MIC5209-4.2YS-TR

Product Overview

Category

MIC5209-4.2YS-TR belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage Output: 4.2V
• Package Type: SOT-223
• Essence: Low dropout voltage regulator
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

The MIC5209-4.2YS-TR voltage regulator has the following specifications:

• Input Voltage Range: 2.5V to 16V
• Dropout Voltage: 120mV at 150mA
• Output Current: 150mA
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Quiescent Current: 75µA (typical)

Detailed Pin Configuration

The MIC5209-4.2YS-TR voltage regulator has three pins:

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

Functional Features

• Low dropout voltage: The MIC5209-4.2YS-TR exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Low quiescent current: With a typical quiescent current of only 75µA, this voltage regulator minimizes power consumption when in standby mode.
• Thermal shutdown protection: The device includes thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Stable output voltage: The MIC5209-4.2YS-TR provides a stable output voltage of 4.2V, ensuring reliable operation of connected components.
• Low dropout voltage: The low dropout voltage allows for efficient regulation, even with small input-output voltage differentials.
• Compact package: The SOT-223 package offers a compact form factor, making it suitable for space-constrained applications.

Disadvantages

• Limited output current: With a maximum output current of 150mA, the MIC5209-4.2YS-TR may not be suitable for high-power applications.
• Narrow input voltage range: The device requires an input voltage between 2.5V and 16V, limiting its compatibility with certain power sources.

Working Principles

The MIC5209-4.2YS-TR operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage drop across the pass transistor, the regulator ensures a stable output voltage regardless of variations in the input voltage.

Detailed Application Field Plans

The MIC5209-4.2YS-TR is commonly used in various electronic applications, including but not limited to:

1. Battery-powered devices: This voltage regulator can be employed in portable electronics, such as smartphones, tablets, and wearable devices, to provide a stable voltage supply.
2. Industrial control systems: The MIC5209-4.2YS-TR finds application in industrial automation and control systems, ensuring consistent voltage levels for reliable operation.
3. Automotive electronics: Due to its compact size and low dropout voltage, this voltage regulator is suitable for automotive applications, including infotainment systems, lighting controls, and sensors.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MIC5209-4.2YS-TR include:

1. LM1117-4.2: A popular voltage regulator with a fixed 4.2V output voltage.
2. MCP1702-4.2: Another low dropout voltage regulator with a 4.2V output.
3. LT1761-4.2: A high-performance, low dropout regulator offering a fixed 4.2V output.

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

In conclusion, the MIC5209-4.2YS-TR is a voltage regulator that provides stable and regulated voltage output of 4.2V. With its low dropout voltage, compact package, and low quiescent current, it offers advantages in various electronic applications. However, its limited output current and narrow input voltage range should be taken into consideration when selecting this device for specific projects.