MIC29311-5.1BT

Product Overview

Category

MIC29311-5.1BT belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 6V to 26V
• Output Voltage: 5.1V
• Maximum Output Current: 3A
• Low Dropout Voltage: 450mV at 3A
• Adjustable Output Voltage with External Resistors
• Thermal Shutdown Protection
• Current Limiting
• Short Circuit Protection

Package

MIC29311-5.1BT comes in a TO-220 package.

Essence

The essence of this product is to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity

It is typically available in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 6V to 26V
• Output Voltage: 5.1V ±2%
• Output Current: Up to 3A
• Dropout Voltage: 450mV (at 3A)
• Line Regulation: 0.04%/V
• Load Regulation: 0.1%/A
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

MIC29311-5.1BT 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

• Voltage Regulation: The MIC29311-5.1BT provides a stable output voltage of 5.1V, even when the input voltage varies within the specified range.
• Adjustable Output: The output voltage can be adjusted using external resistors, allowing flexibility in different applications.
• Thermal Shutdown Protection: The regulator includes a thermal shutdown feature that protects it from overheating by shutting down the output when the temperature exceeds a safe limit.
• Current Limiting: It incorporates current limiting functionality to protect the circuit from excessive current flow.
• Short Circuit Protection: The device is equipped with short circuit protection, preventing damage to the regulator and connected components in case of a short circuit.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows compatibility with various power sources.
• Low dropout voltage ensures efficient regulation even with small voltage differences.
• Adjustable output voltage provides versatility for different applications.
• Thermal shutdown protection prevents damage due to overheating.
• Current limiting and short circuit protection enhance the reliability of the circuit.

Disadvantages

• The TO-220 package may require additional space on the PCB compared to smaller packages.
• The quiescent current of 10mA may not be suitable for ultra-low power applications.

Working Principles

MIC29311-5.1BT 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 compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MIC29311-5.1BT is widely used in various electronic applications, including:

1. Power Supply Units (PSUs)
2. Battery-powered devices
3. Automotive electronics
4. Industrial control systems
5. Audio amplifiers
6. LED lighting systems
7. Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MIC29311-5.1BT are:

1. LM1117-5.0: A 5V voltage regulator with adjustable output and low dropout voltage.
2. LT1084: A high-current, adjustable linear voltage regulator with a wide input voltage range.
3. LM317: A versatile voltage regulator with adjustable output and thermal shutdown protection.

These alternative models can be considered based on specific application requirements and design constraints.

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