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LM317K The STMicroelectronics LM317K is an adjustable positive voltage regulator capable of supplying over 1.5A of load current. It offers an output voltage range from 1.2V to 37V.
Mfr Part #:

LM317K

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LM317K is an adjustable positive voltage regulator capable of supplying over 1.5A of load current. It offers an output voltage range from 1.2V to 37V.
✓ Total Stock: 2,186 pcs
$ Price Range: $0.30

LM317K Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
2,178 pcs
On Request
2178 pcs On Request 1 On Request On Request On Request On Request On Request
HYPER IC FLORIDA INC. ✓
Non-Authorised Inventory information
8 pcs
On Request
8 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LM317K Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
Storage Temperature
Supplier Device Package
Supplier Package
Tape & Reel
Voltage
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LM317K Description

Short technical summary and product information.

The LM317K from STMicroelectronics is a monolithic integrated circuit designed as a positive adjustable voltage regulator. It is capable of supplying load currents in excess of 1.5A over an output voltage range adjustable from 1.2V to 37V. The device is easy to use and requires only two external resistors to set the output voltage.

 

Key electrical characteristics include 0.1% line and load regulation, and a typical reference voltage of 1.25V. The regulator series includes complete protections such as current limiting, thermal shutdown, and SOA control. It operates within a junction temperature range of 0°C to 125°C.

 

The LM317K is available in a TO-3 package, suitable for through-hole mounting. Its robust design and adjustable output make it a versatile component for various power supply applications where a stable and adjustable voltage is required.

LM317K Quick Information

Product Type: Voltage Regulator
Canonical Name: LM317K Adjustable Positive Voltage Regulator
Subcategory: Linear

LM317K Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM317K Estimated Pricing

Qty Low High
1+ $0.30 $0.30

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM317K Features

  • Adjustable positive voltage regulator.
  • Output voltage range 1.2V to 37V.
  • Output current exceeds 1.5A.
  • TO-3 package for through-hole mounting.
  • Internal protection features included.

LM317K Applications

  • Adjustable power supply circuits.
  • Regulated voltage for electronic systems.
  • Battery charging applications.
  • Post-regulation for switching supplies.

LM317K FAQs

5 frequently asked questions generated from this part’s specifications.
What is the adjustable output voltage range for the LM317K?

The output voltage range for the LM317K is adjustable from 1.2V to 37V.

What is the maximum output current for the LM317K?

The LM317K can supply output current in excess of 1.5A, with a maximum load current specified up to 2.2A under certain conditions.

What type of package is the LM317K supplied in?

The LM317K is supplied in a TO-3 package.

What is the operating temperature range for the LM317K?

The operating junction temperature range for the LM317K is 0°C to 125°C.

Does the LM317K have built-in protection features?

Yes, the LM317K includes protection features such as over current, over temperature, and short circuit protection.

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