LTC1731EMS8-4.2#PBF
Product Overview
Category
The LTC1731EMS8-4.2#PBF belongs to the category of voltage regulators.
Use
This product is primarily used for regulating voltage in electronic circuits.
Characteristics
- Input Voltage Range: 2.7V to 5.5V
- Output Voltage: 4.2V
- Output Current: Up to 500mA
- Dropout Voltage: 300mV at 500mA
- Low Quiescent Current: 30µA
- Shutdown Current: <1µA
- Package Type: MSOP-8
- Operating Temperature Range: -40°C to 85°C
Packaging/Quantity
The LTC1731EMS8-4.2#PBF is available in a standard MSOP-8 package. It is typically sold in reels containing a quantity of 250 units.
Specifications
- Input Voltage Range: 2.7V to 5.5V
- Output Voltage: 4.2V ±2%
- Output Current: Up to 500mA
- Dropout Voltage: 300mV at 500mA
- Quiescent Current: 30µA
- Shutdown Current: <1µA
- Line Regulation: ±0.05% (Typical)
- Load Regulation: ±0.1% (Typical)
- Ripple Rejection: 70dB (Typical)
- Operating Temperature Range: -40°C to 85°C
Detailed Pin Configuration
The LTC1731EMS8-4.2#PBF has the following pin configuration:
- VIN: Input Voltage
- GND: Ground
- FB: Feedback Pin
- EN: Enable Pin
- VOUT: Output Voltage
- GND: Ground
- GND: Ground
- VOUT: Output Voltage
Functional Features
- Wide input voltage range allows for flexibility in various applications.
- Low dropout voltage ensures efficient regulation even with low input voltages.
- Low quiescent current minimizes power consumption during standby or idle modes.
- Shutdown mode with ultra-low current consumption enables power-saving functionality.
- Excellent line and load regulation provide stable output voltage under varying conditions.
- High ripple rejection ratio ensures clean output voltage, reducing noise interference.
Advantages
- Compact MSOP-8 package offers space-saving benefits.
- Wide operating temperature range allows for use in extreme environments.
- High output current capability supports a wide range of applications.
- Low dropout voltage enables efficient operation even with low input voltages.
- Excellent line and load regulation ensure stable output voltage under varying conditions.
Disadvantages
- Limited output voltage options restrict its use in certain applications requiring different voltage levels.
- The MSOP-8 package may not be suitable for all PCB layouts and assembly processes.
Working Principles
The LTC1731EMS8-4.2#PBF is a linear voltage regulator that uses a feedback mechanism to maintain a constant output voltage. It operates by comparing the output voltage with a reference voltage and adjusting the internal circuitry to regulate the output voltage at the desired level. The device utilizes a pass transistor to control the output voltage based on the feedback received.
Detailed Application Field Plans
The LTC1731EMS8-4.2#PBF can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial control systems - Automotive electronics - Medical equipment
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the LTC1731EMS8-4.2#PBF include: - LT1763 - LM1117 - ADP3339
These models provide comparable voltage regulation capabilities and can be considered as alternatives based on specific application requirements.
In conclusion, the LTC1731EMS8-4.2#PBF is a voltage regulator with a wide input voltage range, low dropout voltage, and excellent line and load regulation. It is available in an MSOP-8 package and is commonly used in various electronic applications. While it has limitations in terms of output voltage options, it offers advantages such as compact size, high output current capability, and low power consumption. Alternative models like LT1763, LM1117, and ADP3339 can be considered based on specific application needs.
Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af LTC1731EMS8-4.2#PBF i tekniske løsninger
Sure! Here are 10 common questions and answers related to the application of LTC1731EMS8-4.2#PBF in technical solutions:
Q1: What is the LTC1731EMS8-4.2#PBF? A1: The LTC1731EMS8-4.2#PBF is a specific model of LTC1731, which is a high-efficiency synchronous buck regulator IC.
Q2: What is the input voltage range for LTC1731EMS8-4.2#PBF? A2: The input voltage range for LTC1731EMS8-4.2#PBF is typically between 2.25V and 5.5V.
Q3: What is the output voltage of LTC1731EMS8-4.2#PBF? A3: The output voltage of LTC1731EMS8-4.2#PBF is fixed at 4.2V.
Q4: What is the maximum output current of LTC1731EMS8-4.2#PBF? A4: The maximum output current of LTC1731EMS8-4.2#PBF is typically 1.5A.
Q5: What is the efficiency of LTC1731EMS8-4.2#PBF? A5: The efficiency of LTC1731EMS8-4.2#PBF can reach up to 95% under certain operating conditions.
Q6: Can LTC1731EMS8-4.2#PBF be used in battery-powered applications? A6: Yes, LTC1731EMS8-4.2#PBF is suitable for battery-powered applications due to its low quiescent current and high efficiency.
Q7: Does LTC1731EMS8-4.2#PBF have built-in protection features? A7: Yes, LTC1731EMS8-4.2#PBF includes various protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.
Q8: What is the operating temperature range for LTC1731EMS8-4.2#PBF? A8: The operating temperature range for LTC1731EMS8-4.2#PBF is typically between -40°C and 85°C.
Q9: Can LTC1731EMS8-4.2#PBF be used in automotive applications? A9: Yes, LTC1731EMS8-4.2#PBF is suitable for automotive applications as it meets the necessary requirements and has a wide input voltage range.
Q10: Are there any application notes or reference designs available for LTC1731EMS8-4.2#PBF? A10: Yes, Linear Technology (now part of Analog Devices) provides application notes and reference designs that can help with the implementation of LTC1731EMS8-4.2#PBF in various technical solutions.
Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and relevant documentation for accurate information.