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LM317KTTR
IC REG LIN POS ADJ 1.5A DDPAK
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- 製造商。 部分 #LM317KTTR
- 包 TO-263 (KTT)-3
- 資料表 LM317KTTR DataSheet
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.25V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1.5A |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
概述
Description
The LM317KTTR is a popular adjustable voltage regulator integrated circuit, often used in electronic projects for providing a stable output voltage from a higher input voltage. It is part of the LM317 series, known for its versatility and reliability. The "KTTR" suffix typically indicates a specific package type and version suitable for surface-mount applications.
This voltage regulator can output voltages ranging from 1.25V to 37V, with a maximum output current of 1.5A, making it suitable for a wide range of applications. The output voltage is set using two external resistors, allowing for easy customization. It features internal current limiting, thermal overload protection, and safe area compensation, which enhance its durability and performance under various conditions.
The LM317KTTR is commonly used in power supply circuits, battery chargers, and other applications requiring precise voltage regulation. Its simplicity and effectiveness make it a staple component for both hobbyists and professionals in the electronics industry.
This voltage regulator can output voltages ranging from 1.25V to 37V, with a maximum output current of 1.5A, making it suitable for a wide range of applications. The output voltage is set using two external resistors, allowing for easy customization. It features internal current limiting, thermal overload protection, and safe area compensation, which enhance its durability and performance under various conditions.
The LM317KTTR is commonly used in power supply circuits, battery chargers, and other applications requiring precise voltage regulation. Its simplicity and effectiveness make it a staple component for both hobbyists and professionals in the electronics industry.
Features
The LM317KTTR is a versatile adjustable voltage regulator with the following key features:
1. Output Voltage Range: It provides an adjustable output voltage from 1.25V to 37V, allowing for broad application use.
2. Output Current: Capable of delivering up to 1.5A of load current.
3. Thermal Overload Protection: Includes built-in protection to prevent damage from excessive heat.
4. Short-Circuit Protection: Features current limiting to protect against short-circuit conditions.
5. Safe Area Protection: Ensures the regulator operates within safe limits, even under adverse conditions.
6. Line and Load Regulation: Offers excellent line and load regulation capabilities.
7. Package: Typically available in a TO-220 package, which provides effective heat dissipation.
8. Applications: Commonly used in power supplies, battery chargers, and adjustable power systems due to its reliability and flexibility.
These features make the LM317KTTR an ideal choice for applications requiring a stable and adjustable output voltage with robust protection mechanisms.
1. Output Voltage Range: It provides an adjustable output voltage from 1.25V to 37V, allowing for broad application use.
2. Output Current: Capable of delivering up to 1.5A of load current.
3. Thermal Overload Protection: Includes built-in protection to prevent damage from excessive heat.
4. Short-Circuit Protection: Features current limiting to protect against short-circuit conditions.
5. Safe Area Protection: Ensures the regulator operates within safe limits, even under adverse conditions.
6. Line and Load Regulation: Offers excellent line and load regulation capabilities.
7. Package: Typically available in a TO-220 package, which provides effective heat dissipation.
8. Applications: Commonly used in power supplies, battery chargers, and adjustable power systems due to its reliability and flexibility.
These features make the LM317KTTR an ideal choice for applications requiring a stable and adjustable output voltage with robust protection mechanisms.
Package
The LM317KTTR is a voltage regulator typically available in a surface-mount package, specifically the TO-263 (D2PAK) style. This package type allows for efficient heat dissipation and is suitable for use in automated assembly processes.
Pinout
The LM317KTTR is a variant of the LM317 voltage regulator, typically packaged in a TO-220 or TO-263. It is a 3-terminal adjustable voltage regulator that can provide an output voltage ranging from 1.25V to 37V, adjustable through external resistors. The three pins are:
1. Input (Pin 1): The pin where the input voltage is applied. It must be at least 3V higher than the desired output voltage.
2. Output (Pin 2): The pin where the regulated output voltage is obtained. This is connected to the load requiring the regulated voltage.
3. Adjust (Pin 3): This pin is used to adjust the output voltage. By connecting it with two external resistors, you can set the desired output voltage level.
The LM317 offers features like thermal overload protection, current limiting, and safe area compensation, making it a versatile choice for various voltage regulation applications.
1. Input (Pin 1): The pin where the input voltage is applied. It must be at least 3V higher than the desired output voltage.
2. Output (Pin 2): The pin where the regulated output voltage is obtained. This is connected to the load requiring the regulated voltage.
3. Adjust (Pin 3): This pin is used to adjust the output voltage. By connecting it with two external resistors, you can set the desired output voltage level.
The LM317 offers features like thermal overload protection, current limiting, and safe area compensation, making it a versatile choice for various voltage regulation applications.
Manufacturer
The LM317KTTR is manufactured by Texas Instruments, an American technology company known for designing and manufacturing semiconductors and various integrated circuits. Texas Instruments is a global leader in the semiconductor industry and supplies a wide range of products, including analog chips and embedded processors, to a variety of industries such as automotive, industrial, personal electronics, and communications equipment. The LM317KTTR is a voltage regulator, specifically an adjustable linear voltage regulator, which is commonly used in electronic circuits for maintaining a stable output voltage.
Application
The LM317KTTR is a versatile adjustable voltage regulator used in various applications. It is commonly employed in power supply circuits to provide stable output voltages ranging from 1.25V to 37V. Key application areas include battery chargers, adjustable power supplies, LED drivers, and voltage regulation for microcontrollers and other electronic components. Its ability to handle a wide range of input voltages and deliver up to 1.5A of output current makes it suitable for both consumer electronics and industrial applications.
Equivalent
Equivalent products to the LM317KTTR voltage regulator include:
1. LM317T
2. L78S12CT
3. UA7812CKTTR
4. LM317LZ
5. NTE956
6. KA317
These alternatives offer similar functionality, typically providing adjustable output voltage regulation. Always check the datasheets to verify compatibility in terms of package type, output current, and thermal characteristics.
1. LM317T
2. L78S12CT
3. UA7812CKTTR
4. LM317LZ
5. NTE956
6. KA317
These alternatives offer similar functionality, typically providing adjustable output voltage regulation. Always check the datasheets to verify compatibility in terms of package type, output current, and thermal characteristics.
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