MAX8877EUK18+T

Product Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: Low-dropout linear regulator, 1.8V fixed output voltage, ultra-small package
• Package: SOT23-5
• Essence: Provides a stable and regulated 1.8V output voltage for various electronic devices
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V (±2% accuracy)
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA load
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8877EUK18+T has the following pin configuration:

1. GND: Ground connection
2. IN: Input voltage supply
3. BYP: Bypass capacitor connection
4. FB: Feedback pin for output voltage regulation
5. OUT: Regulated 1.8V output

Functional Features

• Low dropout voltage ensures efficient power conversion.
• Excellent line and load regulation characteristics.
• Built-in thermal shutdown protection.
• Short-circuit and reverse-current protection.
• Low quiescent current extends battery life in portable applications.

Advantages and Disadvantages

Advantages

• Small form factor and low profile package make it suitable for space-constrained designs.
• Wide input voltage range allows compatibility with various power sources.
• Stable and accurate output voltage ensures reliable operation of connected devices.
• Robust protection features enhance system reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Fixed output voltage restricts flexibility in certain designs requiring adjustable voltages.

Working Principles

The MAX8877EUK18+T is a low-dropout linear regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB pin) with an internal reference voltage, adjusting the pass transistor to maintain a stable 1.8V output. The dropout voltage is minimized to ensure efficient power conversion even when the input voltage is close to the output voltage.

Detailed Application Field Plans

The MAX8877EUK18+T is commonly used in various electronic devices that require a stable 1.8V power supply. Some typical application fields include:

1. Mobile phones and smartphones
2. Portable media players
3. Digital cameras
4. Wireless communication modules
5. Battery-powered IoT devices

Detailed and Complete Alternative Models

• MAX8877EUK15+T: 1.5V fixed output voltage variant
• MAX8877EUK25+T: 2.5V fixed output voltage variant
• MAX8877EUK33+T: 3.3V fixed output voltage variant
• MAX8877EUK50+T: 5.0V fixed output voltage variant

These alternative models provide different fixed output voltages to accommodate diverse system requirements.

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