MAX639EPA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage
• Package: 8-pin DIP (Dual In-line Package)
• Essence: Provides regulated output voltage for various electronic devices
• Packaging/Quantity: Available in tubes of 25 units or reels of 1,000 units

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 15V
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX639EPA+ has the following pin configuration:

1. GND (Ground)
2. IN (Input Voltage)
3. EN (Enable)
4. FB (Feedback)
5. VOUT (Output Voltage)
6. NC (No Connection)
7. NC (No Connection)
8. VCC (Supply Voltage)

Functional Features

• High Efficiency: The MAX639EPA+ offers high efficiency, minimizing power dissipation and maximizing battery life.
• Low Dropout Voltage: With a dropout voltage as low as 300mV, it can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted within a wide range, providing flexibility for different applications.

Advantages and Disadvantages

Advantages: - High efficiency design - Low dropout voltage - Adjustable output voltage - Wide input voltage range - Compact 8-pin DIP package

Disadvantages: - Limited output current (up to 500mA) - Not suitable for high-power applications

Working Principles

The MAX639EPA+ is a voltage regulator that maintains a stable output voltage regardless of variations in the input voltage. It achieves this by using a feedback mechanism that continuously adjusts the internal circuitry to compensate for changes in the load and input conditions. By regulating the voltage, it ensures proper operation of electronic devices connected to its output.

Detailed Application Field Plans

The MAX639EPA+ finds applications in various fields, including but not limited to:

1. Portable Electronics: Provides regulated power supply for smartphones, tablets, and portable audio devices.
2. Industrial Control Systems: Ensures stable voltage supply for sensors, actuators, and control circuits.
3. Automotive Electronics: Regulates voltage for automotive infotainment systems, lighting modules, and other electronic components.
4. Medical Devices: Maintains precise voltage levels for medical equipment, such as patient monitors and diagnostic devices.

Detailed and Complete Alternative Models

1. LM317T: Adjustable voltage regulator with higher output current capability.
2. LT1084CP-5: Fixed 5V voltage regulator with low dropout voltage.
3. LM7805: Fixed 5V voltage regulator with higher output current capacity.

These alternative models offer similar functionality to the MAX639EPA+ but may have different specifications or package options.

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