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LM317 Adjustable Voltage Regulator IC

LM317 Adjustable Voltage Regulator IC

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  • Provides a stable, regulated output voltage in the range of 1.2V to 37V.
  • Output voltage can be adjusted using external resistors.
  • Can deliver a maximum continuous output current of 1.5A.
  • Has a typical dropout voltage of 1.5V.
  • Operates over a wide range of input voltages (3V to 40V).
  • Can operate over a wide range of temperatures (-40°C to 125°C).
  • Features built-in current limiting and thermal shutdown protection.
  • Provides short-circuit protection.

LM317 Adjustable Voltage Regulator IC

LM317 is a type of adjustable voltage regulator IC (Integrated Circuit) that is commonly used to provide a stable, regulated output voltage from an input voltage source. It is a versatile and widely-used IC that can be used to regulate a wide range of output voltages, making it a popular choice for many electronic projects.

The LM317 voltage regulator IC is designed to operate over a wide range of input voltages and can provide a regulated output voltage in the range of 1.2V to 37V. It has a number of features that make it easy to use, including built-in current limiting, thermal shutdown protection, and short-circuit protection.

To use an LM317 voltage regulator, users connect the input voltage source to the appropriate connections on the IC and then use external resistors to set the desired output voltage. The LM317 IC will then regulate the output voltage to the desired level, regardless of variations in the input voltage or load.

LM317 voltage regulator ICs are commonly used in a wide range of applications, including power supplies, battery chargers, and other electronic projects that require a stable, regulated output voltage. They are a convenient and easy-to-use solution for providing a regulated voltage in a variety of electronic projects.

Applications:

  • Power supplies
  • Battery chargers
  • Electronic projects

Also check our 7812 voltage regulator, which is a commonly used linear regulator. It operates with an input voltage ranging from 12V to 35VDC.

Package Includes:

  • 1 x LM317 Adjustable Voltage Regulator IC

Specifications:

Output Voltage Range 1.2V to 37V
Output Current 1.5A (max)
Dropout Voltage 1.5V (typical)
Operating Voltage 3V to 40V
Operating Temperature -40°C to 125°C
Dimensions
7x5x2mm
Weight  2g

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1.What is a LM317 used for? 

  • The LM317 adjustable voltage regulator IC is a widely-used and versatile IC that is suitable for a wide range of applications. It is commonly used to provide a stable, regulated output voltage from an input voltage source. Some of the common uses for the LM317 include:
    • Power supplies: The LM317 can be used to regulate the output voltage of a power supply, providing a stable voltage to power electronic devices.
    • Battery chargers: The LM317 can be used to regulate the charging voltage of a battery charger, ensuring that the battery is charged at the appropriate voltage.
    • Voltage conversion: The LM317 can be used to convert a higher voltage to a lower voltage, or vice versa.
    • Current limiting: The LM317 can be used to limit the current flowing through a circuit, protecting devices from overcurrent conditions.
    • Other electronic projects: The LM317 is a widely-used IC that is suitable for a wide range of electronic projects, including robotics, automation, and other applications that require a stable, regulated output voltage.

2.How much current can a LM317 handle? 

  • The LM317 adjustable voltage regulator IC is designed to handle a maximum continuous output current of 1.5A. This means that it can deliver up to 1.5A of current to a load without overheating or otherwise failing. It is important to note that the maximum output current may be limited by the package type and other factors, so it is always a good idea to consult the datasheet for the specific IC you are using to confirm the maximum output current. In addition to the maximum output current, the LM317 also has a number of built-in current limiting and protection features that help to prevent overheating and damage to the IC. It has a built-in current limiting circuit that limits the output current to a safe level in the event of an overcurrent condition, and it also has thermal shutdown protection that shuts down the IC if the temperature gets too high.

3.What is the input voltage of LM317? 

  • The LM317 adjustable voltage regulator IC is designed to operate over a wide range of input voltages, from 3V to 40V. This means that it can accept an input voltage within this range and provide a stable, regulated output voltage. The input voltage range of the LM317 is one of its key features, as it allows the IC to be used in a wide range of applications. It is particularly useful in situations where the input voltage may vary, as the LM317 can maintain a stable output voltage despite changes in the input voltage. It is important to note that the LM317 has a minimum input voltage requirement of 3V. If the input voltage falls below this level, the IC may not be able to maintain regulation and the output voltage may become unstable.

4.How does a LM317 voltage regulator work?

  • The LM317 adjustable voltage regulator IC is a widely-used and versatile IC that is commonly used to provide a stable, regulated output voltage from an input voltage source. It is a three-terminal IC that consists of an input terminal, an output terminal, and an adjust terminal. To use the LM317, users connect the input voltage source to the input terminal and the load to the output terminal. They then use external resistors to set the desired output voltage. The LM317 IC will then regulate the output voltage to the desired level, regardless of variations in the input voltage or load. The LM317 voltage regulator IC uses an internal voltage reference to compare the output voltage to the desired voltage level. It then uses an internal error amplifier to adjust the output voltage as needed to maintain the desired voltage level.