MIC2937A-12BT

Product Overview

Category

The MIC2937A-12BT belongs to the category of voltage regulators.

Use

It is primarily used to regulate voltage in electronic circuits.

Characteristics

• High accuracy
• Low dropout voltage
• Low quiescent current
• Thermal shutdown protection

Package

The MIC2937A-12BT comes in a TO-220 package.

Essence

This voltage regulator ensures stable and reliable power supply for various electronic devices.

Packaging/Quantity

The MIC2937A-12BT is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Output Voltage: 12V
• Input Voltage Range: 14V to 26V
• Dropout Voltage: 1.2V (maximum)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2937A-12BT has three pins:

1. VIN (Pin 1): Input voltage pin
2. GND (Pin 2): Ground pin
3. VOUT (Pin 3): Output voltage pin

Functional Features

• High Accuracy: The MIC2937A-12BT provides precise voltage regulation, ensuring stable output even under varying load conditions.
• Low Dropout Voltage: With a maximum dropout voltage of 1.2V, this regulator can maintain a stable output even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The regulator consumes minimal current when no load is connected, reducing power wastage.
• Thermal Shutdown Protection: In case of excessive temperature, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• High accuracy ensures reliable voltage regulation.
• Low dropout voltage allows for efficient power conversion.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection enhances safety and reliability.

Disadvantages

• Limited input voltage range (14V to 26V).
• Higher cost compared to some alternative models.

Working Principles

The MIC2937A-12BT utilizes a feedback mechanism to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry accordingly. This ensures that the output voltage remains stable, even when the input voltage or load conditions change.

Detailed Application Field Plans

The MIC2937A-12BT finds applications in various electronic systems, including:

1. Power supply units for computer peripherals
2. Industrial control systems
3. Automotive electronics
4. Telecommunications equipment
5. Audio amplifiers

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with a wide input voltage range.
2. LT1084: Offers higher output current capability and lower dropout voltage.
3. LM7805: Fixed 5V regulator commonly used in low-power applications.

These alternative models provide similar functionality but may have different specifications and package options.

In conclusion, the MIC2937A-12BT is a high-accuracy voltage regulator with low dropout voltage and quiescent current. Its thermal shutdown protection ensures safe operation. With applications in various industries, it provides reliable voltage regulation for electronic systems.