DESCRIPTION
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. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. PIN CONNECTIONS TO-3 (bottom view) TO-39 (bottom view) TO-220 TO-39 TO-220 (front view) 1 - Adj 2 - Output 3 - Input 1 - Output 2 - Adj Case is input 1 - Adj 2 - Output 3 - input Heatsink surface connected to input March 1993 1/14 LM137-LM237-LM337 ABSOLUTE MAXIMUM RATING Symbol VI - VO IO Toper Input Output Voltage Differential Output Current TO-220/TO-3 TO-39 LM137 LM237 LM337 Tstg Ptot Parameter Value 40 1.5 0.5 -55 to 150 -25 to 150 0 to 125 -65 to 150 Internally Limited oC oC Unit V A W THERMAL CHARACTERISTICS Symbol Parameter TO-3 TO-220 TO-39 Rthj-amb Junction-ambient Thermal Resistance TO-3 TO-220 TO-39 Typ.
STMicroelectronics
