MAX8860EUA28+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low-dropout voltage regulator - Fixed output voltage of 2.8V - High output current capability - Low quiescent current - Thermal shutdown protection - Short-circuit current limit

Package: Micro SMD (Surface Mount Device)

Essence: The MAX8860EUA28+ is a low-dropout voltage regulator designed to provide a fixed output voltage of 2.8V with high output current capability and low quiescent current.

Packaging/Quantity: The MAX8860EUA28+ is available in a micro SMD package and is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.8V ±2%
• Output Current: Up to 1A
• Dropout Voltage: 120mV at 500mA
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8860EUA28+ has the following pin configuration:

1. IN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin (active high)
4. BYP: Bypass capacitor pin
5. FB: Feedback pin
6. OUT: Output voltage pin

Functional Features

• Low dropout voltage allows for efficient regulation even when the input voltage is close to the desired output voltage.
• High output current capability enables the device to power a wide range of loads.
• Low quiescent current ensures minimal power consumption during standby or idle conditions.
• Thermal shutdown protection prevents the device from overheating and damaging itself.
• Short-circuit current limit protects the regulator and the load from excessive current.

Advantages and Disadvantages

Advantages: - Stable and accurate output voltage - High output current capability - Low quiescent current for power efficiency - Thermal shutdown protection for device safety - Short-circuit current limit for load protection

Disadvantages: - Fixed output voltage may not be suitable for all applications requiring variable voltages. - Limited input voltage range (2.5V to 6.5V) may restrict its use in certain scenarios.

Working Principles

The MAX8860EUA28+ is a linear voltage 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 stable output voltage. The enable pin (EN) controls the regulator's operation, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The MAX8860EUA28+ can be used in various applications where a stable 2.8V power supply is required. Some potential application fields include: - Battery-powered devices - Portable electronics - Embedded systems - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. LM1117-2.8: Low-dropout voltage regulator with fixed 2.8V output voltage. Available in various package options.
2. LT1763-2.8: Ultra-low dropout voltage regulator with fixed 2.8V output voltage. Offers high PSRR (Power Supply Rejection Ratio) and low noise performance.
3. MCP1702-2802E/TO: Low-quiescent current voltage regulator with fixed 2.8V output voltage. Suitable for battery-powered applications.

These alternative models provide similar functionality and can be considered as substitutes for the MAX8860EUA28+ depending on specific requirements.

In conclusion, the MAX8860EUA28+ is a low-dropout voltage regulator that provides a stable 2.8V output voltage with high current capability and low quiescent current. It offers thermal shutdown protection and short-circuit current limit for enhanced reliability. With its compact package and wide range of applications, it is a versatile choice for various electronic systems.