable option based on their specific requirements.

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