LM317L Status: ACTIVE

3/8 Pin 100mA Adjustable Positive Regulator

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Datasheet

3-Terminal Adjustable Regulator (Rev. C) (PDF 487 KB)
21 Mar 2007

	LM317	LM317L	LM317M
Vout(Min)(V)	1.25	1.2	1.25
Vout(Max)(V)	37	32	37
Iout(Max)(A)	1.5	0.1	0.5
Vdo(Max)(V)	3	2.5	3
Vin(Min)(V)	4.2	3.7	4.2
Vin(Max)(V)	40	38	40
Pin/Package	2PFM, 3DDPAK/TO-263, 3TO-220, 4SOT-223	3SOT-89, 3TO-92, 8SOIC, 8TSSOP	3PFM, 4SOT-223
Approx. Price (US$)	0.36 \| 1ku	0.14 \| 1ku	0.36 \| 1ku
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

LM317: 3/4 Pin 1.5A Adjustable Positive Voltage Regulator
LM317M: 3/4 Pin 500mA Adjustable Positive Voltage Regulator
TL317: 3/8 Pin 100mA Adjustable Positive Voltage Regulator

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Product Information

Features

Output Voltage Range Adjustable 1.2 V to 32 V When Used With External Resistor Divider
Output Current Capability of 100 mA
Input Regulation Typically 0.01% Per Input-Voltage Change
Output Regulation Typically 0.5%
Ripple Rejection Typically 80 dB
For Higher Output Current Requirements, See LM317M (500 mA) and LM317 (1.5 A)

DESCRIPTION/ORDERING INFORMATION

The LM317L is an adjustable three-terminal positive-voltage regulator capable of supplying 100 mA over an output-voltage range of 1.2 V to 32 V. It is exceptionally easy to use and requires only two external resistors to set the output voltage.

In addition to higher performance than fixed regulators, this regulator offers full overload protection, available only in integrated circuits. Included on the chip are current-limiting and thermal-overload protection. All overload-protection circuitry remains fully functional even when ADJUSTMENT is disconnected. Normally, no capacitors are needed unless the device is situated far from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. ADJUSTMENT can be bypassed to achieve very high ripple rejection, which is difficult to achieve with standard three-terminal regulators.

In addition to replacing fixed regulators, the LM317L regulator is useful in a wide variety of other applications. Since the regulator is floating and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded. Its primary application is that of a programmable output regulator, but by connecting a fixed resistor between ADJUSTMENT and OUTPUT, this device can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping ADJUSTMENT to ground, programming the output to 1.2 V, where most loads draw little current.

The LM317LC is characterized for operation over the virtual junction temperature range of 0°C to 125°C. The LM317LI is characterized for operation over the virtual junction temperature range of -40°C to 125°C.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
LM317LCD	ACTIVE	0 to 125	0.16 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
LM317LCDE4	ACTIVE	0 to 125	0.16 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
LM317LCDG4	ACTIVE	0 to 125	0.16 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
LM317LCDR	ACTIVE	0 to 125	0.14 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCDRE4	ACTIVE	0 to 125	0.14 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCDRG4	ACTIVE	0 to 125	0.14 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCLP	ACTIVE	0 to 125	0.16 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK	Purchase Samples
LM317LCLPE3	ACTIVE	0 to 125	0.16 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK	Purchase Samples
LM317LCLPR	ACTIVE	0 to 125	0.14 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCLPRE3	ACTIVE	0 to 125	0.14 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCPK	ACTIVE	0 to 125	0.30 \| 1ku	SOT-89 (PK) \| 3		1000 \| LARGE T&R			Purchase Samples
LM317LCPKG3	ACTIVE	0 to 125	0.30 \| 1ku	SOT-89 (PK) \| 3		1000 \| LARGE T&R			Purchase Samples
LM317LCPW	ACTIVE	0 to 125	0.16 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
LM317LCPWE4	ACTIVE	0 to 125	0.16 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
LM317LCPWG4	ACTIVE	0 to 125	0.16 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
LM317LCPWR	ACTIVE	0 to 125	0.14 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCPWRE4	ACTIVE	0 to 125	0.14 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LCPWRG4	ACTIVE	0 to 125	0.14 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
LM317LID	ACTIVE	-40 to 125	0.17 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE		Purchase Samples
LM317LIDG4	ACTIVE	-40 to 125	0.17 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
LM317LIDR	ACTIVE	-40 to 125	0.16 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
LM317LIDRG4	ACTIVE	-40 to 125	0.16 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
LM317LILP	ACTIVE	-40 to 125	0.17 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK		Purchase Samples
LM317LILPE3	ACTIVE	-40 to 125	0.17 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK	Purchase Samples
LM317LILPR	ACTIVE	-40 to 125	0.16 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R
LM317LILPRE3	ACTIVE	-40 to 125	0.16 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R
LM317LIPK	ACTIVE	-40 to 125	0.32 \| 1ku	SOT-89 (PK) \| 3		1000 \| LARGE T&R
LM317LIPKG3	ACTIVE	-40 to 125	0.32 \| 1ku	SOT-89 (PK) \| 3		1000 \| LARGE T&R
LM317LIPW	ACTIVE	-40 to 125	0.17 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE		Purchase Samples
LM317LIPWG4	ACTIVE	-40 to 125	0.17 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
LM317LIPWR	ACTIVE	-40 to 125	0.16 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R
LM317LIPWRG4	ACTIVE	-40 to 125	0.16 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:56 AM GMT, 25 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksLM317LCD
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksLM317LCDE4
None Reported View Distributors
TI Lead Time*: 20 WeeksLM317LCDG4
None Reported View Distributors
TI Lead Time*: 20 WeeksLM317LCDR
Americas	Arrow	>1k
Americas	Avnet	>1k
Asia	WPI	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksLM317LCDRE4
None Reported View Distributors
TI Lead Time*: 20 WeeksLM317LCDRG4
None Reported View Distributors
TI Lead Time*: 12 WeeksLM317LCLP
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksLM317LCLPE3
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM317LCLPR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	215
TI Lead Time*: 12 WeeksLM317LCLPRE3
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM317LCPK
Worldwide	Mouser Electronics	898
TI Lead Time*: 12 WeeksLM317LCPKG3
None Reported View Distributors
TI Lead Time*: 18 WeeksLM317LCPW
Americas	Avnet	>1k
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 18 WeeksLM317LCPWE4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksLM317LCPWG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksLM317LCPWR
Americas	Avnet	>1k
Americas	Newark	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksLM317LCPWRE4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksLM317LCPWRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksLM317LID
Americas	Arrow	>1k
	Avnet	516
	Newark	>1k
	Rochester Electronics	>1k
Asia	WPI	9
Europe	Avnet-SILICA	150
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	57
TI Lead Time*: 20 WeeksLM317LIDG4
Europe	EBV Elektronik	75
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksLM317LIDR
Americas	Arrow	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksLM317LIDRG4
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM317LILP
Americas	Arrow	>1k
	Newark	>1k
	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Asia	WPI	587
Europe	Compel	51
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM317LILPE3
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM317LILPR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksLM317LILPRE3
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM317LIPK
Americas	Arrow	>1k
Americas	Newark	628
Asia	Farnell Asia	130
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksLM317LIPKG3
None Reported View Distributors
TI Lead Time*: 18 WeeksLM317LIPW
Americas	Arrow	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksLM317LIPWG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksLM317LIPWR
Americas	Arrow	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksLM317LIPWRG4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
LM317LCD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCDE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCDRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCLP	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LCLPE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LCLPR	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LCLPRE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LCPK	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
LM317LCPKG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
LM317LCPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCPWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCPWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LCPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LID	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LIDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LIDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LIDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LILP	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LILPE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LILPR	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LILPRE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM317LIPK	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
LM317LIPKG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
LM317LIPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LIPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LIPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM317LIPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for LM317L

Datasheet

3-Terminal Adjustable Regulator (Rev. C) (PDF, 487 KB)
21 Mar 2007

Application Notes

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View Application Notes for Standard Voltage Regulators

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LM317L Status: ACTIVE

3/8 Pin 100mA Adjustable Positive Regulator

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