MIC4680-3.3BM

Product Overview

Category

The MIC4680-3.3BM belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Low Quiescent Current: 120µA
• Low Shutdown Current: 0.1µA
• Thermal Shutdown Protection
• Short-Circuit Protection
• Overcurrent Protection

Package

The MIC4680-3.3BM comes in a small outline package (SOT-23-5).

Essence

This voltage regulator is designed to provide a stable output voltage of 3.3V, regardless of input voltage fluctuations.

Packaging/Quantity

The MIC4680-3.3BM is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 120µA
• Shutdown Current: 0.1µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5

Detailed Pin Configuration

The MIC4680-3.3BM has five pins arranged as follows:

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

Functional Features

• Voltage Regulation: The MIC4680-3.3BM ensures a stable output voltage of 3.3V, even with varying input voltages.
• Low Quiescent Current: It has a low quiescent current of 120µA, making it suitable for battery-powered applications.
• Thermal Shutdown Protection: The regulator includes thermal shutdown protection to prevent overheating and damage.
• Short-Circuit Protection: It features built-in short-circuit protection to safeguard the circuit from excessive current.
• Overcurrent Protection: The MIC4680-3.3BM incorporates overcurrent protection to prevent damage due to excessive load currents.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows flexibility in various applications.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection prevents overheating and damage.
• Short-circuit and overcurrent protection enhance circuit reliability.

Disadvantages

• Limited maximum output current of 1A may not be sufficient for high-power applications.
• Dropout voltage of 300mV at 1A may result in some power loss.

Working Principles

The MIC4680-3.3BM utilizes a feedback control mechanism to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to regulate the output voltage at 3.3V. The device continuously monitors the input voltage, adjusting its internal components to compensate for any variations and provide a stable output.

Detailed Application Field Plans

The MIC4680-3.3BM is widely used in various electronic applications, including:

1. Battery-Powered Devices: It is commonly employed in portable devices such as smartphones, tablets, and portable media players to regulate voltage levels and extend battery life.
2. Embedded Systems: The regulator finds application in embedded systems, providing stable power supply for microcontrollers, sensors, and other components.
3. Industrial Control Systems: It is used in industrial control systems to ensure stable voltage supply for PLCs (Programmable Logic Controllers), motor drives, and other critical components.
4. Automotive Electronics: The MIC4680-3.3BM is suitable for automotive applications, including infotainment systems, navigation devices, and engine control units.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package type.
2. LT1763-3.3: Another alternative offering low dropout voltage and high output current capability.
3. TPS79633: An alternative model with excellent line and load regulation characteristics.

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

In conclusion, the MIC4680-3.3BM is a voltage regulator that provides a stable 3.3V output voltage. With its