MAX1857EUA47+

Product Overview

The MAX1857EUA47+ belongs to the category of voltage regulators and is commonly used to provide a stable output voltage for various electronic devices. This integrated circuit exhibits characteristics such as high efficiency, low dropout voltage, and thermal shutdown protection. The package type for MAX1857EUA47+ is a micro-sized 8-pin µMAX, making it suitable for space-constrained applications. It is an essential component in electronic devices requiring precise voltage regulation. The packaging quantity typically ranges from 2500 to 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 11V
• Output Voltage: 4.7V
• Maximum Output Current: 500mA
• Dropout Voltage: 150mV at 100mA
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. IN: Input Voltage
2. GND: Ground
3. FB: Feedback Pin
4. NC: No Connection
5. SHDN: Shutdown Pin
6. NC: No Connection
7. OUT: Output Voltage
8. NC: No Connection

Functional Features

• High Efficiency: Provides efficient voltage regulation, minimizing power loss.
• Low Dropout Voltage: Ensures stable output even when the input voltage is close to the output voltage.
• Thermal Shutdown Protection: Safeguards the device from overheating, enhancing reliability.

Advantages and Disadvantages

Advantages

• Small Package Size: Ideal for compact electronic designs.
• Low Quiescent Current: Minimizes power consumption during standby mode.

Disadvantages

• Limited Maximum Output Current: Not suitable for high-power applications.

Working Principles

The MAX1857EUA47+ operates by comparing the feedback voltage with a precise internal reference to regulate the output voltage. When the input voltage fluctuates, the regulator adjusts its internal components to maintain a constant output voltage.

Detailed Application Field Plans

The MAX1857EUA47+ is widely used in portable electronic devices, battery-powered systems, and IoT (Internet of Things) applications. Its ability to efficiently regulate voltage while consuming minimal power makes it suitable for energy-conscious designs.

Detailed and Complete Alternative Models

1. MAX1856EUA46+: Similar to MAX1857EUA47+ but with a 4.6V output voltage.
2. MAX1858EUA48+: A higher output voltage variant with 4.8V output.

In conclusion, the MAX1857EUA47+ is a versatile voltage regulator with a compact form factor and efficient performance, making it an ideal choice for various low-power electronic applications.

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