Datasheet Archive: LM317 datasheet by STMicroelectronics

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LM317 Price & Stock

Distributor	Stock	Lead Time	Min Order Qty	Price	Buy
Avnet Americas ()	212,000	8 Weeks	1,000	1 - 10 - 100 - 1000 $0.24 10000 $0.24	Buy Now
	120,000	12 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 $0.12	Buy Now
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	5,000	8 Weeks	3,000	1 - 10 - 100 - 1000 - 10000 $0.29	Buy Now
Mouser Electronics ()	1,747			1 $0.65 10 $0.46 100 $0.36 1000 $0.31 10000 $0.27	Buy Now
	1,747			1 $0.65 10 $0.46 100 $0.36 1000 $0.31 10000 $0.27	Buy Now
	1,747			1 $0.65 10 $0.46 100 $0.36 1000 $0.31 10000 $0.27	Buy Now
	1,373			1 $1.57 10 $0.95 100 $0.61 1000 $0.42 10000 $0.30	Buy Now
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Verical ()	800,000		2,500	1 - 10 - 100 - 1000 - 10000 $0.17	Buy Now
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	12,500		2,500	1 - 10 - 100 - 1000 - 10000 $0.17	Buy Now
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	2,490		92	1 - 10 - 100 $0.34 1000 $0.33 10000 $0.33	Buy Now
Arrow Electronics ()	2,035,000	12 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 $0.21	Buy Now
	800,000	12 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 $0.17	Buy Now
	64,199	8 Weeks	1	1 $0.44 10 $0.35 100 $0.28 1000 $0.23 10000 $0.21	Buy Now
	30,615	8 Weeks	1,000	1 - 10 - 100 - 1000 $0.25 10000 $0.24	Buy Now
	10,000	12 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 $0.17	Buy Now
	4,189	12 Weeks	1	1 $0.33 10 $0.33 100 $0.33 1000 $0.33 10000 $0.33	Buy Now
	1	50 Weeks	1	1 $0.40 10 $0.40 100 $0.40 1000 $0.40 10000 $0.40	Buy Now
RS ()			10	1 - 10 $0.67 100 $0.64 1000 $0.57 10000 $0.57	Get Quote
			10	1 - 10 $0.56 100 $0.53 1000 $0.47 10000 $0.47	Get Quote

STMicroelectronics ()	21,993		1	1 $0.55 10 $0.39 100 $0.30 1000 $0.27 10000 $0.27	Buy Now
	20,355		1	1 $0.45 10 $0.32 100 $0.25 1000 $0.22 10000 $0.22	Buy Now
	20,309		1	1 $0.32 10 $0.22 100 $0.17 1000 $0.15 10000 $0.15	Buy Now
	15,693		1	1 $0.28 10 $0.19 100 $0.15 1000 $0.13 10000 $0.13	Buy Now
	15,641		1	1 $0.32 10 $0.22 100 $0.17 1000 $0.17 10000 $0.17	Buy Now
	8,244		1	1 $1.11 10 $0.80 100 $0.61 1000 $0.55 10000 $0.55	Buy Now
	4,587		1	1 $0.56 10 $0.40 100 $0.31 1000 $0.27 10000 $0.27	Buy Now
	3,600		1	1 $0.61 10 $0.43 100 $0.31 1000 $0.28 10000 $0.28	Buy Now
	2,257		1	1 $1.22 10 $0.89 100 $0.72 1000 $0.65 10000 $0.65	Buy Now
	2,025		1	1 $0.81 10 $0.58 100 $0.46 1000 $0.41 10000 $0.41	Buy Now
	1,747		1	1 $0.64 10 $0.45 100 $0.35 1000 $0.31 10000 $0.31	Buy Now
	1,373		1	1 $1.54 10 $0.94 100 $0.60 1000 $0.52 10000 $0.52	Buy Now
			1	1 $1.28 10 $0.78 100 $0.50 1000 $0.43 10000 $0.43	Buy Now
Rochester Electronics	4,000		1	1 - 10 - 100 $0.18 1000 $0.15 10000 $0.13	Buy Now
Ameya Holding Limited ()	14,732			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	1,665			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	563			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	551			1 - 10 - 100 - 1000 - 10000 -	Get Quote
ComSIT USA ()	745			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	1,257			1 - 10 - 100 - 1000 - 10000 -	Get Quote
GLYN GmbH & Co. KG	3,000			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Velocity Electronics	37,646			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Chip 1 Exchange ()	500,000			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	998			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	6			1 - 10 - 100 - 1000 - 10000 -	Get Quote
	6			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Avnet Silica ()	280,000	13 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	88,900	9 Weeks	50	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	21,000	9 Weeks	1,000	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	20,000	11 Weeks	2,000	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	17,400	9 Weeks	50	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	12,500	11 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	12,000	11 Weeks	2,000	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	10,000	11 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	7,500	11 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 -	Buy Now
EBV Elektronik ()	2,265,000	13 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	229,000	9 Weeks	1,000	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	77,500	11 Weeks	2,500	1 - 10 - 100 - 1000 - 10000 -	Buy Now
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	2,000	11 Weeks	2,000	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	1,650	9 Weeks	50	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	500	9 Weeks	50	1 - 10 - 100 - 1000 - 10000 -	Buy Now
	300	9 Weeks	50	1 - 10 - 100 - 1000 - 10000 -	Buy Now
Maritex	1,995		1	1 $0.23 10 $0.17 100 $0.12 1000 $0.10 10000 $0.10	Buy Now
New Advantage Corporation	249,796		1	1 - 10 - 100 $0.22 1000 $0.15 10000 $0.12	Buy Now
Win Source Electronics ()	190,000			1 - 10 - 100 - 1000 $0.18 10000 $0.15	Buy Now
	21,192			1 - 10 - 100 $0.59 1000 $0.39 10000 $0.39	Buy Now

LM317 Frequently Asked Questions (FAQs)

The minimum input voltage required for the LM317 to operate is 3V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage should be at least 8V.
To ensure stability and prevent oscillations, a minimum output capacitance of 1uF is recommended, and the input capacitor should be at least 0.1uF. Additionally, the output voltage should be decoupled from the input voltage using a 10uF capacitor.
The maximum current that the LM317 can deliver is 1.5A. However, it's recommended to derate the current to 1A or less to ensure reliable operation and prevent overheating.
Yes, the LM317 can be used as a variable voltage regulator by connecting a potentiometer between the output and the adjust pin. The output voltage can be adjusted from 1.25V to 37V using this method.
To protect the LM317 from overheating, ensure that the device is mounted on a heat sink with a thermal resistance of less than 50°C/W. Additionally, the input voltage should be kept as low as possible to reduce power dissipation.

LM317 datasheet by STMicroelectronics

LM317 datasheet preview Download Datasheet

LM317 Price & Stock

LM317 Frequently Asked Questions (FAQs)

LM317 datasheet preview

Download Datasheet