LM317EMPX/NOPB

Active

Texas Instruments

1.5-A, 40-V, ADJUSTABLE LINEAR VOLTAGE REGULATOR

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsLow Dropout Regulators Quick Reference Guide (Rev. P)Create a simple LED driver +13

LM317EMPX/NOPB

Active

Texas Instruments

1.5-A, 40-V, ADJUSTABLE LINEAR VOLTAGE REGULATOR

Deep-Dive with AI

DocumentsLow Dropout Regulators Quick Reference Guide (Rev. P)Create a simple LED driver +13

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	LM317EMPX/NOPB	LM317 Series

Board Type	-	Fully Populated
Channels per IC	-	1
Current - Output	1.5 A	1.5 - 500 A
Current - Quiescent (Iq)	10 mA	2.5 - 12 mA
Mounting Type	Surface Mount	Through Hole, Surface Mount
Number of Regulators	1	1
Operating Temperature [Max]	125 °C	125 °C
Operating Temperature [Min]	0 °C	-40 - 0 °C
Output Configuration	Positive	Positive
Output Type	Adjustable	Adjustable
Package / Case	TO-261AA, TO-261-4	TO-39-3 Metal Can, TO-205AD, TO-243AA, 8-SOIC, TO-220-3, 6-UFBGA, DSBGA, TO-92-3, TO-3, TO-204AA, TO-261AA, TO-261-4, 8-TSSOP (0.173", 4.40mm Width), DPAK (2 Leads + Tab), SC-63, TO-252-3, TO-226-3, TO-92-3 (TO-226AA) Formed Leads, TO-263-4, D2PAK (3 Leads + Tab), TO-263AA, TO-220-3, Formed Leads, 6-VFBGA
Package / Case	-	3.9 mm
Package / Case	-	TO-226-3, TO-226AA
Protection Features	Over Current, Short Circuit, Over Temperature	Over Current, Short Circuit, Over Temperature
PSRR	-	64 dB
PSRR [Max]	80 dB	64 - 80 dB
PSRR [Min]	65 dB	57 - 65 dB
Regulator Type	-	Positive and Negative Adjustable
Supplied Contents	-	Board(s)
Supplier Device Package	SOT-223-4	SOT-89-3, 8-SOIC, TO-220-3, 6-DSBGA, TO-92-3, TO-3-2, SOT-223-4, 8-TSSOP, TO-252-3, TO-263 (DDPAK-3), LF01
Utilized IC / Part	-	LM337-N, LM317A
Voltage - Input (Max) [Max]	37 V	37 - 60 V
Voltage - Output	-	-5 V
Voltage - Output	-	5 V
Voltage - Output (Max) [Max]	37 V	32 - 57 V
Voltage - Output (Min/Fixed)	1.25 V	1.2 - 1.25 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.07
		10	$ 1.32
		25	$ 1.12
		100	$ 0.90
		250	$ 0.79
		500	$ 0.73
		1000	$ 0.67
	Digi-Reel®	1	$ 2.07
		10	$ 1.32
		25	$ 1.12
		100	$ 0.90
		250	$ 0.79
		500	$ 0.73
		1000	$ 0.67
	Tape & Reel (TR)	2000	$ 0.63
		4000	$ 0.59
		6000	$ 0.57
		10000	$ 0.55
		14000	$ 0.54
Texas Instruments	LARGE T&R	1	$ 1.03
		100	$ 0.79
		250	$ 0.58
		1000	$ 0.42

LM317 Series

EVAL BOARD FOR LM317A LM337-N

Part	Regulator Type	Voltage - Output [Min]	Voltage - Output [Max]	Channels per IC	Current - Output	Board Type	Utilized IC / Part	Supplied Contents	Number of Regulators	Operating Temperature [Min]	Operating Temperature [Max]	Current - Quiescent (Iq)	Output Type	Output Configuration	Mounting Type	Voltage - Output (Max) [Max]	Package / Case	PSRR [Min]	PSRR [Max]	Voltage - Output (Min/Fixed)	Protection Features	Voltage - Input (Max) [Max]	Supplier Device Package	Package / Case	PSRR	Package / Case
Texas Instruments LM317A-337N-EVM	Positive and Negative Adjustable	-5 V	5 V	1	1.5 A	Fully Populated	LM317A, LM337-N	Board(s)
Texas Instruments LM317H					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-205AD, TO-39-3 Metal Can	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit
Texas Instruments LM317H/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-205AD, TO-39-3 Metal Can	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit
Texas Instruments LM317LCPK					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	TO-243AA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	SOT-89-3
Texas Instruments LM317LID					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-SOIC	3.9 mm
Texas Instruments LM317T/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3			1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-220-3		64 dB
Texas Instruments LM317LITP/NOPB					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Surface Mount	37 V	6-UFBGA, DSBGA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		6-DSBGA
Texas Instruments LM317LZ/LFT7					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Through Hole	37 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317HVK STEEL/NOPB					1.5 A				1	0 °C	125 °C	12 mA	Adjustable	Positive	Through Hole	57 V	TO-204AA, TO-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	60 V	TO-3-2
Texas Instruments LM317LZ/LFT1					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Through Hole	37 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317AT					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3
Texas Instruments LM317MDCYG3					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317MDCYRG3					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317LCDR					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-SOIC	3.9 mm
Texas Instruments LM317LIPKG3					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	TO-243AA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	SOT-89-3
Texas Instruments LM317LCDRG4					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-SOIC	3.9 mm
Texas Instruments LM317LIPWR					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-TSSOP (0.173", 4.40mm Width)	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-TSSOP
Texas Instruments LM317AMDTX					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317MKTPRG3					500 mA				1	0 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317LZ/LFT4					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Through Hole	37 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317LILPR					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Through Hole	32 V	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	TO-92-3
Texas Instruments LM317AEMPX					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317AH/NOPB					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-205AD, TO-39-3 Metal Can	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit
Texas Instruments LM317KCT					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3
Texas Instruments LM317LCLP					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Through Hole	32 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317LCD					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-SOIC	3.9 mm
Texas Instruments LM317MQKTPR					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317KTTRG3					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	D2PAK (3 Leads + Tab), TO-263-4, TO-263AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-263 (DDPAK-3)
Texas Instruments LM317HVH/NOPB					1.5 A				1	0 °C	125 °C	12 mA	Adjustable	Positive	Through Hole	57 V	TO-205AD, TO-39-3 Metal Can	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	60 V
Texas Instruments LM317AT/NOPB					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3
Texas Instruments LM317DCYR					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	57 dB	64 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317AMDTX/NOPB					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317LIDRG4					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-SOIC	3.9 mm
Texas Instruments LM317LIPW					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-TSSOP (0.173", 4.40mm Width)	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-TSSOP
Texas Instruments LM317LMX					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Surface Mount	37 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		8-SOIC	3.9 mm
Texas Instruments LM317LIDR					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-SOIC	3.9 mm
Texas Instruments LM317MDTX/NOPB					500 mA				1	0 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-252-3
Texas Instruments LM317LILP					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Through Hole	32 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317EMPX/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	SOT-223-4
Texas Instruments LM317HVK STEEL					1.5 A				1	0 °C	125 °C	12 mA	Adjustable	Positive	Through Hole	57 V	TO-204AA, TO-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	60 V	TO-3-2
Texas Instruments LM317KCSE3					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3
Texas Instruments LM317AEMPX/NOPB					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317KC					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3
Texas Instruments LM317AH					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-205AD, TO-39-3 Metal Can	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit
Texas Instruments LM317DCYRG3					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	57 dB	64 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317LCPW					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-TSSOP (0.173", 4.40mm Width)	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-TSSOP
Texas Instruments LM317MQDCYRG3					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317KTTR					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	D2PAK (3 Leads + Tab), TO-263-4, TO-263AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-263 (DDPAK-3)
Texas Instruments LM317LCLPRE3					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Through Hole	32 V	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	TO-92-3
Texas Instruments LM317AMDT					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317EMP					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	SOT-223-4
Texas Instruments LM317LZ/LFT3					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Through Hole	37 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317MQDCYR					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317EMP/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	SOT-223-4
Texas Instruments LM317AEMP/NOPB					1.5 A				1	-40 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317MDT/NOPB					500 mA				1	0 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-252-3
Texas Instruments LM317MDCYR					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317S/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	D2PAK (3 Leads + Tab), TO-263-4, TO-263AA			1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-263 (DDPAK-3)		64 dB
Texas Instruments LM317LCPWRG4					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-TSSOP (0.173", 4.40mm Width)	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-TSSOP
Texas Instruments LM317K STEEL					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-204AA, TO-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-3-2
Texas Instruments LM317LMX/NOPB					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Surface Mount	37 V	8-SOIC	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		8-SOIC	3.9 mm
Texas Instruments LM317K STEEL/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-204AA, TO-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-3-2
Texas Instruments LM317T/LF01					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-220-3, Formed Leads			1.25 V	Over Current, Over Temperature, Short Circuit	37 V	LF01, TO-220-3		64 dB
Texas Instruments LM317LZ/LFT2					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Through Hole	37 V	TO-92-3	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		TO-92-3			TO-226-3, TO-226AA
Texas Instruments LM317LIPK					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	TO-243AA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	SOT-89-3
Texas Instruments LM317MKVURG3					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317LITPX/NOPB					100 mA				1	-40 °C	125 °C	5 mA	Adjustable	Positive	Surface Mount	37 V	6-UFBGA, DSBGA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		6-DSBGA
Texas Instruments LM317KCE3					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3
Texas Instruments LM317LIBP					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	37 V	6-VFBGA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		6-DSBGA
Texas Instruments LM317LCLPR					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Through Hole	32 V	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	TO-92-3
Texas Instruments LM317SX/NOPB					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Surface Mount	37 V	D2PAK (3 Leads + Tab), TO-263-4, TO-263AA			1.25 V	Over Current, Over Temperature, Short Circuit	37 V	TO-263 (DDPAK-3)		64 dB
Texas Instruments LM317LCPWE4					100 mA				1	0 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	32 V	8-TSSOP (0.173", 4.40mm Width)	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit	38 V	8-TSSOP
Texas Instruments LM317HVH					1.5 A				1	0 °C	125 °C	12 mA	Adjustable	Positive	Through Hole	57 V	TO-205AD, TO-39-3 Metal Can	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	60 V
Texas Instruments LM317MKTPR					500 mA				1	0 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	DPAK (2 Leads + Tab), SC-63, TO-252-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-252-3
Texas Instruments LM317HVT/NOPB					1.5 A				1	0 °C	125 °C	12 mA	Adjustable	Positive	Through Hole	57 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit	60 V	TO-220-3
Texas Instruments LM317LIBPX					100 mA				1	-40 °C	125 °C	2.5 mA	Adjustable	Positive	Surface Mount	37 V	6-VFBGA	65 dB	80 dB	1.2 V	Over Current, Over Temperature, Short Circuit		6-DSBGA
Texas Instruments LM317MQDCYRG4					500 mA				1	-40 °C	125 ¯C	10 mA	Adjustable	Positive	Surface Mount	37 V	TO-261-4, TO-261AA	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		SOT-223-4
Texas Instruments LM317KCS					1.5 A				1	0 °C	125 °C	10 mA	Adjustable	Positive	Through Hole	37 V	TO-220-3	65 dB	80 dB	1.25 V	Over Current, Over Temperature, Short Circuit		TO-220-3

Description

General part information

LM317 Series

The LM117 and LM317-N series of adjustable 3-pin positive voltage regulators are capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators.

The LM117 and LM317-N offer full overload protection such as current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios that are difficult to achieve with standard 3-terminal regulators.