MAX170DCWE+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX170DCWE+ is a voltage regulator IC designed for use in various electronic devices. It provides stable and regulated power supply to ensure proper functioning of the connected components.

Characteristics: - Input Voltage Range: 4.5V to 40V - Output Voltage Range: 1.25V to 37V - Maximum Output Current: 0.5A - Low Dropout Voltage: 0.2V at 500mA - Adjustable Output Voltage - Overcurrent Protection - Thermal Shutdown Protection

Package: The MAX170DCWE+ comes in a small-sized SOIC-16 package, which allows for easy integration into compact circuit designs.

Essence: This voltage regulator IC is an essential component in electronic devices that require a stable and regulated power supply. It ensures that the connected components receive the appropriate voltage levels, preventing damage due to voltage fluctuations.

Packaging/Quantity: The MAX170DCWE+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Maximum Output Current: 0.5A
• Dropout Voltage: 0.2V at 500mA
• Line Regulation: ±0.05% (Typical)
• Load Regulation: ±0.1% (Typical)
• Quiescent Current: 3.5mA (Typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX170DCWE+ has a total of 16 pins, as shown below:

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

Functional Features

1. Voltage Regulation: The MAX170DCWE+ provides a stable and regulated output voltage, ensuring the connected components receive the required power supply.

2. Adjustable Output Voltage: The output voltage can be adjusted within the specified range using the ADJ pin, allowing for flexibility in different applications.

3. Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the connected components from excessive current flow.

4. Thermal Shutdown Protection: In case of excessive temperature rise, the thermal shutdown feature activates, preventing damage to the IC and the surrounding circuitry.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for compatibility with various power sources. - Adjustable output voltage provides flexibility in different applications. - Overcurrent and thermal shutdown protection enhance reliability and safety. - Small-sized package enables easy integration into compact designs.

Disadvantages: - Maximum output current limited to 0.5A, which may not be sufficient for high-power applications. - Dropout voltage of 0.2V at 500mA may result in some power loss.

Working Principles

The MAX170DCWE+ operates as a linear voltage regulator. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage. This ensures that the connected components receive a stable power supply, even when the input voltage or load conditions vary.

Application Field Plans

The MAX170DCWE+ finds applications in various electronic devices, including but not limited to: - Power supplies for consumer electronics - Industrial control systems - Automotive electronics - Telecommunications equipment - Medical devices

Alternative Models

1. LM317T: This voltage regulator IC offers similar specifications and features as the MAX170DCWE+. It is available in a TO-220 package.
2. LT1084CP: Another alternative with comparable characteristics, this IC comes in a TO-3 package.

These alternative models can be considered based on specific application requirements and availability.

In conclusion, the MAX170DCWE+ is a versatile voltage regulator IC that provides stable and regulated power supply in various electronic devices. Its adjustable output voltage, overcurrent protection, and thermal shutdown features make it a reliable choice for many applications.

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