MIC2172BN

Product Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: High Efficiency, Low Dropout Voltage, Adjustable Output Voltage
• Package: DIP (Dual In-line Package)
• Essence: Voltage Regulator
• Packaging/Quantity: Tube/25 pieces

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 1.5A
• Dropout Voltage: 1.2V at 1A Load
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2172BN has a standard dual in-line package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. FB: Feedback Pin
4. VOUT: Output Voltage
5. ADJ: Adjust Pin
6. SS/TR: Soft-Start/Tracking Pin
7. COMP: Compensation Pin
8. VCC: Supply Voltage

Functional Features

• High Efficiency: The MIC2172BN offers high efficiency due to its low dropout voltage and adjustable output voltage.
• Low Dropout Voltage: The regulator maintains a low dropout voltage of 1.2V at 1A load, ensuring efficient power delivery.
• Adjustable Output Voltage: The output voltage can be adjusted from 1.25V to 37V, providing flexibility for various applications.
• Soft-Start/Tracking: The soft-start feature allows for gradual startup, reducing stress on the system components.
• Compensation Pin: The compensation pin enables stability and control over the output voltage.

Advantages and Disadvantages

Advantages: - High efficiency - Low dropout voltage - Adjustable output voltage - Soft-start feature for smooth startup

Disadvantages: - Limited output current (up to 1.5A)

Working Principles

The MIC2172BN is a voltage regulator that takes an input voltage within the range of 4.5V to 40V and provides a regulated output voltage between 1.25V and 37V. It achieves this by using a feedback mechanism to compare the output voltage with a reference voltage. The regulator adjusts its internal circuitry to maintain a stable output voltage, even when the input voltage or load conditions change.

Detailed Application Field Plans

The MIC2172BN is commonly used in various applications, including:

1. Power Supplies: It can be used in power supply circuits to regulate the output voltage and provide a stable power source.
2. Battery-Powered Devices: The regulator can be employed in battery-powered devices to ensure consistent voltage levels and extend battery life.
3. Automotive Electronics: It finds applications in automotive electronics, such as car audio systems, where it regulates the voltage for reliable operation.
4. Industrial Equipment: The MIC2172BN is suitable for industrial equipment that requires precise voltage regulation, such as control systems and sensors.

Detailed and Complete Alternative Models

Some alternative models to the MIC2172BN include:

1. LM317: A popular adjustable voltage regulator with similar characteristics and pin configuration.
2. LT1084: Another adjustable voltage regulator known for its low dropout voltage and high output current capability.
3. LM7805: A fixed voltage regulator that provides a stable 5V output.

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

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