MIC4680YM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High-performance, low-dropout voltage regulator
• Package: SOIC-8
• Essence: Provides a stable output voltage with low dropout and high accuracy
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.2V to 15V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV at 500mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 75µA typical
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4680YM has the following pin configuration:

```

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| | --| VOUT GND|-- --| VIN NC |-- --| EN NC |-- --| BYP VREF|-- |___________| ```

Functional Features

• Low dropout voltage: Ensures stable output voltage even when the input voltage is close to the desired output voltage.
• High accuracy: Provides precise output voltage regulation, suitable for applications requiring tight voltage tolerances.
• Low quiescent current: Consumes minimal current when the load is light, maximizing battery life in portable devices.
• Thermal shutdown protection: Safeguards the IC from overheating by shutting down the regulator when the temperature exceeds a safe limit.

Advantages

• Wide input voltage range allows compatibility with various power sources.
• Excellent line and load regulation ensures consistent performance under different operating conditions.
• Small package size (SOIC-8) enables space-saving designs in compact electronic devices.
• Low dropout voltage minimizes power dissipation, increasing overall efficiency.

Disadvantages

• Limited output current capability may not be suitable for high-power applications.
• Requires external capacitors for stability, adding additional components to the circuit.

Working Principles

The MIC4680YM is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage (VREF) with the feedback voltage obtained from a resistive voltage divider connected to the output. The error amplifier adjusts the pass transistor's base current to maintain the desired output voltage, compensating for load and line variations.

Detailed Application Field Plans

The MIC4680YM is commonly used in various applications, including:

1. Battery-powered devices: Provides stable voltage regulation for portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial equipment: Ensures reliable power supply for sensors, control systems, and communication modules.
3. Automotive electronics: Regulates voltage for automotive infotainment systems, lighting controls, and engine management units.
4. Telecommunications: Used in networking equipment, routers, and switches to maintain consistent voltage levels.
5. Medical devices: Provides precise voltage regulation for medical instruments and diagnostic equipment.

Alternative Models

1. MIC4680YML: Similar specifications but comes in a smaller MLP-6 package.
2. MIC4680YMT: Same specifications as MIC4680YM but available in a surface-mount SOT-23 package.
3. MIC4680YMP: Offers adjustable output voltage through an external resistor network.

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

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