MAX8881EUT25+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Noise, High PSRR
• Package: SOT-23-5
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 40µA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8881EUT25+T is a 5-pin device with the following pin configuration:

1. GND (Ground): Connected to the ground reference of the circuit.
2. IN (Input): Connects to the input voltage source.
3. BYP (Bypass): Connects to an external capacitor for noise reduction.
4. FB (Feedback): Connects to a resistive voltage divider for setting the output voltage.
5. OUT (Output): Provides the regulated output voltage.

Functional Features

• Low dropout voltage enables operation with low input-output voltage differentials.
• Low noise output ensures minimal interference in sensitive applications.
• High power supply rejection ratio (PSRR) reduces sensitivity to fluctuations in the input voltage.
• Excellent line and load regulation characteristics ensure stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption in battery-powered devices.

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package allows for space-efficient designs. - Wide input voltage range provides flexibility in various applications. - Low dropout voltage enables efficient power conversion. - Low noise output is beneficial for noise-sensitive circuits. - High PSRR enhances performance in noisy environments.

Disadvantages: - Limited maximum output current may restrict usage in high-power applications. - SOT-23-5 package may require additional thermal considerations for dissipating heat.

Working Principles

The MAX8881EUT25+T is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB pin) with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by utilizing a low dropout (LDO) architecture, allowing operation even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The MAX8881EUT25+T finds applications in various fields, including but not limited to: - Battery-powered devices: Portable electronics, handheld instruments, wireless sensors. - Automotive electronics: Infotainment systems, dashboard displays, lighting controls. - Industrial equipment: Data loggers, measurement devices, control systems. - Consumer electronics: Smartphones, tablets, digital cameras.

Detailed and Complete Alternative Models

• MAX8881EUT30+T: Similar specifications, but with a 3.0V fixed output voltage.
• MAX8881EUT33+T: Similar specifications, but with a 3.3V fixed output voltage.
• MAX8881EUT50+T: Similar specifications, but with a 5.0V fixed output voltage.
• MAX8881EUT18+T: Similar specifications, but with a 1.8V fixed output voltage.

These alternative models provide different fixed output voltages to suit specific application requirements while maintaining similar characteristics and features as the MAX8881EUT25+T.

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