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Name: LM317T
Brand: NTE Electronics, Inc
SKU: LM317T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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NTE Electronics, Inc LM317T

Part No.:: LM317T

Manufacturer:: NTE Electronics, Inc

Package:: TO-220-3

Datasheet:: LM317T.pdf

Description:: IC REG LIN POS ADJ 1.5A TO220-3

In Stock:: 3687

Quantity:: Add To Cart

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LM317T Specifications

Package/Case:
TO-220-3
Packaging:
Bag
Series:
-
ProductStatus:
Active
OutputConfiguration:
Positive
OutputType:
Adjustable
NumberofRegulators:
1
Voltage-Input(Max):
37V
Voltage-Output(Min/Fixed):
1.25V
Voltage-Output(Max):
37V
VoltageDropout(Max):
-
Current-Output:
1.5A
Current-Quiescent(Iq):
-
Current-Supply(Max):
-
PSRR:
64dB (120Hz)
ControlFeatures:
-
ProtectionFeatures:
Over Current, Over Temperature, Short Circuit
OperatingTemperature:
0°C ~ 125°C
MountingType:
Through Hole

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LM317T information

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LM338 vs LM317: Key Differences and Best Uses Explained

The LM338 and LM317 are of the most widely known bendy voltage controllers applied in digital circuits. These components, no matter the truth that similar in severa ways, have unmistakable traits that lead them to suitable for various applications. Understanding the important thing contrasts among them is important while selecting the right voltage controller to your venture. This article dives into these contrasts, clarifies their best employments, and makes a difference you make an educated choice.

Catalog

Outline of LM338 and LM317

What is the LM338?

LM338

The LM338 may be a vigorous movable voltage controller competent of giving up to 5A of yield current with a voltage extend of 1.2V to 32V. It's known for its unwavering quality in fueling high-current circuits, making it perfect for applications where a steady, flexible control supply is required.

What is the LM317?

LM317

On the other hand, the LM317 could be a more common movable voltage controller that gives up to 1.5A of output current with the same voltage run as the LM338. Due to its lower current capacity, it's regularly utilized in circuits that don't require as much control. In spite of its lower current yield, it is still exceedingly respected for its flexibility and ease of use.

LM338 VS LM317 Pinout

Pin Number

LM338 Pin Function

LM317 Pin Function

Adjust

Output

Input

LM338 VS LM317 Schematic Diagram

LM338 VS LM317 Schematic Diagram.

LM338 VS LM317 Specifications

Specification

LM338

LM317

Type

Adjustable Voltage Regulator

Output Current (max)

1.5A

Output Voltage Range

1.2V to 32V

1.25V to 37V

Input Voltage (max)

40V

Line Regulation

0.005%/V

0.01%/V

Load Regulation

0.1% (max)

Temperature Stability

0.002%/°C

0.005%/°C

Thermal Resistance

1.4°C/W

4°C/W

Operating Temperature Range

0°C to +125°C

Package Options

TO-3, TO-220

TO-220, TO-3, SOT-223

Protection Features

Over-temperature, short-circuit, current limiting

Key Differences Between LM338 and LM317

Current Handling Capability

One of the maximum sizable variations among the LM338 and the LM317 is their contemporary dealing with functionality. The LM338 voltage regulator can cope with as much as 5A, making it appropriate for high-electricity applications. In contrast, the LM317 can simplest cope with as much as 1.5A. This distinction makes the LM338 the higher desire for circuits that require greater electricity, together with motor drivers or high-electricity LED arrays.

Power Dissipation

Power dissipation is every other important element to bear in mind whilst selecting among those regulators. The LM338 has a better electricity dissipation functionality because of its cappotential to deal with better currents. This feature allows it to maintain stability and prevent overheating in demanding applications. The LM317, while capable of handling moderate power dissipation, may require additional heat sinking in higher-current applications to avoid thermal shutdown.

Package Variants

Both the LM338 and LM317 are to be had in exclusive package deal variants, that may affect your preference relying to your mission`s needs.

LM338 Package Variants

The LM338 is available in numerous package deal options, consisting of:

LM338K Voltage Regulator: This variation is housed in a TO-3 package deal, recognized for its great warmth dissipation properties. It`s perfect for programs in which the regulator might be uncovered to better temperatures or require greater green cooling.

LM338T Voltage Regulator: This model is to be had in a TO-220 package deal, that's greater compact and less difficult to combine into trendy PCBs. It`s appropriate for initiatives in which area is a constraint however in which excessive cutting-edge remains needed.

LM317 Package Variants

Similarly, the LM317 is to be had in exclusive package deal variants, consisting of TO-220 and TO-3. However, as it handles decrease cutting-edge, the selection of package deal frequently relies upon greater on comfort and area concerns than on warmth dissipation needs.

Cost Considerations

Cost is continually a component in factor selection. The LM317 typically charges much less than the LM338 because of its decrease cutting-edge potential and considerable use. For initiatives that don`t require excessive cutting-edge, the LM317 may be a cost-powerful solution. However, in case your mission needs greater electricity, making an investment withinside the greater steeply-priced LM338 is probably important to make certain reliability and performance.

Best Uses of LM338 and LM317

When to Use the LM338

The LM338 voltage regulator is first-rate utilized in programs that require a solid and adjustable excessive-cutting-edge electricity supply. Some ordinary use instances include:

Power Amplifiers: The LM338`s capacity to deal with as much as 5A of cutting-edge makes it best for powering audio amplifiers that call for excessive electricity degrees with out compromising on stability.

High-Power LED Drivers: LEDs, specifically excessive-electricity variants, require a constant cutting-edge to function efficiently. The LM338 can supply this with out the threat of overheating or voltage drops.

Battery Chargers: For charging huge battery packs, specifically the ones utilized in car or sun programs, the LM338 gives a dependable and adjustable charging voltage.

When to Use the LM317

The LM317 is more suitable for low to moderate power applications where cost and simplicity are more critical than high current capacity. Some typical applications include:

Bench Power Supplies: Hobbyists and engineers frequently use the LM317 to construct adjustable bench strength substances for trying out and prototyping circuits.

Low-Power LED Drivers: For riding smaller LED arrays or unmarried LEDs, the LM317 affords an easy-to-use, adjustable voltage supply.

Small Battery Chargers: The LM317 may be utilized in battery chargers for smaller battery packs, wherein excessive modern isn`t necessary.

Thermal Management Considerations

LM338 Thermal Management

Due to its higher current capacity, the LM338 generates more heat, especially in high-load scenarios. Proper heat sinking is crucial to maintain its performance and prevent thermal shutdown. The TO-3 package of the LM338K voltage regulator is especially advantageous here, as it dissipates heat more effectively. When using the LM338 in a compact design, you might need to consider additional cooling methods, such as forced air cooling or mounting the regulator on a larger heatsink.

LM317 Thermal Management

While the LM317 generates much less warmth because of its decrease modern capacity, it nevertheless calls for right thermal management, in particular in programs wherein it`s running close to its most modern rating. The TO-220 bundle is normally used for its stability among length and thermal performance, however in high-load conditions, extra heatsinking can be necessary.

Conclusion: Choosing the Right Regulator for Your Needs

The selection among the use of an LM338 or an LM317 relies upon in your mission`s precise requirements. If your utility needs better modern, along with in energy amplifiers or big battery chargers, the LM338 is the clean choice. Its better modern managing functionality, strong thermal management, and to be had bundle editions just like the LM338T voltage regulator make it perfect for high-energy designs.

Conversely, in case your mission is greater targeted on decrease energy needs, along with small LED drivers or adjustable bench energy supplies, the LM317 gives a cost-powerful and easy-to-use solution. Its decrease modern functionality is enough for plenty programs, and it stays a staple in electronics layout because of its versatility and availability.

In summary, each the LM338 and LM317 are treasured gear in an engineer`s arsenal, every with its strengths. By know-how their variations and satisfactory use cases, you could make sure that your mission has a dependable and green energy supply, tailor-made to its precise needs.

LM317T FAQ

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3. Are the LM317T price and inventory displayed accurate?

The price and inventory of LM317T fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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6. What is the process for return or replacement of LM317T?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM317T we delivered, we will accept the replacement or return of the LM317T only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LM317T.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations