MAX8877EZK18+T

Product Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: High efficiency, low dropout voltage, small package size
• Package: SOT23-5
• Essence: Low-power linear regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V
• Dropout Voltage: 120mV at 100mA load current
• Maximum Output Current: 150mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.15% typical
• Quiescent Current: 40µA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8877EZK18+T has a total of five pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin (active high)
4. BYP: Bypass capacitor connection pin
5. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion even with low input voltages.
• High output current capability allows for powering various components in the application.
• Excellent line and load regulation provide stable output voltage under different operating conditions.
• Low quiescent current minimizes power consumption during standby or idle modes.
• Thermal shutdown and current limit protection features ensure safe operation.

Advantages and Disadvantages

Advantages: - High efficiency - Small package size - Wide input voltage range - Low dropout voltage - Good line and load regulation

Disadvantages: - Limited maximum output current - Requires an external bypass capacitor for optimal performance

Working Principles

The MAX8877EZK18+T is a low-power linear regulator that regulates the input voltage to a fixed 1.8V output voltage. It achieves this by using a pass transistor in conjunction with feedback circuitry to maintain a stable output voltage despite variations in input voltage and load conditions. The device operates in dropout mode, allowing it to regulate even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The MAX8877EZK18+T is commonly used in various battery-powered applications where a stable 1.8V supply voltage is required. Some typical application fields include:

1. Portable electronic devices
2. Wearable devices
3. IoT (Internet of Things) devices
4. Medical devices
5. Industrial sensors

Detailed and Complete Alternative Models

1. MAX8887EZK18+T: Similar to MAX8877EZK18+T but with a higher maximum output current of 300mA.
2. MAX8867EZK18+T: Low-power linear regulator with a fixed 1.8V output voltage and a smaller SOT23-3 package.
3. MAX8897EZK18+T: High-efficiency, low-noise linear regulator with a fixed 1.8V output voltage and a higher maximum output current of 500mA.

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