MIC2920A-4.8WT
Product Overview
Category
The MIC2920A-4.8WT belongs to the category of voltage regulators.
Use
This product is primarily used for regulating voltage in electronic circuits.
Characteristics
- Low dropout voltage
- High output current capability
- Thermal shutdown protection
- Short-circuit current limiting
- Reverse battery protection
Package
The MIC2920A-4.8WT comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.
Essence
The essence of the MIC2920A-4.8WT is its ability to provide stable and regulated voltage output in various electronic applications.
Packaging/Quantity
The MIC2920A-4.8WT is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.
Specifications
- Input Voltage Range: 2.5V to 26V
- Output Voltage: 4.8V
- Dropout Voltage: 380mV at 100mA
- Output Current: Up to 1A
- Quiescent Current: 120µA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The MIC2920A-4.8WT has three pins:
- Vin (Pin 1): Input voltage pin
- Vout (Pin 2): Output voltage pin
- GND (Pin 3): Ground pin
Functional Features
- Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
- High output current capability allows the regulator to handle demanding loads.
- Thermal shutdown protection prevents the device from overheating.
- Short-circuit current limiting protects the regulator and the connected circuitry from excessive current.
- Reverse battery protection safeguards against accidental reverse polarity connection.
Advantages and Disadvantages
Advantages
- Stable and regulated output voltage
- Wide input voltage range
- High output current capability
- Thermal shutdown protection
- Short-circuit current limiting
- Reverse battery protection
Disadvantages
- Dropout voltage may cause some power loss in low input voltage scenarios.
- Higher quiescent current compared to some other voltage regulators.
Working Principles
The MIC2920A-4.8WT is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage to adjust the pass transistor's resistance, thereby maintaining a constant output voltage.
Detailed Application Field Plans
The MIC2920A-4.8WT finds applications in various electronic devices and systems, including but not limited to: - Power supplies - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers
Detailed and Complete Alternative Models
Some alternative models to the MIC2920A-4.8WT include: - LM2940-4.8 - LT1085CT-4.8 - ADP3339AKCZ-4.8
These models offer similar voltage regulation capabilities and can be used as alternatives based on specific application requirements.
In conclusion, the MIC2920A-4.8WT is a voltage regulator with excellent characteristics such as low dropout voltage, high output current capability, and thermal shutdown protection. Its wide range of applications and availability of alternative models make it a versatile choice for various electronic circuits and systems.
技術ソリューションにおける MIC2920A-4.8WT の適用に関連する 10 件の一般的な質問と回答をリストします。
Sure! Here are 10 common questions and answers related to the application of MIC2920A-4.8WT in technical solutions:
Q: What is the MIC2920A-4.8WT? A: The MIC2920A-4.8WT is a low-dropout voltage regulator (LDO) manufactured by Microchip Technology. It provides a fixed output voltage of 4.8V with a maximum dropout voltage of 600mV.
Q: What is the input voltage range for the MIC2920A-4.8WT? A: The input voltage range for the MIC2920A-4.8WT is typically between 5.5V and 26V.
Q: What is the maximum output current of the MIC2920A-4.8WT? A: The MIC2920A-4.8WT can provide a maximum output current of 250mA.
Q: Can the MIC2920A-4.8WT be used in battery-powered applications? A: Yes, the MIC2920A-4.8WT can be used in battery-powered applications as it has a low quiescent current and low dropout voltage, making it suitable for efficient power conversion.
Q: Is the MIC2920A-4.8WT short-circuit protected? A: Yes, the MIC2920A-4.8WT has built-in short-circuit protection, which helps prevent damage to the device in case of a short circuit on the output.
Q: Can the MIC2920A-4.8WT handle high temperatures? A: Yes, the MIC2920A-4.8WT is designed to operate over a wide temperature range, typically from -40°C to +125°C.
Q: What are the typical applications of the MIC2920A-4.8WT? A: The MIC2920A-4.8WT is commonly used in various technical solutions, including battery-powered devices, industrial control systems, automotive electronics, and portable consumer electronics.
Q: Does the MIC2920A-4.8WT require any external components for operation? A: Yes, the MIC2920A-4.8WT requires a minimum of two external capacitors (input and output capacitors) for stable operation. The datasheet provides recommended values for these capacitors.
Q: Can the MIC2920A-4.8WT be used as a voltage regulator for microcontrollers or other digital ICs? A: Yes, the MIC2920A-4.8WT can be used as a voltage regulator for microcontrollers and other digital ICs that require a stable 4.8V power supply.
Q: Is there a pin-compatible alternative to the MIC2920A-4.8WT with a different output voltage? A: Yes, Microchip Technology offers several pin-compatible alternatives to the MIC2920A-4.8WT with different fixed output voltages. These include the MIC2920A-3.3WT (3.3V), MIC2920A-5.0WT (5.0V), and others.
Please note that the answers provided here are general and may vary depending on specific application requirements. It's always recommended to refer to the device datasheet and consult with an engineer for accurate and detailed information.