MAX8888EZK25+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout, high-performance, low-power consumption
• Package: SOT-23-5
• Essence: Regulates input voltage to a stable output voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Output Current: Up to 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8888EZK25+T has a total of five pins:

1. VIN - 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. VOUT - Output voltage pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High output current capability allows for powering various components.
• Excellent line and load regulation characteristics provide stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption in standby or idle modes.
• Thermal shutdown and current limit protection ensure safe operation.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Small package size (SOT-23-5) makes it suitable for space-constrained applications.
• Low dropout voltage reduces power dissipation and extends battery life.
• High output current capability allows for driving multiple loads simultaneously.

Disadvantages

• Limited output current may not be sufficient for high-power applications.
• SOT-23-5 package may require additional heat sinking for certain operating conditions.

Working Principles

The MAX8888EZK25+T is a low-dropout voltage regulator that utilizes a PNP pass transistor to regulate the input voltage to a stable output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, and adjusts the pass transistor accordingly to maintain the desired output voltage. The enable pin (EN) controls the on/off state of the regulator.

Detailed Application Field Plans

The MAX8888EZK25+T is commonly used in various portable and battery-powered devices, such as:

1. Mobile phones
2. Tablets
3. Portable media players
4. Digital cameras
5. Wireless headsets

Its small form factor, low power consumption, and efficient regulation make it ideal for these applications.

Detailed and Complete Alternative Models

1. MAX8887: Similar specifications but with adjustable output voltage.
2. MAX8889: Higher output current capability (up to 300mA).
3. MAX8890: Dual-output voltage regulator with independent enable pins.

These alternative models offer different features and capabilities, allowing designers to choose the most suitable option for their specific requirements.

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