MAX8865TEUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout (LDO) linear regulator, high efficiency, low quiescent current
• Package: 8-pin µMAX® package
• Essence: Provides a regulated output voltage from an unregulated input voltage source
• Packaging/Quantity: Tape and Reel, 2500 units 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
• Quiescent Current: 40µA (typical)
• Line Regulation: 0.02%/V
• Load Regulation: 0.05%/mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8865TEUA+T has the following pin configuration:

1. IN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for setting the output voltage
4. EN: Enable pin for turning the regulator on/off
5. BYP: Bypass capacitor pin for improved noise performance
6. OUT: Regulated output voltage pin
7. NC: No connection pin
8. VOUT: Output voltage sense pin

Functional Features

• Low dropout voltage allows operation with small input-output voltage differentials
• High efficiency ensures minimal power dissipation
• Low quiescent current extends battery life in portable applications
• Excellent line and load regulation for stable output voltage
• Thermal shutdown and current limit protection for enhanced reliability

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient operation with small voltage differentials - Low quiescent current prolongs battery life in portable devices - Excellent line and load regulation ensures stable output voltage

Disadvantages: - Limited maximum output current of 150mA may not be suitable for high-power applications - Temperature range limited to -40°C to +85°C, which may restrict usage in extreme environments

Working Principles

The MAX8865TEUA+T is a low-dropout linear regulator that regulates the output voltage by maintaining a constant voltage difference between the input and output. It utilizes a pass transistor to control the output voltage based on the feedback received from the FB pin. The enable (EN) pin allows the regulator to be turned on or off, conserving power when not needed.

Detailed Application Field Plans

The MAX8865TEUA+T is commonly used in various electronic devices and systems, including but not limited to:

1. Battery-powered portable devices such as smartphones, tablets, and wearable devices
2. Industrial control systems requiring stable and efficient voltage regulation
3. Automotive electronics for powering sensors, actuators, and control modules
4. Communication equipment like routers, switches, and wireless access points
5. Medical devices where reliable and precise voltage regulation is critical

Detailed and Complete Alternative Models

1. MAX8866TEUA+T: Similar specifications and features, but with a higher maximum output current of 300mA.
2. MAX8867TEUA+T: Enhanced thermal performance and extended temperature range (-40°C to +125°C).
3. MAX8868TEUA+T: Adjustable output voltage range and higher output current capability (up to 500mA).

These alternative models offer flexibility and expanded capabilities for different application requirements while maintaining similar characteristics to the MAX8865TEUA+T.

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