MIC2940A-12BU

Product Overview

Category

The MIC2940A-12BU belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• High accuracy and low dropout voltage
• Low quiescent current
• Thermal shutdown protection
• Short-circuit current limiting

Package

The MIC2940A-12BU comes in a TO-263 package.

Essence

This voltage regulator is designed to provide a stable output voltage with high accuracy and low dropout voltage.

Packaging/Quantity

The MIC2940A-12BU is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Output Voltage: 12V
• Dropout Voltage: 0.6V (typical)
• Quiescent Current: 75μA (typical)
• Maximum Input Voltage: 26V
• Maximum Output Current: 1A
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2940A-12BU 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 voltage regulation
• Low dropout voltage ensures efficient power conversion
• Thermal shutdown protection prevents overheating
• Short-circuit current limiting protects the device from excessive current

Advantages and Disadvantages

Advantages

• High accuracy voltage regulation ensures stable performance of electronic circuits.
• Low dropout voltage minimizes power loss and improves efficiency.
• Thermal shutdown protection prevents damage due to overheating.
• Short-circuit current limiting protects the device from excessive current flow.

Disadvantages

• Limited maximum output current of 1A may not be suitable for high-power applications.
• The TO-263 package may require additional space on the circuit board.

Working Principles

The MIC2940A-12BU operates by comparing the output voltage to a reference voltage and adjusting the internal circuitry to maintain a stable output voltage. It uses a feedback mechanism to continuously monitor and regulate the output voltage, compensating for any changes in input voltage or load conditions.

Detailed Application Field Plans

The MIC2940A-12BU is commonly used in various electronic devices and systems, including:

1. Power supplies for microcontrollers and other low-power digital circuits
2. Battery-powered devices requiring stable voltage regulation
3. Automotive electronics, such as infotainment systems and engine control units
4. Industrial control systems and automation equipment
5. Communication devices, such as routers and modems

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar characteristics and pin configuration.
2. LT1086: Another fixed voltage regulator with higher maximum output current capability.
3. LM1117: Low dropout voltage regulator available in various fixed output voltages.

These alternative models offer different specifications and features, providing flexibility for various application requirements.

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