MIC2940A-3.3WT

Product Overview

Category

The MIC2940A-3.3WT belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• The MIC2940A-3.3WT is a low-dropout (LDO) voltage regulator.
• It has a fixed output voltage of 3.3V.
• This regulator can handle an input voltage range from 4V to 26V.
• It provides a maximum output current of 1A.
• The dropout voltage is typically 40mV at full load.
• It offers excellent line and load regulation.

Package

The MIC2940A-3.3WT comes in a TO-220 package, which is a widely used through-hole package for power devices.

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage despite variations in the input voltage.

Packaging/Quantity

The MIC2940A-3.3WT is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 4V to 26V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Dropout Voltage: 40mV (at full load)
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2940A-3.3WT 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

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• Excellent line and load regulation provide a stable output voltage under varying conditions.
• Overcurrent and thermal protection features safeguard the regulator and connected components.

Advantages

• Wide input voltage range allows for versatile applications.
• High output current capability makes it suitable for powering various electronic devices.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Robust protection features enhance reliability and prevent damage to the circuit.

Disadvantages

• The TO-220 package may require additional heat sinking for high-power applications.
• Fixed output voltage limits flexibility in certain designs that require adjustable voltages.

Working Principles

The MIC2940A-3.3WT utilizes a combination of internal circuitry, including a pass transistor and feedback loop, to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

The MIC2940A-3.3WT finds applications in various fields, including:

1. Power supply modules for microcontrollers and digital circuits.
2. Battery-powered devices requiring stable voltage regulation.
3. Automotive electronics, such as infotainment systems and engine control units.
4. Industrial automation systems and control panels.
5. Communication equipment, including routers and switches.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular LDO voltage regulator with similar specifications and pin configuration.
2. LT1763-3.3: Another low-dropout regulator offering excellent performance and adjustable output voltage.
3. TPS7A3301: An ultra-low dropout voltage regulator with a fixed 3.3V output and high PSRR.

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

Word count: 399 words