MIC4681-5.0BM TR

Product Overview

Category

The MIC4681-5.0BM TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 5.0V
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV
• Low Quiescent Current: 120µA
• Low Shutdown Current: 0.1µA
• Thermal Shutdown Protection
• Short Circuit Protection
• Overcurrent Protection

Package

The MIC4681-5.0BM TR comes in a small outline SOT-23 package.

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage, even when the input voltage varies.

Packaging/Quantity

The MIC4681-5.0BM TR is typically packaged in reels containing 3000 units.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 5.0V ±2%
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 120µA (typical)
• Shutdown Current: 0.1µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Thermal Resistance: 200°C/W (junction to ambient)

Detailed Pin Configuration

The MIC4681-5.0BM TR has three pins:

1. VIN: Input voltage pin.
2. GND: Ground pin.
3. VOUT: Output voltage pin.

Functional Features

• Voltage Regulation: The MIC4681-5.0BM TR provides a stable output voltage of 5.0V, regardless of variations in the input voltage.
• Low Quiescent Current: The regulator consumes only 120µA of current when operating.
• Shutdown Mode: The device can be put into a low-power shutdown mode, reducing the current consumption to 0.1µA.
• Thermal Shutdown Protection: The regulator includes thermal shutdown protection to prevent damage due to excessive heat.
• Short Circuit and Overcurrent Protection: The MIC4681-5.0BM TR incorporates short circuit and overcurrent protection to safeguard the circuitry.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection ensures safe operation.
• Short circuit and overcurrent protection enhance reliability.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Dropout voltage of 300mV may result in some power loss.

Working Principles

The MIC4681-5.0BM TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage. The regulator operates by dissipating excess voltage as heat, resulting in a dropout voltage.

Detailed Application Field Plans

The MIC4681-5.0BM TR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MIC4681-5.0BM TR include: - LM7805: A popular linear voltage regulator with a fixed 5.0V output. - LT1763: A low dropout linear regulator with adjustable output voltage. - TPS7A4700: An ultra-low noise linear regulator suitable for sensitive applications.

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

In conclusion, the MIC4681-5.0BM TR is a voltage regulator that provides stable and regulated 5.0V output voltage. It offers advantages such as wide input voltage range, low quiescent current, and various protection features. However, it has limitations in terms of maximum output current and dropout voltage. This product finds applications in diverse electronic systems and has alternative models available for consideration.