MIC2937A-12WT

Product Overview

Category

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

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• High accuracy
• Low dropout voltage
• Current limiting
• Thermal shutdown protection

Package

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

Essence

This voltage regulator ensures stable and reliable power supply by maintaining a constant output voltage.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Voltage: 12V
• Dropout Voltage: 1.2V (maximum)
• Output Current: Up to 1A
• Line Regulation: 0.01%/V (typical)
• Load Regulation: 0.04% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2937A-12WT 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

• High Accuracy: The MIC2937A-12WT provides precise voltage regulation, ensuring stable performance of connected devices.
• Low Dropout Voltage: With a low dropout voltage, this regulator can maintain a stable output even when the input voltage is close to the desired output voltage.
• Current Limiting: It incorporates current limiting functionality to protect both the regulator and the load from excessive current.
• Thermal Shutdown Protection: The device includes thermal shutdown protection, which prevents damage due to excessive heat.

Advantages and Disadvantages

Advantages

• High accuracy ensures reliable voltage regulation.
• Low dropout voltage allows for efficient power conversion.
• Current limiting protects the regulator and load from damage.
• Thermal shutdown protection prevents overheating.

Disadvantages

• Limited output current capacity (up to 1A).
• Requires external components for proper operation.

Working Principles

The MIC2937A-12WT operates by comparing the output voltage with a reference voltage. It adjusts the pass transistor's resistance to maintain a constant output voltage, compensating for any changes in the input voltage or load conditions. The device continuously monitors the output voltage and adjusts its internal circuitry accordingly.

Detailed Application Field Plans

The MIC2937A-12WT is commonly used in various applications, including: - Power supplies for microcontrollers and other digital ICs - Battery-powered devices - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the MIC2937A-12WT are: - LM317T - LT1085CT - LM1117-12

These models offer similar functionality and characteristics, providing options for different design requirements.

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