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Спецификации
| Атрибут | Ценность |
| Package / Case | Bulk,Tube |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 29V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 15V |
| Voltage Dropout (Max) | 1.5V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 10 mA |
| PSRR | 75dB (120Hz) |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Through Hole |
Обзор
Description
The LM1085IT-ADJ/NOPB is a voltage regulator from Texas Instruments. It is part of the LM1085 series, which is known for offering high current output and low dropout (LDO) voltage regulation. This specific model is an adjustable version, allowing users to set the output voltage with an external resistor divider.
Key features of the LM1085IT-ADJ/NOPB include:
- Output Current: Up to 3A, suitable for high-power applications.
- Low Dropout Voltage: Typically around 1.3V at full load, enhancing efficiency.
- Adjustable Output: Allows customization of the output voltage from 1.25V to 29V.
- Thermal Protection: Built-in features to prevent overheating.
- Short-Circuit Protection: Safeguards against potential damage from output short circuits.
The LM1085IT-ADJ/NOPB is typically used in applications where efficiency and reliability are crucial, such as in computer systems, telecom equipment, and industrial instruments. It comes in a TO-220 package, which provides good thermal performance.
Key features of the LM1085IT-ADJ/NOPB include:
- Output Current: Up to 3A, suitable for high-power applications.
- Low Dropout Voltage: Typically around 1.3V at full load, enhancing efficiency.
- Adjustable Output: Allows customization of the output voltage from 1.25V to 29V.
- Thermal Protection: Built-in features to prevent overheating.
- Short-Circuit Protection: Safeguards against potential damage from output short circuits.
The LM1085IT-ADJ/NOPB is typically used in applications where efficiency and reliability are crucial, such as in computer systems, telecom equipment, and industrial instruments. It comes in a TO-220 package, which provides good thermal performance.
Equivalent
The LM1085IT-ADJ/NOPB is a low dropout (LDO) voltage regulator. Equivalent products include:
1. TI's LM1084IT-ADJ: Similar LDO with adjustable output.
2. STMicroelectronics' L78S series: Comparable LDO regulators.
3. ON Semiconductor's LM317T: Adjustable voltage regulator with similar features.
4. Linear Technology's LT1085: Another LDO with similar specs.
These alternatives may have slight variations in specifications. Always check datasheets for compatibility.
1. TI's LM1084IT-ADJ: Similar LDO with adjustable output.
2. STMicroelectronics' L78S series: Comparable LDO regulators.
3. ON Semiconductor's LM317T: Adjustable voltage regulator with similar features.
4. Linear Technology's LT1085: Another LDO with similar specs.
These alternatives may have slight variations in specifications. Always check datasheets for compatibility.
Features
The LM1085IT-ADJ/NOPB is a low drop-out voltage regulator designed for adjustable output applications. Key features include:
1. Output Current Capability: It can deliver up to 3A of output current.
2. Adjustable Output: The output voltage is adjustable from 1.25V to 13.8V, making it versatile for different applications.
3. Low Dropout Voltage: Typically around 1.3V at maximum output current, allowing for efficient operation.
4. Thermal Protection: Includes internal thermal limiting to prevent overheating.
5. Current Limiting: Features internal current limiting for added protection.
6. Output Capacitor: Requires an output capacitor for stability; compatible with a wide range of capacitors.
7. Package Type: Available in a TO-220 package which is suitable for heat dissipation.
8. Line and Load Regulation: Offers excellent line and load regulation characteristics.
9. Accuracy: Provides precise output voltage with a typical accuracy of ±1%.
10. Application Flexibility: Suitable for use in various applications, including power supplies, microprocessor power, and post regulators.
These features make the LM1085IT-ADJ/NOPB a reliable choice for applications requiring high current and adjustable voltage regulation.
1. Output Current Capability: It can deliver up to 3A of output current.
2. Adjustable Output: The output voltage is adjustable from 1.25V to 13.8V, making it versatile for different applications.
3. Low Dropout Voltage: Typically around 1.3V at maximum output current, allowing for efficient operation.
4. Thermal Protection: Includes internal thermal limiting to prevent overheating.
5. Current Limiting: Features internal current limiting for added protection.
6. Output Capacitor: Requires an output capacitor for stability; compatible with a wide range of capacitors.
7. Package Type: Available in a TO-220 package which is suitable for heat dissipation.
8. Line and Load Regulation: Offers excellent line and load regulation characteristics.
9. Accuracy: Provides precise output voltage with a typical accuracy of ±1%.
10. Application Flexibility: Suitable for use in various applications, including power supplies, microprocessor power, and post regulators.
These features make the LM1085IT-ADJ/NOPB a reliable choice for applications requiring high current and adjustable voltage regulation.
Pinout
The LM1085IT-ADJ/NOPB is a low dropout (LDO) voltage regulator with an adjustable output. It typically comes in a TO-220 package, which usually has three pins. The pin functions are as follows:
1. Input (IN): This pin is where the unregulated input voltage is applied. The input voltage must be higher than the desired output voltage by a certain margin to ensure proper regulation.
2. Output (OUT): This pin provides the regulated output voltage. The voltage on this pin is determined by the feedback from the adjustable pin and external resistors.
3. Adjust (ADJ): This pin is used to set the output voltage through the use of external resistors. By varying the resistance, you can adjust the output voltage to the desired level.
The LM1085IT-ADJ/NOPB is designed to provide up to 3A of output current with a low dropout voltage, making it suitable for applications requiring moderate current and an adjustable output voltage.
1. Input (IN): This pin is where the unregulated input voltage is applied. The input voltage must be higher than the desired output voltage by a certain margin to ensure proper regulation.
2. Output (OUT): This pin provides the regulated output voltage. The voltage on this pin is determined by the feedback from the adjustable pin and external resistors.
3. Adjust (ADJ): This pin is used to set the output voltage through the use of external resistors. By varying the resistance, you can adjust the output voltage to the desired level.
The LM1085IT-ADJ/NOPB is designed to provide up to 3A of output current with a low dropout voltage, making it suitable for applications requiring moderate current and an adjustable output voltage.
Manufacturer
The LM1085IT-ADJ/NOPB is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Headquartered in Dallas, Texas, TI is one of the largest semiconductor companies in the world, known for its innovation in analog chips, embedded processors, and other electronic components. Texas Instruments serves a wide range of markets, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. The company is recognized for its extensive portfolio of products and its contribution to advancing electronics technology.
Application
The LM1085IT-ADJ/NOPB is a low-dropout (LDO) voltage regulator used in various applications requiring efficient power regulation. Key application areas include:
1. Telecommunications: Provides stable power supply for communication devices.
2. Industrial Equipment: Used in control and automation systems for consistent voltage regulation.
3. Consumer Electronics: Powers gadgets like set-top boxes and gaming consoles.
4. Networking Devices: Ensures stable operation in routers and switches.
5. Computing: Supports desktops and servers by providing clean power to critical components.
6. Power Management Systems: Used in battery-powered devices to extend battery life by minimizing power loss.
Its adjustable output voltage makes it versatile across different applications requiring precise voltage regulation.
1. Telecommunications: Provides stable power supply for communication devices.
2. Industrial Equipment: Used in control and automation systems for consistent voltage regulation.
3. Consumer Electronics: Powers gadgets like set-top boxes and gaming consoles.
4. Networking Devices: Ensures stable operation in routers and switches.
5. Computing: Supports desktops and servers by providing clean power to critical components.
6. Power Management Systems: Used in battery-powered devices to extend battery life by minimizing power loss.
Its adjustable output voltage makes it versatile across different applications requiring precise voltage regulation.
Package
The LM1085IT-ADJ/NOPB is a low dropout voltage regulator available in a TO-220 package.
