MIC5239-3.3BM

Product Overview

Category

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

Use

It is commonly used to regulate 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 Current Limiting
• Small Package Size: SOT-23-5

Package and Quantity

MIC5239-3.3BM is available in a SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 75µA
• Line Regulation: 0.05%/V
• Load Regulation: 0.1%/mA
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

MIC5239-3.3BM has a total of five pins:

1. VIN (Input Voltage)
2. GND (Ground)
3. EN (Enable)
4. BYP (Bypass)
5. VOUT (Output Voltage)

Functional Features

1. Low Dropout Voltage: The MIC5239-3.3BM exhibits a low dropout voltage of only 200mV at 100mA, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
2. Low Quiescent Current: With a quiescent current of only 75µA, the MIC5239-3.3BM minimizes power consumption when in standby or idle mode.
3. Thermal Shutdown Protection: The regulator incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
4. Short Circuit Current Limiting: The device is equipped with short circuit current limiting, safeguarding against potential damage caused by excessive current flow.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient regulation.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection prevents overheating.
• Short circuit current limiting protects the device.

Disadvantages

• Limited output current capacity (up to 150mA).
• SOT-23-5 package may be challenging to solder for some users.

Working Principles

MIC5239-3.3BM operates as a linear voltage regulator. It takes an input voltage within the range of 2.5V to 16V and regulates it to a stable 3.3V output voltage. The regulator achieves this by using a pass transistor that adjusts its resistance to maintain the desired output voltage despite variations in the input voltage and load conditions. The device also includes various protection features such as thermal shutdown and short circuit current limiting to ensure safe operation.

Application Field Plans

MIC5239-3.3BM finds applications in various electronic systems where a stable 3.3V voltage supply is required. Some common application areas include: - Battery-powered devices - Embedded systems - IoT devices - Consumer electronics - Industrial control systems

Alternative Models

There are several alternative models available in the market that offer similar functionality to MIC5239-3.3BM. Some popular alternatives include: - LM1117-3.3 - MCP1700-3302E/TO - LP2985-33DBVR

These alternatives can be considered based on specific requirements and availability.

In conclusion, MIC5239-3.3BM is a voltage regulator that provides stable 3.3V output voltage with low dropout and quiescent current. It offers thermal shutdown protection and short circuit current limiting for enhanced reliability. This device finds applications in various electronic systems and has alternative models available in the market.