사양
| 속성 | 가치 |
| 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 | 100mA |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 80dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
개요
Description
The LM317LDR2G is a low-voltage adjustable voltage regulator designed for a variety of applications requiring a regulated output voltage. It is part of the LM317 series and offers a high level of performance and flexibility, capable of supplying more than 100mA of load current. The device allows for output voltage adjustments from 1.2V to 37V, depending on the external resistors used.
Key features include line and load regulation, internal current limiting, thermal overload protection, and safe area compensation, making it reliable and robust for different operating conditions. It is especially useful in scenarios where a fixed voltage is insufficient, and a precise voltage is necessary.
Housed in a compact package, the LM317LDR2G is suitable for a range of applications such as power supply units, battery chargers, and adjustable power supplies. Its simplicity and efficiency make it a popular choice among electronics designers and engineers for both consumer and industrial devices.
Key features include line and load regulation, internal current limiting, thermal overload protection, and safe area compensation, making it reliable and robust for different operating conditions. It is especially useful in scenarios where a fixed voltage is insufficient, and a precise voltage is necessary.
Housed in a compact package, the LM317LDR2G is suitable for a range of applications such as power supply units, battery chargers, and adjustable power supplies. Its simplicity and efficiency make it a popular choice among electronics designers and engineers for both consumer and industrial devices.
Equivalent
The LM317LDR2G is a low-power adjustable voltage regulator. Equivalent products include:
1. LM317L - Any variant of the LM317L series from manufacturers like STMicroelectronics, Texas Instruments, or ON Semiconductor.
2. L78L series - Such as the L78L05, L78L12, and L78L15 from STMicroelectronics.
3. MIC29150 series - Low-dropout regulators with similar specifications.
4. TS317 - From STMicroelectronics, another adjustable voltage regulator.
These alternatives offer similar functionality but may have different package types or electrical characteristics.
1. LM317L - Any variant of the LM317L series from manufacturers like STMicroelectronics, Texas Instruments, or ON Semiconductor.
2. L78L series - Such as the L78L05, L78L12, and L78L15 from STMicroelectronics.
3. MIC29150 series - Low-dropout regulators with similar specifications.
4. TS317 - From STMicroelectronics, another adjustable voltage regulator.
These alternatives offer similar functionality but may have different package types or electrical characteristics.
Features
The LM317LDR2G is a versatile and widely used adjustable voltage regulator. Key features include:
1. Output Voltage Range: It can adjust the output voltage from 1.2V to 37V, making it suitable for a variety of applications.
2. Output Current: It supplies a current up to 100 mA.
3. Line Regulation: This device offers good line regulation with changes in input voltage.
4. Load Regulation: Provides stable output voltage despite variations in load current.
5. Thermal Overload Protection: The device includes thermal overload protection to prevent damage from overheating.
6. Short-Circuit Protection: It features a current limiting mechanism that protects against short circuits.
7. Input-Output Differential: The minimum differential voltage between input and output is 3V.
8. Package: Typically available in a TO-92 or SOT-223 package for ease of use in various designs.
These features make the LM317LDR2G suitable for applications needing a stable and adjustable power supply.
1. Output Voltage Range: It can adjust the output voltage from 1.2V to 37V, making it suitable for a variety of applications.
2. Output Current: It supplies a current up to 100 mA.
3. Line Regulation: This device offers good line regulation with changes in input voltage.
4. Load Regulation: Provides stable output voltage despite variations in load current.
5. Thermal Overload Protection: The device includes thermal overload protection to prevent damage from overheating.
6. Short-Circuit Protection: It features a current limiting mechanism that protects against short circuits.
7. Input-Output Differential: The minimum differential voltage between input and output is 3V.
8. Package: Typically available in a TO-92 or SOT-223 package for ease of use in various designs.
These features make the LM317LDR2G suitable for applications needing a stable and adjustable power supply.
Pinout
The LM317LDR2G is a three-pin adjustable voltage regulator. It is designed to provide a stable voltage output that can be adjusted between 1.25V and 37V, with a current output capability of up to 100 mA. The three pins are typically labeled as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the desired output voltage by a certain margin to allow regulation.
2. Output (Vout): This pin delivers the regulated output voltage, which is set using external resistors connected to the adjustment pin.
3. Adjust (Adj): By connecting resistors between this pin and the output and ground, you can set the output voltage to your desired level.
The LM317LDR2G is commonly used in applications where a stable voltage is required, such as battery chargers, LED drivers, and other power supply circuits. It provides features like thermal overload protection and short-circuit protection.
1. Input (Vin): This pin receives the input voltage, which should be higher than the desired output voltage by a certain margin to allow regulation.
2. Output (Vout): This pin delivers the regulated output voltage, which is set using external resistors connected to the adjustment pin.
3. Adjust (Adj): By connecting resistors between this pin and the output and ground, you can set the output voltage to your desired level.
The LM317LDR2G is commonly used in applications where a stable voltage is required, such as battery chargers, LED drivers, and other power supply circuits. It provides features like thermal overload protection and short-circuit protection.
Manufacturer
The LM317LDR2G is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a semiconductor manufacturer that designs and produces a wide range of semiconductor components, including power and signal management, logic, discrete, and custom devices. The company serves various markets such as automotive, industrial, communications, computing, and consumer electronics. Onsemi is known for its focus on energy-efficient solutions and innovation in the semiconductor industry.
Application
The LM317LDR2G is a low-current adjustable voltage regulator used in various applications. It is commonly employed in power supply circuits to regulate voltage for components and systems. Specific applications include battery chargers, adjustable power supplies, and voltage conversion in electronic devices. It is also used in current regulation for LED drivers and other low-power applications where precise voltage control is necessary. Its versatility makes it suitable for consumer electronics, communication equipment, and industrial automation systems. The device is valued for its simplicity, reliability, and ability to provide a stable output voltage with minimal external components.
Package
The LM317LDR2G is a voltage regulator packaged in a small-outline transistor (SOT-223) package. This package type is suitable for surface mounting on circuit boards and provides a compact form factor for efficient thermal management and space-saving in electronic designs.
