MN1381SE

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Small size - Low power consumption - High precision - Wide input voltage range

Package: SOP-8 (Small Outline Package)

Essence: The MN1381SE is a voltage regulator IC that provides a stable output voltage regardless of fluctuations in the input voltage.

Packaging/Quantity: The MN1381SE is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 3V to 40V
• Output Voltage Range: 2.5V to 37V
• Output Current: Up to 100mA
• Dropout Voltage: 0.5V (typical)
• Line Regulation: 0.01%/V
• Load Regulation: 0.1%/mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MN1381SE has eight pins arranged as follows:

```

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

1. Vout: Output voltage pin
2. Vin: Input voltage pin
3. GND: Ground pin
4. NC: No connection pin

Functional Features

• Voltage Regulation: The MN1381SE maintains a constant output voltage even when the input voltage varies.
• Low Power Consumption: The IC consumes minimal power, making it suitable for battery-powered applications.
• High Precision: It offers high accuracy in regulating the output voltage.
• Wide Input Voltage Range: The IC can handle a wide range of input voltages, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - Small size allows for space-saving designs. - Low power consumption prolongs battery life. - High precision ensures accurate voltage regulation. - Wide input voltage range provides versatility.

Disadvantages: - Limited output current capability (up to 100mA). - Dropout voltage of 0.5V may affect efficiency in low voltage applications.

Working Principles

The MN1381SE utilizes a feedback mechanism to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output. This feedback loop continuously monitors and adjusts the output voltage, compensating for any variations in the input voltage.

Detailed Application Field Plans

The MN1381SE is commonly used in various electronic devices and systems, including:

1. Battery-powered devices: The low power consumption and wide input voltage range make it suitable for portable electronics such as smartphones, tablets, and wearable devices.
2. Automotive applications: The IC can regulate the voltage in automotive systems, ensuring stable operation of various components.
3. Industrial equipment: It finds application in industrial control systems, where precise voltage regulation is crucial for reliable operation.
4. Power supplies: The MN1381SE can be used in low-power DC power supplies to provide a stable output voltage.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with a higher output current capability.
2. LM7805: A fixed 5V voltage regulator commonly used in many electronic circuits.
3. LT1084: A high-current, adjustable voltage regulator suitable for demanding applications.

These alternative models offer different features and specifications, providing options based on specific requirements.

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