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MIC4685BR
Product Overview
Category
MIC4685BR belongs to the category of integrated circuits (ICs).
Use
It is commonly used as a voltage regulator in electronic devices.
Characteristics
- Input Voltage Range: 2.7V to 16V
- Output Voltage Range: 1.25V to 13.2V
- Maximum Output Current: 500mA
- Dropout Voltage: 300mV at 500mA
- Low Quiescent Current: 120µA
- Low Shutdown Current: 0.1µA
- Thermal Shutdown Protection
- Short-Circuit Protection
Package
MIC4685BR is available in a small outline package (SOIC) with eight pins.
Essence
The essence of MIC4685BR lies in its ability to regulate voltage efficiently and reliably, ensuring stable power supply for electronic devices.
Packaging/Quantity
MIC4685BR is typically sold in reels containing 2500 units per reel.
Specifications
- Input Voltage Range: 2.7V to 16V
- Output Voltage Range: 1.25V to 13.2V
- Output Current: Up to 500mA
- Dropout Voltage: 300mV at 500mA
- Quiescent Current: 120µA
- Shutdown Current: 0.1µA
- Operating Temperature Range: -40°C to +125°C
- Package Type: SOIC-8
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- FB: Feedback pin for setting output voltage
- EN: Enable pin for turning the regulator on/off
- VOUT: Output voltage pin
- NC: No connection pin
- NC: No connection pin
- VREF: Reference voltage pin
Functional Features
- Voltage Regulation: MIC4685BR provides precise voltage regulation within the specified input and output voltage ranges.
- Low Quiescent Current: The regulator has a low quiescent current, minimizing power consumption when the load is light.
- Thermal Shutdown Protection: It incorporates thermal shutdown protection to prevent damage due to excessive heat.
- Short-Circuit Protection: The device features short-circuit protection, safeguarding against potential damage caused by short circuits.
Advantages and Disadvantages
Advantages
- Wide input voltage range allows for versatile applications.
- Low quiescent current minimizes power consumption.
- Thermal shutdown protection ensures safe operation.
- Short-circuit protection prevents damage to the device.
Disadvantages
- Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
- Dropout voltage of 300mV at 500mA may result in some power loss.
Working Principles
MIC4685BR operates as a linear voltage regulator. It takes an input voltage within the specified range and regulates it to provide a stable output voltage. The feedback pin (FB) is used to set the desired output voltage. The enable pin (EN) controls the on/off state of the regulator. When enabled, the regulator actively adjusts the output voltage to maintain the desired level. In case of excessive heat or a short circuit, the thermal shutdown and short-circuit protection mechanisms ensure the safety of the device and connected components.
Detailed Application Field Plans
MIC4685BR finds applications in various electronic devices where stable voltage regulation is required. Some common application fields include: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems - Communication equipment
Detailed and Complete Alternative Models
- LM317: A popular adjustable linear voltage regulator with similar specifications.
- LT1084: A high-current linear voltage regulator suitable for demanding applications.
- LM1117: Low dropout voltage regulator with adjustable and fixed output options.
These alternative models offer similar functionality and can be considered as substitutes for MIC4685BR based on specific requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MIC4685BR v technických řešeních
Sure! Here are 10 common questions and answers related to the application of MIC4685BR in technical solutions:
Q: What is MIC4685BR? A: MIC4685BR is a voltage regulator IC (integrated circuit) that provides a regulated output voltage from an input voltage source.
Q: What is the input voltage range of MIC4685BR? A: The input voltage range of MIC4685BR is typically between 4.5V and 36V.
Q: What is the output voltage range of MIC4685BR? A: The output voltage range of MIC4685BR can be adjusted from 1.25V to 33V using external resistors.
Q: What is the maximum output current of MIC4685BR? A: MIC4685BR can provide a maximum output current of up to 500mA.
Q: Is MIC4685BR suitable for battery-powered applications? A: Yes, MIC4685BR is suitable for battery-powered applications as it has low quiescent current and operates efficiently at low input voltages.
Q: Can MIC4685BR handle high input voltage transients? A: Yes, MIC4685BR has built-in protection features like overvoltage protection, thermal shutdown, and current limiting, which help it handle high input voltage transients.
Q: Does MIC4685BR require any external components for operation? A: Yes, MIC4685BR requires a few external components such as input and output capacitors, feedback resistors, and an optional bypass capacitor for stable operation.
Q: Can MIC4685BR operate in a wide temperature range? A: Yes, MIC4685BR is designed to operate in a wide temperature range, typically from -40°C to +125°C.
Q: Is MIC4685BR suitable for automotive applications? A: Yes, MIC4685BR is suitable for automotive applications as it meets the requirements for automotive-grade components and has built-in protection features.
Q: Can MIC4685BR be used in both step-up and step-down voltage regulation applications? A: No, MIC4685BR is primarily designed for step-down (buck) voltage regulation applications. For step-up (boost) applications, a different voltage regulator IC would be more appropriate.
Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.