MIC2920A-12BS TR

Product Overview

Category

The MIC2920A-12BS TR belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• High output current capability
• Thermal shutdown protection
• Short-circuit current limiting
• Reverse battery protection

Package

The MIC2920A-12BS TR comes in a small outline transistor (SOT-223) package.

Essence

The essence of this product lies in its ability to provide stable and regulated voltage output, ensuring the proper functioning of electronic devices.

Packaging/Quantity

The MIC2920A-12BS TR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 26V
• Output Voltage: 12V
• Dropout Voltage: 380mV at 100mA
• Output Current: 1A
• Line Regulation: 0.04% typical
• Load Regulation: 0.05% typical
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2920A-12BS TR has three pins:

1. Vin (Pin 1): Input voltage pin
2. Vout (Pin 2): Output voltage pin
3. GND (Pin 3): Ground pin

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High output current capability allows for powering a wide range of electronic devices.
• Thermal shutdown protection prevents the regulator from overheating and damaging itself or other components.
• Short-circuit current limiting protects against excessive current flow during a short circuit event.
• Reverse battery protection safeguards the regulator from damage caused by reverse polarity connection.

Advantages and Disadvantages

Advantages

• Stable and regulated output voltage
• Wide input voltage range
• High output current capability
• Thermal shutdown and short-circuit protection
• Reverse battery protection

Disadvantages

• Dropout voltage may cause some power loss in low input voltage scenarios.
• Limited to fixed output voltage of 12V.

Working Principles

The MIC2920A-12BS TR operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry monitors the input and output voltages, making necessary adjustments to maintain a constant output voltage despite changes in the input voltage or load conditions.

Detailed Application Field Plans

The MIC2920A-12BS TR finds applications in various electronic systems that require a stable and regulated 12V power supply. Some common application fields include:

1. Automotive electronics
2. Industrial control systems
3. Telecommunications equipment
4. Power management modules
5. Battery-powered devices

Detailed and Complete Alternative Models

1. LM317T: Adjustable voltage regulator with similar characteristics and package.
2. LT1086: Fixed voltage regulator with higher output current capability.
3. LM7805: Fixed voltage regulator with lower dropout voltage.

These alternative models can be considered based on specific requirements and compatibility with the application.

In conclusion, the MIC2920A-12BS TR is a voltage regulator that provides stable and regulated 12V output voltage. It offers several features such as low dropout voltage, high output current capability, and protection mechanisms. Its applications span across various industries, and there are alternative models available for different needs.