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3-pin and 4-pin 1.5-A adjustable positive voltage regulator

Availability: 67,056


Package | PIN: TO-220 (KCS) | 3
Temp: S (0 to 125)
Package qty | Carrier: 50 | TUBE
Qty Price
1-99 $0.44
100-249 $0.37
250-999 $0.25
1,000+ $0.18


  • 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

Texas Instruments  LM317KCSE3

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.