Part Number : LM317
Function : Three-Terminal Adjustable Regulator
Maker : Texas Instruments

Pinouts :
LM317 datasheet

Description : Description
The LM137/LM337-N are adjustable 3-terminal negative voltage regulators capable of supplying in excess of −1.5A over an output voltage range of −1.2V to −37V. These regulators are exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads.

The LM137/LM337-N serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137/LM337-N are ideal complements to the LM117/LM317 adjustable positive regulators.


Output Voltage Adjustable from −1.2V to −37V
1.5A Output Current Specified, −55°C to +150°C
Line Regulation Typically 0.01%/V
Load Regulation Typically 0.3%
Excellent Thermal Regulation, 0.002%/W
77 dB Ripple Rejection
Excellent Rejection of Thermal Transients
50 ppm/°C Temperature Coefficient
Temperature-independent Current Limit
Internal Thermal Overload Protection
P+ Product Enhancement Tested
Standard 3-lead Transistor Package
Output is Short Circuit Protected

Datasheet PDF Download :
LM317 pdf

Others datasheet of same file : LM117H,LM117H/NOPB,LM117K,LM117KSTEEL,LM117KSTEEL/NOPB
2015/01/28 13:52 2015/01/28 13:52

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