사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.25V |
| 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 | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
개요
Description
The LM317AMDTX is a versatile, adjustable voltage regulator designed to provide a stable output voltage ranging from 1.25V to 37V with a current output capability of up to 1.5A. It is commonly used in power supply applications due to its ease of use and reliability. The device features internal current limiting, thermal overload protection, and safe area compensation, making it robust against overload conditions. The LM317AMDTX can be used with a minimal number of external components, typically requiring only two resistors to set the output voltage. Its TO-252 package allows for efficient heat dissipation. The regulator is suitable for a wide range of applications, including battery chargers, constant-current regulators, and adjustable power supplies. The LM317AMDTX is favored for its precision, durability, and cost-effectiveness in both consumer electronics and industrial settings.
Equivalent
The LM317AMDTX is a voltage regulator that can be replaced by several equivalent products. Some alternatives include the LM317T, LM317AT, LM317L, and LM317M, all of which are general-purpose adjustable regulators. Additionally, other manufacturers offer compatible products such as the NTE956 from NTE Electronics, TL783 from Texas Instruments, and UA7805 from Fairchild. Ensure the specifications, such as current and voltage ratings, match your requirements when selecting an equivalent.
Features
The LM317AMDTX is an adjustable voltage regulator with the following key features:
1. Output Voltage Range: It can supply an output voltage range of 1.25V to 37V, making it versatile for various applications.
2. Output Current: Capable of delivering up to 1.5A of current, suitable for medium-power applications.
3. Line Regulation: Offers excellent line regulation, typically 0.01%/V, ensuring stable output despite input voltage variations.
4. Load Regulation: Provides good load regulation, typically 0.1%, maintaining output stability under changing loads.
5. Thermal Overload Protection: Includes built-in protection against overheating, enhancing reliability and preventing damage.
6. Current Limiting: Features current limiting to prevent excessive current draw, protecting both the regulator and connected components.
7. Safe Operating Area (SOA) Protection: Ensures safe operation by maintaining the device within its specified limits.
8. Package Options: Available in various packages, such as TO-252 (DPAK), for compatibility with different circuit designs.
9. Temperature Range: Designed to operate over a wide temperature range, typically from -40°C to 125°C, suitable for industrial applications.
These features make the LM317AMDTX a robust and flexible choice for voltage regulation needs.
1. Output Voltage Range: It can supply an output voltage range of 1.25V to 37V, making it versatile for various applications.
2. Output Current: Capable of delivering up to 1.5A of current, suitable for medium-power applications.
3. Line Regulation: Offers excellent line regulation, typically 0.01%/V, ensuring stable output despite input voltage variations.
4. Load Regulation: Provides good load regulation, typically 0.1%, maintaining output stability under changing loads.
5. Thermal Overload Protection: Includes built-in protection against overheating, enhancing reliability and preventing damage.
6. Current Limiting: Features current limiting to prevent excessive current draw, protecting both the regulator and connected components.
7. Safe Operating Area (SOA) Protection: Ensures safe operation by maintaining the device within its specified limits.
8. Package Options: Available in various packages, such as TO-252 (DPAK), for compatibility with different circuit designs.
9. Temperature Range: Designed to operate over a wide temperature range, typically from -40°C to 125°C, suitable for industrial applications.
These features make the LM317AMDTX a robust and flexible choice for voltage regulation needs.
Pinout
The LM317AMDTX is a voltage regulator integrated circuit commonly used for adjustable linear voltage regulation. It typically comes in a TO-252 package and has three pins. The pin configuration and functions are as follows:
1. Input (Vin): This is the pin where the unregulated input voltage is supplied. It should be higher than the desired output voltage to ensure proper regulation.
2. Output (Vout): This pin provides the regulated output voltage. The output voltage is adjustable and can be set using external resistors.
3. Adjustment (Adj): This pin is used to adjust the output voltage. By connecting a resistor divider between the output and the adjustment pin, the output voltage can be set to the desired level.
The LM317AMDTX can provide an output voltage range of 1.25V to 37V, depending on the input voltage and external resistor configuration. It is capable of delivering output current up to 1.5A.
1. Input (Vin): This is the pin where the unregulated input voltage is supplied. It should be higher than the desired output voltage to ensure proper regulation.
2. Output (Vout): This pin provides the regulated output voltage. The output voltage is adjustable and can be set using external resistors.
3. Adjustment (Adj): This pin is used to adjust the output voltage. By connecting a resistor divider between the output and the adjustment pin, the output voltage can be set to the desired level.
The LM317AMDTX can provide an output voltage range of 1.25V to 37V, depending on the input voltage and external resistor configuration. It is capable of delivering output current up to 1.5A.
Manufacturer
The LM317AMDTX is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. They are widely recognized as one of the largest producers of analog technology components and embedded processors. Texas Instruments serves a broad array of industries, including automotive, industrial, consumer electronics, communication equipment, and enterprise systems. The company is known for its innovation in electronic design and engineering, and its products are integral in the development of many modern electronic devices.
Application
The LM317AMDTX is a versatile adjustable voltage regulator used in various applications. Common areas include:
1. Power Supply Design: Used in creating adjustable power supplies for electronic devices.
2. Battery Chargers: Facilitates controlled charging by adjusting output voltage.
3. Embedded Systems: Provides stable voltage regulation for microcontrollers and sensors.
4. LED Drivers: Used to drive LEDs by providing a constant current.
5. Test Equipment: Enables variable voltage outputs for testing components and circuits.
6. Communication Devices: Provides reliable power regulation in telecommunications equipment.
Its ability to adjust output voltage makes it suitable for applications that require precise voltage control.
1. Power Supply Design: Used in creating adjustable power supplies for electronic devices.
2. Battery Chargers: Facilitates controlled charging by adjusting output voltage.
3. Embedded Systems: Provides stable voltage regulation for microcontrollers and sensors.
4. LED Drivers: Used to drive LEDs by providing a constant current.
5. Test Equipment: Enables variable voltage outputs for testing components and circuits.
6. Communication Devices: Provides reliable power regulation in telecommunications equipment.
Its ability to adjust output voltage makes it suitable for applications that require precise voltage control.
Package
The LM317AMDTX is a voltage regulator packaged in a DPAK (TO-252) surface-mount package type. It is designed for applications requiring a fixed output voltage, commonly used for voltage regulation in electronic circuits.
