MIC5239-3.3YM

Product Overview

Category

MIC5239-3.3YM 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: 120mV at 100mA
• Low Quiescent Current: 75µA
• Thermal Shutdown Protection
• Short Circuit Protection

Package

MIC5239-3.3YM is available in a miniature SOT-23 package.

Essence

The essence of MIC5239-3.3YM lies in its ability to provide a stable output voltage despite variations in input voltage and load conditions.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 150mA
• Dropout Voltage: 120mV (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

Detailed Pin Configuration

MIC5239-3.3YM 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: MIC5239-3.3YM ensures a stable output voltage of 3.3V, even with varying input voltages and load conditions.
• Low Dropout Voltage: With a dropout voltage as low as 120mV at 100mA, this regulator minimizes power dissipation.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection to prevent damage due to excessive temperature.
• Short Circuit Protection: MIC5239-3.3YM includes short circuit protection to safeguard the circuit from potential damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage reduces power dissipation.
• Thermal shutdown and short circuit protection enhance reliability.
• Miniature SOT-23 package enables space-saving designs.

Disadvantages

• Limited maximum output current of 150mA may not be suitable for high-power applications.
• Output voltage is fixed at 3.3V, limiting flexibility in certain scenarios.

Working Principles

MIC5239-3.3YM operates based on the principle of linear voltage regulation. It utilizes a feedback mechanism to maintain a constant output voltage regardless of variations in input voltage or load conditions. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to regulate the output voltage at the desired level.

Detailed Application Field Plans

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

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the efficient voltage regulation provided by MIC5239-3.3YM.
2. IoT devices: Internet of Things (IoT) devices often operate on low voltages and require stable power supplies. This voltage regulator can be used in sensors, smart home devices, and other IoT applications.
3. Automotive electronics: MIC5239-3.3YM can be employed in automotive systems, such as infotainment systems, dashboard displays, and control modules, to ensure reliable voltage regulation.
4. Industrial automation: In industrial settings, this voltage regulator can be utilized in control systems, motor drives, and other automation equipment.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. MCP1700-3302E: Another alternative offering a fixed 3.3V output voltage and low dropout voltage.
3. LT1763-3.3: An alternative model with higher maximum output current and adjustable output voltage.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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