LM137JAN-SP Space Grade 1.5A Adjustable Output Negative Voltage Regulator / LDO | TI.com

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Space Grade 1.5A Adjustable Output Negative Voltage Regulator / LDO


Recommended alternative parts

  • LM137JAN  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 


The LM137 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of −1.5A over an output voltage range of −37V to −1.2V. 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 serves a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137 are ideal complements to the LM117 adjustable positive regulators.


  • Output Voltage Adjustable from −37V to −1.2V
  • 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
  • Standard 3-lead Transistor Package
  • Output is Short Circuit Protected

All trademarks are the property of their respective owners.


Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG) Radiation, SEL (MeV.cm2/mg) Radiation, TID (Typ) (krad)
LM137JAN-SP Order now Adjustable Output
Negative Output    
1.5     -4.2     -40     -1.2     -37     0     TO | 2         1     -55 to 150     137     1110     Space     30     4     3000     0.065     2TO: 989 mm2: 25.4 x 38.938 (TO | 2)     Bipolar      
LM137QML-SP Samples not available Adjustable Output
Negative Output    
1.5     -4.2     -40     -1.2     -37     0     TO | 3         1     -55 to 125     137     1110     Space     30     4     3000     0.065     3TO: 92 mm2: 9.14 x 10.03 (TO | 3)     Bipolar     30