The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overload protection, and safe operating area protection. Overload protection remains functional even if the ADJUST terminal is disconnected.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LM317DCY | SOT-223 (4) | 6.50 mm × 3.50 mm |
LM317KCS | TO-220 (3) | 10.16 mm × 9.15 mm |
LM317KCT | TO-220 (3) | 10.16 mm × 8.59 mm |
LM317KTT | TO-263 (3) | 10.16 mm × 9.01 mm |
Changes from X Revision (September 2016) to Y Revision
Changes from W Revision (January 2015) to X Revision
Changes from V Revision (February 2013) to W Revision
IOUT | PARAMETER | LM317 | LM317-N | LM317A | LM317HV | UNIT |
---|---|---|---|---|---|---|
1.5 A | Input voltage range | 4.25 - 40 | 4.25 - 40 | 4.25 - 40 | 4.25 - 60 | V |
Load regulation accuracy | 1.5 | 1.5 | 1 | 1.5 | % | |
PSRR (120 Hz) | 64 | 80 | 80 | 65 | dB | |
Recommended operating temperature | 0 to 125 | 0 to 125 | –40 to 125 | 0 to 125 | °C | |
TO-220 (NDE) TJA | 23.5 | 23.2 | 23.3 | 23 | °C/W | |
TO-200 (KCT) TJA | 37.9 | N/A | N/A | °C/W | ||
TO-252 TJA | N/A | 54 | 54 | °C/W | ||
TO-263 TJA | 38 | 41 | N/A | °C/W | ||
SOT-223 TJA | 66.8 | 59.6 | 59.6 | °C/W | ||
TO-92 TJA | N/A | 186 | 186 | °C/W | ||
0.5 A | LM317M | |||||
Input voltage range | 3.75 - 40 | V | ||||
Load regulation accuracy | 1.5 | % | ||||
PSRR (120 Hz) | 80 | dB | ||||
Recommended operating temperature | -40 - 125 | °C | ||||
SOT-223 TJA | 60.2 | °C/W | ||||
TO-252 TJA | 56.9 | °C/W | ||||
0.1 A | LM317L | LM317L-N | ||||
Input voltage range | 3.75 - 40 | 4.25 - 40 | V | |||
Load regulation accuracy | 1 | 1.5 | % | |||
PSRR (120 Hz) | 62 | 80 | dB | |||
Recommended operating temperature | –40 to 125 | –40 to 125 | °C | |||
SOT-23 TJA | 167.8 | N/A | °C/W | |||
SO-8 TJA | N/A | 165 | °C/W | |||
DSBGA TJA | N/A | 290 | °C/W | |||
TO-92 TJA | N/A | 180 | °C/W |