MAX8869EUE18+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Wide input voltage range - Adjustable output voltage - Thermal shutdown protection

Package: MicroDFN-8

Essence: The MAX8869EUE18+ is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The MAX8869EUE18+ is available in a microDFN-8 package. It is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V
• Dropout Voltage: 120mV at 300mA
• Output Current: Up to 500mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8869EUE18+ has the following pin configuration:

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| | --| VOUT GND|-- Pin 1 --| VIN EN |-- Pin 2 --| FB NC |-- Pin 3 --| NC NC |-- Pin 4 --| NC NC |-- Pin 5 --| NC NC |-- Pin 6 --| NC NC |-- Pin 7 --| NC NC |-- Pin 8 |___________| ```

Functional Features

1. Low Dropout Voltage: The MAX8869EUE18+ exhibits a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
2. High Output Current Capability: With a maximum output current of 500mA, this voltage regulator can power a wide range of electronic devices.
3. Wide Input Voltage Range: The IC accepts input voltages ranging from 2.5V to 6.5V, making it suitable for various applications.
4. Adjustable Output Voltage: The output voltage can be adjusted using external resistors, allowing flexibility in meeting specific voltage requirements.
5. Thermal Shutdown Protection: The MAX8869EUE18+ incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability allows for powering a wide range of devices. - Wide input voltage range provides versatility in application. - Adjustable output voltage allows customization. - Thermal shutdown protection prevents damage from overheating.

Disadvantages: - Limited output voltage options (fixed at 1.8V). - MicroDFN-8 package may require specialized handling during assembly.

Working Principles

The MAX8869EUE18+ operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. This ensures that the output voltage remains stable even when the input voltage fluctuates.

The device uses feedback control to adjust the pass transistor's resistance, compensating for changes in load and input voltage. By continuously monitoring the output voltage and comparing it to a reference voltage, the regulator adjusts the pass transistor to maintain the desired output voltage.

Detailed Application Field Plans

The MAX8869EUE18+ is commonly used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial equipment - Automotive systems - Communication devices

Its low dropout voltage, high output current capability, and wide input voltage range make it suitable for powering a wide range of electronic devices in different industries.

Detailed and Complete Alternative Models

1. MAX8869EUE25+: Similar to the MAX8869EUE18+, but with an output voltage of 2.5V.
2. MAX8869EUE33+: Similar to the MAX8869EUE18+, but with an output voltage of 3.3V.
3. MAX8869EUE50+: Similar to the MAX8869EUE18+, but with an output voltage of 5.0V.
4. MAX8869EUE12+: Similar to the MAX8869EUE18+, but with an output voltage of 1.2V.

These alternative models provide different output voltage options, allowing users to select the most suitable voltage regulator for their specific application requirements.

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