Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| ProductStatus | Active |
| 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 | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |
Overview
Description
The LM317BD2TG is a versatile, adjustable voltage regulator commonly used in electronic projects and power supply designs. It is part of the LM317 series, which is known for its reliability and ease of use. This device can supply an output voltage that is adjustable between 1.25V to 37V, with a maximum output current of 1.5A, making it suitable for a wide range of applications.
The LM317BD2TG comes in a D2PAK surface-mount package, providing efficient thermal performance and saving space on the PCB. Its key features include thermal overload protection, short-circuit protection, and safe area compensation, which enhance its durability and reliability in various conditions.
Its simplicity is one of its biggest advantages; by connecting only a pair of external resistors, you can set the output voltage to the desired level. This flexibility makes it an ideal choice for custom power supply needs in both industrial and consumer electronics projects.
The LM317BD2TG comes in a D2PAK surface-mount package, providing efficient thermal performance and saving space on the PCB. Its key features include thermal overload protection, short-circuit protection, and safe area compensation, which enhance its durability and reliability in various conditions.
Its simplicity is one of its biggest advantages; by connecting only a pair of external resistors, you can set the output voltage to the desired level. This flexibility makes it an ideal choice for custom power supply needs in both industrial and consumer electronics projects.
Equivalent
Equivalent products to the LM317BD2TG adjustable voltage regulator include the LM317 from various manufacturers such as Texas Instruments, STMicroelectronics, and Fairchild Semiconductor. Other equivalents include the NCP1117 from ON Semiconductor and the TL317 from Texas Instruments. These alternatives provide similar functionality with adjustable output voltage and current regulation. Always check the datasheets for compatibility in terms of voltage, current, and package type.
Features
The LM317BD2TG is a versatile adjustable voltage regulator with the following key features:
1. Output Voltage Range: Adjustable from 1.2V to 37V depending on external resistors.
2. Output Current: Provides up to 1.5A of current.
3. Line Regulation: Typically 0.01% per volt.
4. Load Regulation: Typically 0.1% for optimum performance.
5. Thermal Overload Protection: Includes built-in protection to prevent overheating.
6. Short Circuit Protection: Safeguards the device against damage from output short circuits.
7. Safe Area Protection: Ensures the device operates safely under various conditions.
8. Package: Available in D2PAK surface-mount package for efficient heat dissipation.
9. Temperature Range: Operates effectively between -40°C and +125°C.
10. Dropout Voltage: Low dropout voltage of approximately 3V.
11. Adjustable: Allows for custom configurations for various applications.
These features make the LM317BD2TG suitable for a range of applications requiring stable and adjustable voltage regulation.
1. Output Voltage Range: Adjustable from 1.2V to 37V depending on external resistors.
2. Output Current: Provides up to 1.5A of current.
3. Line Regulation: Typically 0.01% per volt.
4. Load Regulation: Typically 0.1% for optimum performance.
5. Thermal Overload Protection: Includes built-in protection to prevent overheating.
6. Short Circuit Protection: Safeguards the device against damage from output short circuits.
7. Safe Area Protection: Ensures the device operates safely under various conditions.
8. Package: Available in D2PAK surface-mount package for efficient heat dissipation.
9. Temperature Range: Operates effectively between -40°C and +125°C.
10. Dropout Voltage: Low dropout voltage of approximately 3V.
11. Adjustable: Allows for custom configurations for various applications.
These features make the LM317BD2TG suitable for a range of applications requiring stable and adjustable voltage regulation.
Pinout
The LM317BD2TG is a three-terminal adjustable voltage regulator with a pin count of three. The pins are typically labeled as follows:
1. Input (IN): This pin receives the input voltage. The regulator can handle an input voltage higher than the desired output voltage.
2. Output (OUT): This pin provides the regulated output voltage, which can be adjusted from 1.25V to 37V using external resistors.
3. Adjustment (ADJ): This pin is used to set the output voltage. By connecting a resistor between the output and the adjustment pin, and another resistor from the adjustment pin to ground, the output voltage can be programmed.
The LM317BD2TG is commonly used for applications requiring a stable and adjustable power supply. It offers features like current limiting, thermal overload protection, and safe operating area protection.
1. Input (IN): This pin receives the input voltage. The regulator can handle an input voltage higher than the desired output voltage.
2. Output (OUT): This pin provides the regulated output voltage, which can be adjusted from 1.25V to 37V using external resistors.
3. Adjustment (ADJ): This pin is used to set the output voltage. By connecting a resistor between the output and the adjustment pin, and another resistor from the adjustment pin to ground, the output voltage can be programmed.
The LM317BD2TG is commonly used for applications requiring a stable and adjustable power supply. It offers features like current limiting, thermal overload protection, and safe operating area protection.
Manufacturer
The LM317BD2TG is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a global company based in the United States that specializes in the design and manufacture of semiconductor components. The company provides a wide range of products, including power management solutions, analog devices, sensors, logic, timing, connectivity, discrete, SoCs, and custom devices. Onsemi serves various markets, including automotive, industrial, communications, computing, and consumer electronics. It is known for its focus on energy-efficient solutions and plays a significant role in the development of sustainable technologies.
Application
The LM317BD2TG is a versatile adjustable voltage regulator used in various applications, including:
1. Power Supply Regulation: Provides stable voltage for electronic devices and circuits.
2. Battery Chargers: Ensures consistent charging by adjusting output voltage.
3. LED Drivers: Regulates current to maintain consistent LED brightness.
4. Embedded Systems: Supplies regulated power for microcontrollers and sensors.
5. Test Equipment: Delivers precise voltage for testing and measurement devices.
6. Communication Devices: Powers RF circuits and networking equipment.
7. Consumer Electronics: Used in audio amplifiers and other home electronics requiring stable voltage.
Its ability to adjust output voltage makes it suitable for a wide range of applications.
1. Power Supply Regulation: Provides stable voltage for electronic devices and circuits.
2. Battery Chargers: Ensures consistent charging by adjusting output voltage.
3. LED Drivers: Regulates current to maintain consistent LED brightness.
4. Embedded Systems: Supplies regulated power for microcontrollers and sensors.
5. Test Equipment: Delivers precise voltage for testing and measurement devices.
6. Communication Devices: Powers RF circuits and networking equipment.
7. Consumer Electronics: Used in audio amplifiers and other home electronics requiring stable voltage.
Its ability to adjust output voltage makes it suitable for a wide range of applications.
Package
The LM317BD2TG is a voltage regulator IC typically packaged in a D2PAK (TO-263) surface-mount package. This package type facilitates efficient thermal management and is suitable for applications requiring a compact design with reliable performance.
