MAX8868EUK28+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Quiescent Current
• Package: SOT23-5
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.8V
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Line Regulation: ±0.05%/V
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8868EUK28+T has a total of five pins:

1. IN: Input voltage pin.
2. GND: Ground pin.
3. FB: Feedback pin for output voltage regulation.
4. EN: Enable pin to turn the regulator on/off.
5. OUT: Output voltage pin.

Functional Features

• Low dropout voltage allows efficient regulation even with low input voltages.
• Low quiescent current ensures minimal power consumption during standby or idle mode.
• Excellent line and load regulation provide stable output voltage under varying conditions.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limit protects the regulator and connected components from damage.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient operation in low voltage applications. - Low quiescent current minimizes power consumption. - Small package size (SOT23-5) allows for space-saving designs. - Excellent line and load regulation ensure stable output voltage.

Disadvantages: - Limited maximum output current (150mA) may not be suitable for high-power applications. - Operating temperature range (-40°C to +85°C) may restrict usage in extreme environments.

Working Principles

The MAX8868EUK28+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 to adjust the pass transistor's resistance and maintain a constant output voltage. The enable pin (EN) controls the regulator's on/off state, allowing for power-saving operation when not required.

Detailed Application Field Plans

The MAX8868EUK28+T is commonly used in various electronic devices and systems, including but not limited to:

1. Battery-powered portable devices: Provides stable voltage regulation for microcontrollers, sensors, and other low-power components.
2. IoT (Internet of Things) devices: Ensures reliable power supply for wireless modules, sensors, and communication interfaces.
3. Automotive electronics: Suitable for powering sensors, actuators, and control circuits in automotive applications.
4. Industrial control systems: Used in PLCs (Programmable Logic Controllers), motor control units, and other industrial automation equipment.
5. Consumer electronics: Enables voltage regulation in audio/video devices, wearables, and home appliances.

Detailed and Complete Alternative Models

1. LM1117-2.8: Similar low dropout voltage regulator with a fixed 2.8V output voltage.
2. LT1763-2.8: Low dropout regulator with adjustable output voltage and higher maximum output current.
3. MCP1702-2.8: Low quiescent current regulator with a fixed 2.8V output voltage.
4. TPS78228: Ultra-low quiescent current regulator with a fixed 2.8V output voltage and higher maximum output current.

(Note: This list is not exhaustive and serves as an example of alternative models available in the market.)

In conclusion, the MAX8868EUK28+T is a low dropout voltage regulator that provides stable and efficient voltage regulation for various electronic applications. Its small package size, low quiescent current, and excellent line/load regulation make it suitable for a wide range of devices. However, its limited maximum output current and operating temperature range should be considered when selecting alternative models for specific requirements.