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1.5-A, 40-V, adjustable linear voltage regulator

Inventory: 19,832

Download data sheet for LM317
  |   View additional information for LM317

Same as: LM317DCYG3  This part number is identical to the part number listed above. You can only order quantities of the part number listed above.

Packaging information

Package | Pins SOT-223 (DCY) | 4
Operating temperature range (°C) S (0 to 125)
Package qty | Carrier: 80 | TUBE
View more packaging information

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • Output voltage range adjustable
    from 1.25 V to 37 V
  • Output current greater than 1.5 A
  • Internal short-circuit current limiting
  • Thermal overload protection
  • Output safe-area compensation

All trademarks are the property of their respective owners.


The LM317 device is an adjustable three-terminal positive-voltage regulator capable ofsupplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only twoexternal resistors to set the output voltage. The device features a typical line regulation of0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overloadprotection, and safe operating area protection. Overload protection remains functional even if theADJUST terminal is disconnected.

Qty Price
1-99 $0.47
100-249 $0.36
250-999 $0.27
1,000+ $0.19

Alternative carriers

Part number LM317DCYR
Package qty | Carrier 2,500 | LARGE T&R
Custom reel may be available
Inventory 503,221
Qty | Price (USD) 1ku | $0.16