LM317LDR2G

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LM317LDR2G

IC REG LIN POS ADJ 100MA 8SOIC

  • Manufacturer
  • Mfr. Part #LM317LDR2G
  • Package SOIC-8
  • Datasheet
  • In Stock7788

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Specifications

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)

Overview

Description

The LM317LDR2G is a low-cost, versatile linear voltage regulator that belongs to the LM317 family of variable regulators. It is designed to provide an output voltage range of 1.25V to 37V with a current capacity of up to 100 mA. This device is typically used in applications requiring adjustable voltage regulation, such as power supplies for electronic circuits.
The LM317LDR2G offers features such as thermal overload protection, current limiting, and safe area compensation, making it robust and reliable. It requires only a minimal number of external components: typically, two resistors to set the output voltage, and possibly capacitors to improve transient response.
Packaged in a surface-mount DPAK or similar form factor, the LM317LDR2G is suitable for space-constrained applications. It is widely used due to its ease of use, low cost, and ability to provide a stable output voltage across a range of input voltages. Its versatility makes it a popular choice for hobbyists and professionals alike in the field of electronics.

Features

The LM317LDR2G is a versatile, adjustable voltage regulator featuring a positive output voltage range of 1.25V to 37V, with a maximum output current of 100mA. It is designed for ease of use in a variety of applications, providing excellent line and load regulation. Key features include:
1. Adjustable Output: The output voltage can be set using two external resistors, allowing for customized voltage levels suited to specific needs.
2. Thermal Overload Protection: Safeguards the device from overheating, enhancing reliability and longevity.
3. Short-Circuit Current Limiting: Automatically limits the current in the event of a short circuit, protecting both the regulator and the load.
4. Safe Operating Area Protection: Ensures the device operates within its safe limits, preventing damage under various conditions.
5. Low Dropout Voltage: Typically around 3V, making it suitable for applications with relatively low voltage differences between input and output.
6. Available in Various Packages: Including TO-92 and SOT-223, providing flexibility in design and space-constrained applications.
Overall, the LM317LDR2G is a reliable choice for applications needing adjustable voltage regulation with built-in protection features.

Package

The LM317LDR2G is a low-dropout voltage regulator available in a surface-mount SOT-223 package. This package type is compact and suitable for applications where space is limited, providing efficient thermal performance and ease of use in automated soldering processes.

Pinout

The LM317LDR2G is a three-pin adjustable voltage regulator. Its primary function is to provide a stable output voltage that can be adjusted between 1.25V and approximately 37V, depending on the input voltage and the external resistor network used. The device can deliver an output current of up to 100 mA.
The three pins are:
1. Input (Vin): This is where the unregulated input voltage is applied.
2. Output (Vout): This pin provides the regulated output voltage.
3. Adjust (Adj): This pin is used to set the output voltage through an external voltage divider connected between the output and ground.
The LM317LDR2G is commonly used in applications requiring variable voltage regulation, such as power supplies and battery chargers.

Manufacturer

The LM317LDR2G is manufactured by ON Semiconductor. ON Semiconductor is a technology company that specializes in designing and manufacturing semiconductor components. They provide a wide range of products including power and signal management, logic, discrete, and custom devices for various industries such as automotive, communications, computing, consumer, industrial, medical, and military/aerospace.

Application

The LM317LDR2G is a versatile linear voltage regulator with adjustable output, commonly used in applications such as power supply solutions, battery chargers, and LED drivers. It's suitable for use in consumer electronics, telecommunications, and industrial equipment to provide stable voltage outputs. Its ability to regulate a range of output voltages makes it ideal for projects requiring variable power supply configurations.

Equivalent

The LM317LDR2G is a low-voltage adjustable linear voltage regulator. Equivalent products include:
1. LM317L from Texas Instruments
2. NTE1901 from NTE Electronics
3. L78L33ACD13TR from STMicroelectronics
4. MC78L05ABPR from ON Semiconductor
These alternatives offer similar functionality, though specifications might vary slightly, so it's important to review datasheets to ensure compatibility with your application.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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