MIC29501-3.3BT

Product Overview

Category

MIC29501-3.3BT belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.75V to 26V
• Output Voltage: 3.3V
• Maximum Output Current: 5A
• Dropout Voltage: 450mV at 5A
• Low Quiescent Current: 120µA
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• Adjustable Output Voltage with External Resistors

Package

MIC29501-3.3BT comes in a TO-220 package.

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4.75V to 26V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 5A
• Dropout Voltage: 450mV at 5A
• Quiescent Current: 120µA
• Line Regulation: 0.04%/V
• Load Regulation: 0.1%/A
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

MIC29501-3.3BT has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

• Voltage Regulation: MIC29501-3.3BT ensures a stable output voltage of 3.3V regardless of input voltage fluctuations.
• Thermal Shutdown Protection: It incorporates a thermal shutdown feature that protects the device from overheating.
• Short Circuit Current Limiting: The regulator limits the output current in case of a short circuit, preventing damage to the circuit.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, providing flexibility in various applications.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows compatibility with different power sources.
• High maximum output current of 5A enables it to handle demanding loads.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection ensures safe operation.
• Adjustable output voltage provides versatility.

Disadvantages

• Dropout voltage of 450mV may cause some power loss in low input voltage scenarios.
• TO-220 package might require additional heat sinking for high-power applications.

Working Principles

MIC29501-3.3BT operates based on a linear voltage regulation principle. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage of 3.3V. The regulator continuously monitors the input voltage, load conditions, and temperature to ensure proper regulation and protection.

Detailed Application Field Plans

MIC29501-3.3BT finds applications in various fields, including but not limited to:

1. Power supply units for microcontrollers and digital circuits.
2. Battery-powered devices requiring a stable 3.3V voltage source.
3. Industrial automation systems.
4. Automotive electronics.
5. Communication equipment.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MIC29501-3.3BT are:

1. LM1117-3.3: A popular voltage regulator with a fixed 3.3V output.
2. LT1086-3.3: Adjustable voltage regulator with a maximum output current of 1.5A.
3. TPS7A3301: Ultra-low dropout voltage regulator with a fixed 3.3V output and high PSRR.

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

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