規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.2V |
| Voltage-Output(Max) | 37V |
| Current-Output | 500mA |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
概述
Description
The LM317MDTRKG is a popular adjustable voltage regulator used in a variety of electronic applications for regulating and outputting a stable voltage. It is part of the LM317 series, which is known for its versatility and ease of use. The device is capable of outputting a voltage range from 1.25V to 37V, depending on the external resistors used, and can deliver output currents up to 1.5A.
This regulator is packaged in a compact, surface-mount DPAK package, making it suitable for applications with limited space. It features internal current limiting, thermal overload protection, and safe area compensation, which enhance its reliability and safety in operation. These features allow the LM317MDTRKG to maintain performance even under varying loads and temperatures.
Common applications include power supplies, battery chargers, and adjustable power adapters. The LM317MDTRKG is favored for its precision, robustness, and ease of implementation in both hobbyist and professional projects.
This regulator is packaged in a compact, surface-mount DPAK package, making it suitable for applications with limited space. It features internal current limiting, thermal overload protection, and safe area compensation, which enhance its reliability and safety in operation. These features allow the LM317MDTRKG to maintain performance even under varying loads and temperatures.
Common applications include power supplies, battery chargers, and adjustable power adapters. The LM317MDTRKG is favored for its precision, robustness, and ease of implementation in both hobbyist and professional projects.
Equivalent
The LM317MDTRKG is a voltage regulator from ON Semiconductor. Equivalent products include:
1. LM317T from Texas Instruments
2. L78xx series from STMicroelectronics (for fixed output voltages)
3. LT1086 from Analog Devices
4. MC7805 and similar series from ON Semiconductor (for specific fixed outputs)
5. NTE956 from NTE Electronics
Ensure to verify the specifications and pin configurations when selecting a replacement.
1. LM317T from Texas Instruments
2. L78xx series from STMicroelectronics (for fixed output voltages)
3. LT1086 from Analog Devices
4. MC7805 and similar series from ON Semiconductor (for specific fixed outputs)
5. NTE956 from NTE Electronics
Ensure to verify the specifications and pin configurations when selecting a replacement.
Features
The LM317MDTRKG is a versatile adjustable voltage regulator that offers the following features:
1. Adjustable Output Voltage: It provides an output voltage range from 1.25V to 37V, adjustable through two external resistors.
2. Output Current: Capable of delivering up to 500 mA output current with proper heat sinking.
3. Thermal Regulation: Includes built-in protection against overheating, ensuring reliable operation under varying thermal conditions.
4. Overcurrent Protection: Incorporates current limiting to protect against excessive load currents.
5. Line and Load Regulation: Offers excellent line and load regulation characteristics, ensuring stable performance even with input voltage changes or varying load conditions.
6. Dropout Voltage: Features a low dropout voltage, typically around 3V, for efficient operation.
7. Package: Available in a surface-mount DPAK package, which is SMD-friendly, allowing for compact PCB design.
8. Application: Suitable for a wide range of applications, including power supplies, battery chargers, and adjustable power adapters.
These features make the LM317MDTRKG a reliable choice for precision voltage regulation in various electronic applications.
1. Adjustable Output Voltage: It provides an output voltage range from 1.25V to 37V, adjustable through two external resistors.
2. Output Current: Capable of delivering up to 500 mA output current with proper heat sinking.
3. Thermal Regulation: Includes built-in protection against overheating, ensuring reliable operation under varying thermal conditions.
4. Overcurrent Protection: Incorporates current limiting to protect against excessive load currents.
5. Line and Load Regulation: Offers excellent line and load regulation characteristics, ensuring stable performance even with input voltage changes or varying load conditions.
6. Dropout Voltage: Features a low dropout voltage, typically around 3V, for efficient operation.
7. Package: Available in a surface-mount DPAK package, which is SMD-friendly, allowing for compact PCB design.
8. Application: Suitable for a wide range of applications, including power supplies, battery chargers, and adjustable power adapters.
These features make the LM317MDTRKG a reliable choice for precision voltage regulation in various electronic applications.
Pinout
The LM317MDTRKG is a voltage regulator with a variable output voltage. It typically comes in a DPAK surface-mount package with 3 pins. The pin functions are as follows:
1. Input (Vin): This pin is where the unregulated input voltage is supplied. The regulator steps down this voltage to a desired level.
2. Output (Vout): This pin provides the regulated output voltage, which can be adjusted to a desired level by using external resistors.
3. Adjust (Adj): This pin is used to set the output voltage by connecting external resistors to form a voltage divider network.
The LM317 can provide an output voltage range from 1.25V to 37V, depending on the input voltage and the configuration of the external resistors.
1. Input (Vin): This pin is where the unregulated input voltage is supplied. The regulator steps down this voltage to a desired level.
2. Output (Vout): This pin provides the regulated output voltage, which can be adjusted to a desired level by using external resistors.
3. Adjust (Adj): This pin is used to set the output voltage by connecting external resistors to form a voltage divider network.
The LM317 can provide an output voltage range from 1.25V to 37V, depending on the input voltage and the configuration of the external resistors.
Manufacturer
The LM317MDTRKG is manufactured by ON Semiconductor. ON Semiconductor, now known as onsemi, is a leading supplier of semiconductor-based solutions. The company designs and manufactures a wide range of products including power and signal management, logic, discrete, and custom devices for various applications. These include automotive, communications, computing, consumer electronics, industrial, LED lighting, medical, military/aerospace, and power applications. onsemi focuses on energy-efficient solutions and innovations that contribute to sustainable and efficient electronics.
Application
The LM317MDTRKG is a voltage regulator commonly used in applications requiring adjustable voltage regulation. It is suitable for power supply circuits, where it provides a stable output voltage across varying load conditions. This component is often employed in battery chargers, LED drivers, and embedded systems to ensure consistent voltage levels. Additionally, it is used in communication equipment and consumer electronics where precise voltage control is necessary. Its versatility and adjustability make it a popular choice for prototypes and custom electronics projects, as it can supply a wide range of output voltages by adjusting external resistors.
Package
The LM317MDTRKG is a voltage regulator packaged in a DPAK (TO-252) surface-mount package. This package type allows for efficient heat dissipation and is suitable for applications requiring a compact footprint while managing moderate power levels.
