MAX771CPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low-power, high-efficiency voltage regulator
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Voltage Regulator IC
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.23V to 20V
• Maximum Output Current: 500mA
• Dropout Voltage: 350mV at 500mA
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX771CPA has the following pin configuration:

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

Functional Features

• Low dropout voltage for efficient power conversion
• Wide input voltage range allows flexibility in power supply selection
• Adjustable output voltage through feedback (FB) pin
• Enable (EN) pin for easy on/off control of the regulator
• Internal thermal shutdown protection prevents overheating

Advantages and Disadvantages

Advantages: - Low quiescent current enables power-saving operation - Compact 8-pin package suitable for space-constrained applications - Wide operating temperature range for versatility

Disadvantages: - Limited maximum output current may not be sufficient for high-power applications - Dropout voltage may affect efficiency in low-input voltage scenarios

Working Principles

The MAX771CPA is a linear voltage regulator that regulates the output voltage based on the feedback received through the FB pin. It operates by comparing the output voltage with a reference voltage and adjusting the internal pass transistor to maintain a stable output voltage. The regulator can handle input voltages within the specified range and provides a regulated output voltage with low dropout voltage.

Detailed Application Field Plans

The MAX771CPA is commonly used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Automotive systems - Industrial equipment - Communication devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the MAX771CPA are: - LM1117-3.3: A 3.3V linear voltage regulator with similar characteristics and package. - LT1763: A low-dropout voltage regulator with higher maximum output current capability. - TPS7A4700: An ultra-low-noise linear voltage regulator suitable for sensitive applications.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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