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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearLM317K
LM317K Image
Image may be representation.
See specifications for product details.

LM317K - STMicroelectronics

Manufacturer Part Number
LM317K
Manufacturer
STMicroelectronics
Allelco Part Number
32D-LM317K
ECAD Model
Parts Description
IC REG LINEAR POS ADJ 1.5A TO3
Detailed Description
Package
TO-204AA, TO-3
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
In stock: 14780

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Quantity

Specifications

LM317K Tech Specifications
STMicroelectronics - LM317K technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - LM317K

Product Attribute Attribute Value  
Manufacturer STMicroelectronics  
Voltage Dropout (Max) -  
Voltage - Output (Min/Fixed) 1.2V  
Voltage - Output (Max) 37V  
Voltage - Input (Max) 40V  
Supplier Device Package TO-3  
Series -  
Protection Features Over Current, Over Temperature, Short Circuit  
Package / Case TO-204AA, TO-3  
Package Bulk  
Product Attribute Attribute Value  
PSRR 80dB ~ 65dB (120Hz)  
Output Type Adjustable  
Output Configuration Positive  
Operating Temperature 0°C ~ 125°C  
Number of Regulators 1  
Mounting Type Through Hole  
Current - Quiescent (Iq) 10 mA  
Current - Output 1.5A  
Control Features -  
Base Product Number LM317  

Parts Introduction

Manufacturer Part Number

LM317K

Manufacturer

stmicroelectronics

Introduction

The LM317K is a 3-terminal adjustable positive voltage regulator capable of supplying up to 1.5A of output current. It is suitable for a wide range of applications, including regulated power supplies, battery chargers, and precision references.

Product Features and Performance

Adjustable output voltage range from 1.2V to 37V

Output current up to 1.5A

Low dropout voltage of typically 2V at 1.5A of load

Excellent line and load regulation

High ripple rejection ratio of 80dB at low frequencies

Overload and short-circuit protection

Product Advantages

Wide adjustable output voltage range

High output current capability

Low dropout voltage for efficient operation

Excellent regulation and ripple rejection

Overload and short-circuit protection

Key Reasons to Choose This Product

Versatile and reliable voltage regulation

Capable of handling high output current

Efficient and stable performance

Robust protection features

Suitable for a wide range of power supply applications

Quality and Safety Features

Overload and short-circuit protection

Thermal shutdown protection

Compatibility

The LM317K is compatible with a variety of power supply and control applications that require an adjustable positive voltage regulator.

Application Areas

Regulated power supplies

Battery chargers

Precision references

Adjustable voltage sources

General-purpose power regulation

Product Lifecycle

The LM317K is an obsolete product, meaning it is no longer in active production. However, there are equivalent or alternative models available from stmicroelectronics and other manufacturers that can serve similar purposes. Customers are advised to contact our website's sales team for more information on available alternatives.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics LM317K

Product Attribute LM317K LM317KTTR LM317K STEEL LM317G
Part Number LM317K LM317KTTR LM317K STEEL LM317G
Manufacturer STMicroelectronics Texas Instruments Texas Instruments UMW
Protection Features Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit
Base Product Number LM317 LM317 LM317 -
PSRR 80dB ~ 65dB (120Hz) 80dB ~ 65dB (120Hz) 80dB ~ 65dB (120Hz) 75dB ~ 60dB (120Hz)
Operating Temperature 0°C ~ 125°C 0°C ~ 125°C 0°C ~ 125°C 0°C ~ 125°C (TJ)
Supplier Device Package TO-3 DDPAK/TO-263-3 TO-3-2 SOT-223
Control Features - - - -
Voltage - Output (Max) 37V 37V 37V 37V
Number of Regulators 1 1 1 1
Current - Quiescent (Iq) 10 mA 10 mA 10 mA 12 mA
Output Configuration Positive Positive Positive Positive
Series - - - -
Voltage Dropout (Max) - - - -
Mounting Type Through Hole Surface Mount Through Hole Surface Mount
Voltage - Output (Min/Fixed) 1.2V 1.25V 1.25V 1.2V
Package / Case TO-204AA, TO-3 TO-263-4, D²Pak (3 Leads + Tab), TO-263AA TO-204AA, TO-3 TO-261-4, TO-261AA
Voltage - Input (Max) 40V 40V 37V 40V
Output Type Adjustable Adjustable Adjustable Adjustable
Package Bulk Tape & Reel (TR) Tray Tape & Reel (TR)
Current - Output 1.5A 1.5A 1.5A 1.5A

LM317K Datasheet PDF

Download LM317K pdf datasheets and STMicroelectronics documentation for LM317K - STMicroelectronics.

Datasheets
Cylindrical Battery Holders.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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LM317K Image

LM317K

STMicroelectronics
32D-LM317K

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