LT137A pdf datasheet (Negative Adjustable Regulator)：The LT137A/LT337A series are adjustable 3-terminal negative?voltage regulators capable of supplying in excess-?1.5Aover a -1.2 to -37Voutput voltage range.?They are exceptionally easy to use and require only?two external resistors to set the output voltage. Further,both line and load regulation are better than?standard fixed regulators. Also, LM137 regulators?are supplied in standard transistor packages which?are easily mounted and handled. In addition to?higher performance than fixed regulators, the?LM137 series offer full overload protection available?only in integrated circuits. Included on the chip are?current limit, thermal overload protection and safe?area protection. All overload protection circuitry remains?fully functional even ifthe adjustment terminal?is disconnected.