MAX505BENG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage
• Package: DIP-8 (Dual In-line Package with 8 pins)
• Essence: Linear voltage regulator
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.2V to 26V
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV at 500mA
• Line Regulation: 0.02%/V
• Load Regulation: 0.05%/A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX505BENG has a total of 8 pins arranged as follows:

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| | --| Vout Vin|-- --| GND GND|-- --| ADJ NC |-- |___________| ```

• Vout: Output Voltage
• Vin: Input Voltage
• GND: Ground
• ADJ: Adjustable Pin
• NC: No Connection

Functional Features

• High Efficiency: The MAX505BENG offers high efficiency, minimizing power dissipation and maximizing battery life.
• Low Dropout Voltage: With a dropout voltage of only 300mV at 500mA, the regulator can maintain a stable output even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The ADJ pin allows for easy adjustment of the output voltage within the specified range.
• Short-Circuit Protection: The IC includes built-in short-circuit protection, preventing damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - High efficiency - Low dropout voltage - Adjustable output voltage - Short-circuit protection

Disadvantages: - Limited maximum output current (500mA) - Requires external components for stability

Working Principles

The MAX505BENG is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor accordingly to maintain a stable output voltage. The adjustable pin allows users to set the desired output voltage within the specified range.

Detailed Application Field Plans

The MAX505BENG is commonly used in various applications where a stable and adjustable voltage supply is required. Some typical application fields include:

1. Battery-Powered Devices: The low dropout voltage and high efficiency make it suitable for battery-powered devices such as portable electronics, IoT devices, and handheld instruments.
2. Automotive Electronics: The wide input voltage range and robust operating temperature range make it suitable for automotive applications, including infotainment systems, lighting controls, and power management modules.
3. Industrial Control Systems: The regulator can be used in industrial control systems, providing a stable voltage supply for sensors, actuators, and other control circuitry.
4. Telecommunications: The adjustable output voltage makes it useful in telecommunications equipment, where different voltage levels may be required for different components.

Detailed and Complete Alternative Models

Some alternative models to the MAX505BENG that offer similar functionality and features include:

1. LM317: A popular adjustable linear voltage regulator with a wide input voltage range and adjustable output voltage.
2. LT1086: A low dropout voltage regulator with adjustable output voltage and high current capability.
3. LM1117: A series of low dropout voltage regulators available in fixed and adjustable output voltage options.
4. ADP333x: A family of low dropout voltage regulators with adjustable output voltage and high accuracy.

These alternative models can be considered based on specific requirements and design constraints.

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