MAX889RESA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limit

Package: SOIC-8

Essence: MAX889RESA+ is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The MAX889RESA+ is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 120mV at 500mA
• Output Current: Up to 500mA
• Quiescent Current: 45µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX889RESA+ has the following pin configuration:

```

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| | --| EN OUT|-- Vout --| GND IN |-- Vin --| FB NC| |___________| ```

• EN: Enable Pin
• OUT: Output Voltage Pin
• GND: Ground Pin
• IN: Input Voltage Pin
• FB: Feedback Pin
• NC: No Connection

Functional Features

• Low dropout voltage ensures efficient power conversion.
• High output current capability allows it to power a wide range of devices.
• Adjustable output voltage enables customization for specific applications.
• Thermal shutdown protection prevents overheating and damage.
• Short-circuit current limit protects the IC and connected devices from excessive current.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows compatibility with various power sources. - Adjustable output voltage provides flexibility for different applications. - Low dropout voltage ensures efficient power conversion. - Thermal shutdown protection prevents damage due to overheating.

Disadvantages: - Limited output current capability compared to some other voltage regulators. - The package size may not be suitable for space-constrained designs.

Working Principles

The MAX889RESA+ is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) 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 MAX889RESA+ can be used in various applications, including but not limited to: 1. Battery-powered devices 2. Portable electronic devices 3. IoT devices 4. Automotive electronics 5. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the MAX889RESA+ include: - LM1117-ADJ - LT1086-ADJ - TPS7A4700-ADJ - ADP3339-ADJ

These alternatives offer similar functionality and can be considered based on specific requirements and availability.

In conclusion, the MAX889RESA+ is a versatile voltage regulator IC that provides stable output voltage for a wide range of electronic devices. Its low dropout voltage, high output current capability, and adjustable output voltage make it suitable for various applications. However, designers should consider the limited output current capability and package size when selecting this IC for their designs.