MIC5239-3.3BS

Product Overview

Category

MIC5239-3.3BS belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.3V
• Maximum Output Current: 150mA
• Low Dropout Voltage: 200mV at 100mA
• Low Quiescent Current: 75µA
• Thermal Shutdown Protection
• Short Circuit Protection

Package

MIC5239-3.3BS is available in a small SOT-23 package.

Essence

The essence of MIC5239-3.3BS is its ability to provide a stable output voltage of 3.3V with low dropout voltage and quiescent current.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23

Detailed Pin Configuration

MIC5239-3.3BS has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Output voltage pin.

Functional Features

• Voltage Regulation: MIC5239-3.3BS provides a regulated output voltage of 3.3V, ensuring stability in electronic circuits.
• Low Dropout Voltage: The low dropout voltage of 200mV at 100mA allows for efficient power conversion.
• Thermal Shutdown Protection: The device includes thermal shutdown protection to prevent damage due to excessive heat.
• Short Circuit Protection: MIC5239-3.3BS incorporates short circuit protection, safeguarding the circuit from potential damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Small package size enables space-saving designs.
• Thermal shutdown and short circuit protection enhance reliability.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Output voltage is fixed at 3.3V, limiting flexibility in certain designs.

Working Principles

MIC5239-3.3BS operates based on a linear voltage regulator 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 device regulates the voltage by controlling the flow of current through a pass transistor, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

MIC5239-3.3BS finds applications in various electronic systems where a stable 3.3V voltage supply is required. Some common application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the low dropout voltage and low quiescent current of MIC5239-3.3BS.
2. Embedded systems: Microcontrollers, sensors, and other embedded systems often require a regulated voltage source, making this voltage regulator suitable for such applications.
3. Communication equipment: Wireless routers, modems, and communication modules can utilize MIC5239-3.3BS to ensure a stable power supply for reliable operation.

Detailed and Complete Alternative Models

1. LM1117-3.3: This voltage regulator offers similar specifications and functionality to MIC5239-3.3BS, with a slightly higher maximum output current of 800mA.
2. LT1763-3.3: Another alternative with comparable characteristics, the LT1763-3.3 provides a maximum output current of 500mA and low dropout voltage.

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

In conclusion, MIC5239-3.3BS is a voltage regulator that provides stable 3.3V output voltage with low dropout voltage and quiescent current. Its small package size, thermal shutdown protection, and short circuit protection make it suitable for various electronic applications. However, its limited maximum output current and fixed output voltage may restrict usage in certain high-power or flexible designs.