MIC5239-1.8BM
Product Overview
Category
MIC5239-1.8BM belongs to the category of voltage regulators.
Use
It is commonly used to regulate and stabilize voltage in electronic circuits.
Characteristics
- Input Voltage Range: 2.3V to 16V
- Output Voltage: 1.8V
- 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
Packaging/Quantity
MIC5239-1.8BM is available in a small SOT-23-5 package. It is typically sold in reels containing 3000 units.
Specifications
- Input Voltage Range: 2.3V to 16V
- Output Voltage: 1.8V ±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
Detailed Pin Configuration
MIC5239-1.8BM 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
- Low Dropout Voltage: The MIC5239-1.8BM exhibits a low dropout voltage of 200mV at 100mA, ensuring efficient regulation even with small input-output differentials.
- Thermal Shutdown Protection: The regulator includes thermal shutdown protection, which prevents damage due to excessive temperature.
- Short Circuit Current Limiting: It incorporates short circuit current limiting to protect the device and the connected circuitry from damage in case of a short circuit.
Advantages and Disadvantages
Advantages
- Wide input voltage range allows for versatile applications.
- Low quiescent current minimizes power consumption.
- Small package size enables space-saving designs.
- Thermal shutdown protection ensures device safety.
- Short circuit current limiting protects the circuitry.
Disadvantages
- Limited output current capacity (up to 150mA).
- Output voltage fixed at 1.8V, not adjustable.
Working Principles
MIC5239-1.8BM is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from a voltage divider network. The pass transistor adjusts its resistance to maintain a constant output voltage despite variations in the input voltage and load conditions.
Detailed Application Field Plans
The MIC5239-1.8BM can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronic devices - Embedded systems - Automotive electronics - Industrial control systems
Detailed and Complete Alternative Models
Some alternative models to MIC5239-1.8BM include: - LM1117-1.8 - LT1763-1.8 - MCP1700-1.8
These alternatives offer similar functionality and specifications, providing options for different design requirements.
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기술 솔루션에 MIC5239-1.8BM 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of MIC5239-1.8BM in technical solutions:
Q1: What is MIC5239-1.8BM? A1: MIC5239-1.8BM is a specific model of voltage regulator IC (integrated circuit) manufactured by Microchip Technology. It is designed to provide a regulated output voltage of 1.8V.
Q2: What are the typical applications of MIC5239-1.8BM? A2: MIC5239-1.8BM is commonly used in various electronic devices and systems where a stable 1.8V power supply is required, such as microcontrollers, sensors, and low-power digital circuits.
Q3: What is the input voltage range for MIC5239-1.8BM? A3: The input voltage range for MIC5239-1.8BM is typically between 2.5V and 16V. However, it is recommended to refer to the datasheet for the specific operating conditions and limitations.
Q4: How much current can MIC5239-1.8BM provide? A4: MIC5239-1.8BM can provide a maximum output current of up to 150mA. It is important to consider the load requirements and ensure that the current draw does not exceed this limit.
Q5: Does MIC5239-1.8BM require any external components for operation? A5: Yes, MIC5239-1.8BM requires a few external components for proper operation, including input and output capacitors for stability and noise filtering. The datasheet provides detailed guidelines on component selection and placement.
Q6: Is MIC5239-1.8BM capable of handling thermal considerations? A6: Yes, MIC5239-1.8BM has built-in thermal protection features to prevent overheating. However, it is still important to consider proper heat dissipation and thermal management in the overall system design.
Q7: Can MIC5239-1.8BM operate in a wide temperature range? A7: Yes, MIC5239-1.8BM is designed to operate within a wide temperature range, typically from -40°C to +125°C. This makes it suitable for various industrial and automotive applications.
Q8: Does MIC5239-1.8BM have any built-in protection features? A8: Yes, MIC5239-1.8BM includes several protection features, such as overcurrent protection, thermal shutdown, and reverse battery protection. These features help safeguard the IC and the connected components.
Q9: Can MIC5239-1.8BM be used in battery-powered applications? A9: Yes, MIC5239-1.8BM can be used in battery-powered applications. Its low quiescent current and efficient power conversion make it suitable for extending battery life in portable devices.
Q10: Are there any specific layout considerations for using MIC5239-1.8BM? A10: Yes, proper PCB layout techniques should be followed to minimize noise, ensure stable operation, and optimize thermal performance. The datasheet provides guidelines and recommended layouts for reference.
Please note that these answers are general and may vary depending on the specific requirements and conditions of your technical solution. Always refer to the official datasheet and consult with an expert for accurate and detailed information.