
National ->Texas Instruments
General Description
The LM137HV/LM337HV are adjustable 3-terminal negative voltage regulators capable of supplying in excess of −1.5A over an output voltage range of −1.2V to −47V. These regu lators are exceptionally easy to apply, requiring only 2 exter nal 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 LM137HV series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads.
FEATUREs
Output voltage adjustable from −1.2V to −47V
1.5A output current guaranteed, −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 short circuit protected