描述 The LM137 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of 1.5 A over an output voltage range of ?37 V to ?1.2 V. 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 serve 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.特性SMD 5962-99517 Available TID Qualified to 30 krad(Si) Output Voltage Adjustable from ?37 V to ?1.2 V 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 Standard 3-lead Transistor Package Output is Short Circuit Protected