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LM317T-DG
+Lista de MateriaisIC REG LINEAR POS ADJ 1.5A TO220
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FabricanteSTMicroeletrônica
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Peça do Fabricante #LM317T-DG
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Ficha Técnica LM317T-DG DataSheet
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Especificações
| Atributo | Valor |
| PartStatus | Active |
| BaseProductNumber | LM317 |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.2V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1.5A |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Through Hole |
| Package | TO-220-3 |
| SupplierDevicePackage | TO-220 |
| Packaging | Tube |
Visão Geral
Description
The LM317T-DG is a popular adjustable voltage regulator used in electronic circuits to provide a stable output voltage. It is a versatile component capable of delivering output voltages ranging from 1.25V to 37V with an input-output voltage difference of at least 3V. The device can supply up to 1.5A of current to the load. Its adjustable nature is achieved through the use of two external resistors that set the output voltage to a desired level.
Key features of the LM317T-DG include its capability to provide thermal overload protection, short-circuit protection, and safe area protection, making it robust and reliable for various applications. The regulator is housed in a TO-220 package, which aids in heat dissipation through the attached heat sink.
LM317T-DG is commonly used in power supplies, battery chargers, and other applications where precise voltage regulation is required. Its straightforward implementation, reliability, and versatility have made it a staple in both amateur and professional electronics projects.
Key features of the LM317T-DG include its capability to provide thermal overload protection, short-circuit protection, and safe area protection, making it robust and reliable for various applications. The regulator is housed in a TO-220 package, which aids in heat dissipation through the attached heat sink.
LM317T-DG is commonly used in power supplies, battery chargers, and other applications where precise voltage regulation is required. Its straightforward implementation, reliability, and versatility have made it a staple in both amateur and professional electronics projects.
Equivalent
The LM317T-DG is a voltage regulator, and some equivalent products include:
1. L7805CV
2. MC7805CT
3. UA7805CK
4. NTE960
5. KA7805
These are all adjustable voltage regulators similar to the LM317T-DG, though specifications might vary slightly. Ensure to check the datasheets for compatibility in your specific application.
1. L7805CV
2. MC7805CT
3. UA7805CK
4. NTE960
5. KA7805
These are all adjustable voltage regulators similar to the LM317T-DG, though specifications might vary slightly. Ensure to check the datasheets for compatibility in your specific application.
Features
The LM317T-DG is a versatile, adjustable voltage regulator known for its ease of use and reliability. Key features include:
1. Output Voltage Range: It offers an output voltage range from 1.25V to 37V, allowing for a wide range of applications.
2. Output Current: It can deliver an output current of up to 1.5A, suitable for most moderate power applications.
3. Line Regulation: The device features excellent line regulation, typically 0.01% per volt.
4. Load Regulation: It provides good load regulation, usually around 0.1%.
5. Thermal Overload Protection: The LM317T-DG includes built-in thermal overload protection to prevent damage from overheating.
6. Current Limiting: It has internal short-circuit current limiting, ensuring safety against overloads.
7. Safe Area Compensation: The regulator is designed with safe area protection to prevent excessive power dissipation.
8. Package: It comes in a TO-220 package, which is convenient for heat dissipation.
9. Adjustable Output: The output voltage can be set using two external resistors, offering flexibility in output settings.
These features make the LM317T-DG ideal for use in a wide range of electronic projects and applications, including power supplies and battery chargers.
1. Output Voltage Range: It offers an output voltage range from 1.25V to 37V, allowing for a wide range of applications.
2. Output Current: It can deliver an output current of up to 1.5A, suitable for most moderate power applications.
3. Line Regulation: The device features excellent line regulation, typically 0.01% per volt.
4. Load Regulation: It provides good load regulation, usually around 0.1%.
5. Thermal Overload Protection: The LM317T-DG includes built-in thermal overload protection to prevent damage from overheating.
6. Current Limiting: It has internal short-circuit current limiting, ensuring safety against overloads.
7. Safe Area Compensation: The regulator is designed with safe area protection to prevent excessive power dissipation.
8. Package: It comes in a TO-220 package, which is convenient for heat dissipation.
9. Adjustable Output: The output voltage can be set using two external resistors, offering flexibility in output settings.
These features make the LM317T-DG ideal for use in a wide range of electronic projects and applications, including power supplies and battery chargers.
Pinout
The LM317T-DG is a three-terminal adjustable voltage regulator. It has a pin count of three, with each pin serving a specific function:
1. Input (Vin): This is where the unregulated input voltage is applied. The regulator can take a wide range of input voltages, typically between 3V to 40V, and outputs a stable voltage.
2. Output (Vout): This pin provides the regulated output voltage, which can be adjusted between 1.25V to 37V using a pair of external resistors connected to the Adjust pin.
3. Adjust (Adj): This pin is used to set the output voltage. By connecting external resistors between the Adjust pin and the Output pin, and from the Adjust pin to ground, you can determine the precise output voltage based on the voltage divider formula.
The LM317T-DG is widely used for its versatility and ease of use in applications requiring a stable and adjustable power supply.
1. Input (Vin): This is where the unregulated input voltage is applied. The regulator can take a wide range of input voltages, typically between 3V to 40V, and outputs a stable voltage.
2. Output (Vout): This pin provides the regulated output voltage, which can be adjusted between 1.25V to 37V using a pair of external resistors connected to the Adjust pin.
3. Adjust (Adj): This pin is used to set the output voltage. By connecting external resistors between the Adjust pin and the Output pin, and from the Adjust pin to ground, you can determine the precise output voltage based on the voltage divider formula.
The LM317T-DG is widely used for its versatility and ease of use in applications requiring a stable and adjustable power supply.
Manufacturer
The LM317T-DG is a linear voltage regulator, and it is manufactured by ON Semiconductor, which is now known as onsemi. onsemi is a semiconductor manufacturing company that provides a wide variety of products, including power and signal management, logic, discrete, and custom devices for various applications. The company focuses on automotive, industrial, and communications sectors, offering energy-efficient solutions for power and signal management, automotive electronics, and more. onsemi is known for its innovation in semiconductor technology and plays a significant role in providing advanced solutions for sustainable energy and efficient electronic systems.
Application
The LM317T-DG is a versatile voltage regulator used in various applications. It is commonly employed in power supply circuits to provide a stable output voltage, making it ideal for battery chargers, adjustable power supplies, and voltage regulation in electronic devices. Additionally, it is used in current regulation circuits for driving LEDs and other components requiring constant current. The LM317T-DG can also be found in audio equipment for power management and voltage stabilization. Its ability to adjust output voltage with external resistors makes it suitable for a wide range of applications where variable voltage or current is necessary.
Package
The LM317T-DG is a voltage regulator in a TO-220 package. It is commonly used in electronic applications to provide adjustable output voltage. The TO-220 package features three pins and a metal tab for mounting and heat dissipation.
