* *LM337 negative voltage regulator *Connections Input Adj. Output .subckt LM337 8 1 19 .MODEL QN NPN (BF=50 TF=1N CJC=1P) .MODEL QPOUT PNP (BF=50 TF=1N RE=.2 CJC=1P) .MODEL QP PNP CJC=1P TF=2N .MODEL DN D .MODEL D2 D BV=12 IBV=100U R10 25 6 1K Q3 8 17 16 QPOUT Q4 8 25 17 QP R18 19 17 250 R19 19 16 .3 G1 8 6 1 18 .1 C7 6 2 .04U R24 2 8 100 I_ADJ 0 1 65U R26 8 25 200K Q5 25 4 19 QP R27 16 4 200 R28 7 4 7K D1 8 7 D2 D2 8 6 DN V1 18 19 1.25 .ENDS ** ============================================= Version 4 SymbolTyp e CELL RECTANGLE Normal 64 48 -64 -48 TEXT 0 -29 Center 0 LM317 SYMATTR Value LM317 SYMATTR Prefix X SYMATTR Value2 LM317 SYMATTR Description LM317 voltage regulator SYMATTR ModelFile LM317.sub PIN -64 0 LEFT 8 PINATTR PinName IN PINATTR SpiceOrder 1 PIN 0 48 BOTTOM 8 PINATTR PinName ADJ PINATTR SpiceOrder 2 PIN 64 0 RIGHT 8 PINATTR PinName OUT PINATTR SpiceOrder 3