Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 29V |
| Voltage-Output(Min/Fixed) | 1.25V |
| Voltage-Output(Max) | 15V |
| VoltageDropout(Max) | 1.5V @ 3A |
| Current-Output | 3A |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 75dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
Overview
Description
The LM1085IT-ADJ is a low dropout (LDO) linear voltage regulator designed for applications requiring moderate power regulation with high efficiency. It offers an adjustable output voltage, allowing users to set the desired output level through an external resistor divider. The device typically delivers up to 3A of output current with a dropout voltage of approximately 1.5V at maximum load, making it suitable for various electronic applications, including microprocessors and digital systems.
The voltage regulator features thermal shutdown and current limiting to protect against overload and overheating conditions. It is designed to provide excellent line and load regulation, ensuring stable performance even under varying input conditions. The LM1085IT-ADJ is available in an industry-standard TO-220 package, which aids in efficient heat dissipation.
This regulator is popular for its ease of use and reliability, making it a preferred choice in both consumer electronics and industrial applications where robust voltage regulation is crucial. It is important to note that proper heat management and component selection are essential to ensure optimal performance.
The voltage regulator features thermal shutdown and current limiting to protect against overload and overheating conditions. It is designed to provide excellent line and load regulation, ensuring stable performance even under varying input conditions. The LM1085IT-ADJ is available in an industry-standard TO-220 package, which aids in efficient heat dissipation.
This regulator is popular for its ease of use and reliability, making it a preferred choice in both consumer electronics and industrial applications where robust voltage regulation is crucial. It is important to note that proper heat management and component selection are essential to ensure optimal performance.
Equivalent
The LM1085IT-ADJ is a low-dropout linear regulator. Equivalent products include the LT1085CT-ADJ, LDO regulators like the LD1085V or LD1085D2T from STMicroelectronics, and the MIC29300-5.0WT from Microchip. Always verify the electrical specifications and package compatibility before substituting to ensure they meet your circuit requirements.
Features
The LM1085IT-ADJ is a low dropout (LDO) adjustable voltage regulator. It offers several key features:
1. Adjustable Output Voltage: The output voltage can be set using external resistors, allowing for flexibility in various applications.
2. Low Dropout Voltage: It operates with a dropout voltage of approximately 1.5V at full load, which is beneficial for applications requiring a lower input-output voltage differential.
3. High Output Current: It can deliver up to 3A of output current, making it suitable for powering high-current devices.
4. Thermal Protection: The device includes thermal protection to prevent overheating, enhancing reliability.
5. Current Limiting: It features internal current limiting to protect the device from overcurrent conditions.
6. Package Options: Typically available in TO-220 and TO-263 packages, offering flexibility in thermal management and mounting.
7. Stability: Designed to be stable with low ESR capacitors, ensuring reliable operation over a range of conditions.
These features make the LM1085IT-ADJ suitable for applications requiring efficient voltage regulation with a high current capacity.
1. Adjustable Output Voltage: The output voltage can be set using external resistors, allowing for flexibility in various applications.
2. Low Dropout Voltage: It operates with a dropout voltage of approximately 1.5V at full load, which is beneficial for applications requiring a lower input-output voltage differential.
3. High Output Current: It can deliver up to 3A of output current, making it suitable for powering high-current devices.
4. Thermal Protection: The device includes thermal protection to prevent overheating, enhancing reliability.
5. Current Limiting: It features internal current limiting to protect the device from overcurrent conditions.
6. Package Options: Typically available in TO-220 and TO-263 packages, offering flexibility in thermal management and mounting.
7. Stability: Designed to be stable with low ESR capacitors, ensuring reliable operation over a range of conditions.
These features make the LM1085IT-ADJ suitable for applications requiring efficient voltage regulation with a high current capacity.
Pinout
The LM1085IT-ADJ is a low dropout voltage regulator with an adjustable output. It comes in a TO-220 package and typically has three pins:
1. Input (VIN): This pin receives the unregulated input voltage.
2. Output (VOUT): This pin provides the regulated output voltage.
3. Adjust (ADJ): This pin is used to set the desired output voltage. By connecting a resistor divider between the output, adjust pin, and ground, users can adjust the output voltage to the required level.
The LM1085IT-ADJ can provide up to 3A of output current with a dropout voltage typically around 1.3V at maximum load. It is well-suited for applications requiring stable and adjustable voltage regulation.
1. Input (VIN): This pin receives the unregulated input voltage.
2. Output (VOUT): This pin provides the regulated output voltage.
3. Adjust (ADJ): This pin is used to set the desired output voltage. By connecting a resistor divider between the output, adjust pin, and ground, users can adjust the output voltage to the required level.
The LM1085IT-ADJ can provide up to 3A of output current with a dropout voltage typically around 1.3V at maximum load. It is well-suited for applications requiring stable and adjustable voltage regulation.
Manufacturer
The manufacturer of the LM1085IT-ADJ is 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. The company is known for its innovation in analog chips and embedded processors, playing a significant role in everything from personal electronics to automotive and industrial systems. TI is headquartered in Dallas, Texas, and is one of the largest semiconductor companies in the world, focusing on developing components that improve various electronic systems' performance and efficiency.
Application
The LM1085IT-ADJ is a low-dropout voltage regulator used in various applications that require efficient voltage regulation with minimal voltage loss. Its applications include:
1. Power Supply Design: Provides stable voltage outputs in power supply circuits for electronic devices.
2. Telecommunications: Used in telecom equipment to maintain stable power for signal processing.
3. Industrial Equipment: Ensures reliable power management in industrial control systems.
4. Consumer Electronics: Powers and protects various consumer gadgets.
5. Computer Hardware: Regulates voltage in computer components like motherboards and graphics cards.
6. Networking Devices: Supports routers and switches with stable power supply.
Its adjustable output is suitable for systems requiring precise voltage levels.
1. Power Supply Design: Provides stable voltage outputs in power supply circuits for electronic devices.
2. Telecommunications: Used in telecom equipment to maintain stable power for signal processing.
3. Industrial Equipment: Ensures reliable power management in industrial control systems.
4. Consumer Electronics: Powers and protects various consumer gadgets.
5. Computer Hardware: Regulates voltage in computer components like motherboards and graphics cards.
6. Networking Devices: Supports routers and switches with stable power supply.
Its adjustable output is suitable for systems requiring precise voltage levels.
Package
The LM1085IT-ADJ is typically available in a TO-220 package type. This package is a through-hole type with three leads, providing efficient heat dissipation suitable for the LM1085 voltage regulator's thermal requirements.
