Version 4 SHEET 1 2608 1256 WIRE 816 -448 720 -448 WIRE 912 -448 816 -448 WIRE 928 -448 912 -448 WIRE 1040 -448 1008 -448 WIRE 1152 -448 1040 -448 WIRE 1344 -448 1248 -448 WIRE 1440 -448 1344 -448 WIRE 1536 -448 1440 -448 WIRE 1664 -448 1536 -448 WIRE 1792 -448 1664 -448 WIRE 720 -432 720 -448 WIRE 1536 -432 1536 -448 WIRE 1664 -432 1664 -448 WIRE 1792 -432 1792 -448 WIRE 2048 -416 1840 -416 WIRE 2160 -416 2128 -416 WIRE 912 -400 912 -448 WIRE 1040 -400 1040 -448 WIRE 928 -384 912 -400 WIRE 1024 -384 1040 -400 WIRE 1856 -368 1840 -368 WIRE 1232 -352 1232 -400 WIRE 1232 -352 1136 -352 WIRE 1440 -352 1440 -448 WIRE 720 -336 720 -352 WIRE 928 -336 928 -384 WIRE 1024 -336 1024 -384 WIRE 1136 -336 1136 -352 WIRE 1232 -336 1232 -352 WIRE 1344 -336 1344 -448 WIRE 1536 -336 1536 -368 WIRE 1664 -336 1664 -352 WIRE 1792 -336 1792 -352 WIRE 816 -256 816 -448 WIRE 864 -256 816 -256 WIRE 1440 -240 1440 -288 WIRE 1440 -240 1376 -240 WIRE 1440 -144 1376 -144 WIRE 1488 -144 1440 -144 WIRE 1568 -144 1552 -144 WIRE 1440 -128 1440 -144 WIRE 1440 -32 1440 -48 WIRE 1440 -32 1376 -32 WIRE 784 48 768 48 WIRE 864 48 848 48 WIRE 976 128 976 112 WIRE 1120 128 1120 112 WIRE 976 224 976 208 FLAG 720 -336 0 FLAG 976 224 0 FLAG 1536 -336 0 FLAG 1664 -336 0 FLAG 720 -448 IN FLAG 1792 -448 OUT FLAG 1120 128 0 FLAG 768 48 0 FLAG 1568 -144 0 FLAG 1792 -336 0 FLAG 1856 -368 0 FLAG 2160 -416 0 SYMBOL voltage 720 -448 R0 SYMATTR InstName V1 SYMATTR Value 135 SYMBOL voltage 976 112 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 3 13 100 Left 2 SYMATTR Value PULSE(0 3.3 50m 10n 10n 50m 100m 1) SYMATTR InstName V2 SYMBOL nmos 1152 -400 R270 WINDOW 0 50 46 VTop 2 WINDOW 3 -12 78 VLeft 2 SYMATTR InstName M1 SYMATTR Value BSC320N20NS3 SYMBOL cap 1520 -432 R0 WINDOW 3 39 36 Left 2 WINDOW 39 20 65 Left 2 SYMATTR Value 1µ SYMATTR SpiceLine Rser=7m SYMATTR InstName C1 SYMBOL res 1648 -448 R0 SYMATTR InstName R1 SYMATTR Value 13.5 SYMBOL cap 1424 -352 R0 SYMATTR InstName C2 SYMATTR Value 0.1µ SYMBOL res 1424 -144 R0 SYMATTR InstName R3 SYMATTR Value 100K SYMBOL cap 848 32 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 1n SYMBOL res 912 -432 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 5m SYMBOL cap 1488 -128 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C4 SYMATTR Value 1µ SYMBOL voltage 2032 -416 R270 WINDOW 3 -32 56 VBottom 2 WINDOW 0 32 56 VTop 2 SYMATTR Value PWL(0 0 60m 0 +1u 1 +10m 1 +1u 0) SYMATTR InstName V4 SYMBOL sw 1792 -336 R180 WINDOW 0 -17 96 Right 2 WINDOW 3 -16 15 Right 2 SYMATTR InstName S1 SYMBOL LTC7000-1 1120 -112 R0 SYMATTR InstName U1 TEXT 1512 128 Left 2 !.tran 100m startup\n.model SW SW(Ron=100m Roff=1G Vt=0.5 Vh=-0.3)