Version 4
SHEET 1 1848 740
WIRE 96 -80 0 -80
WIRE 256 -80 96 -80
WIRE 416 -80 256 -80
WIRE 0 -64 0 -80
WIRE 256 -64 256 -80
WIRE 96 0 96 -80
WIRE 112 0 96 0
WIRE 416 0 416 -80
WIRE 416 0 400 0
WIRE 0 32 0 16
WIRE 112 80 96 80
WIRE 416 80 400 80
WIRE -96 160 -112 160
WIRE 0 160 -16 160
WIRE 112 160 64 160
WIRE 32 240 16 240
WIRE 112 240 96 240
WIRE 112 320 96 320
WIRE 432 320 400 320
WIRE -16 400 -32 400
WIRE 80 400 64 400
WIRE 112 400 80 400
WIRE 432 400 432 384
WIRE 432 400 400 400
WIRE 480 400 432 400
WIRE 576 400 560 400
WIRE 688 400 576 400
WIRE 784 400 688 400
WIRE 880 400 784 400
WIRE 688 416 688 400
WIRE 784 416 784 400
WIRE 880 416 880 400
WIRE 0 480 -32 480
WIRE 80 480 64 480
WIRE 112 480 80 480
WIRE 576 480 400 480
WIRE 688 480 688 464
WIRE 688 480 576 480
WIRE 576 496 576 480
WIRE 784 512 784 480
WIRE 880 512 880 496
WIRE 304 560 304 544
WIRE 576 592 576 576
FLAG 304 560 0
FLAG -32 400 0
FLAG 0 32 0
FLAG 784 512 0
FLAG 576 592 0
FLAG 880 512 0
FLAG 880 400 OUT
FLAG 0 -80 IN
FLAG 96 80 0
FLAG 416 80 0
FLAG -32 480 0
FLAG -112 160 0
FLAG 16 240 0
FLAG 80 480 SS
FLAG 80 400 RT
FLAG 96 320 0
SYMBOL res 80 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 17.8K
SYMBOL voltage 0 -80 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL ind 464 416 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 0.56µ
SYMBOL cap 768 416 R0
WINDOW 0 40 17 Left 2
WINDOW 123 24 80 Left 2
SYMATTR InstName C4
SYMATTR Value2 X2
SYMATTR Value 220µ
SYMBOL res 560 384 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res 560 480 R0
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL cap 672 400 R0
WINDOW 0 32 17 Left 2
SYMATTR InstName C5
SYMATTR Value 47p
SYMBOL res 864 400 R0
WINDOW 123 36 100 Left 2
SYMATTR InstName Rload
SYMATTR Value 12
SYMATTR Value2 m=100
SYMBOL cap 64 496 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL cap 64 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 150p
SYMBOL res 0 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 11K
SYMBOL cap 416 320 R0
WINDOW 0 32 17 Left 2
WINDOW 3 32 47 Left 2
SYMATTR InstName C2
SYMATTR Value 47n
SYMBOL cap 96 256 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 1µ
SYMBOL LT8642-1 256 240 R0
SYMATTR InstName U2
TEXT 176 616 Left 2 !.tran 1m startup