Version 4 SHEET 1 9052 3716 WIRE 5744 -1584 5680 -1584 WIRE 5856 -1584 5808 -1584 WIRE 5136 -1488 4992 -1488 WIRE 5328 -1488 5216 -1488 WIRE 5472 -1488 5424 -1488 WIRE 5504 -1488 5472 -1488 WIRE 5600 -1488 5584 -1488 WIRE 5680 -1488 5680 -1584 WIRE 5680 -1488 5600 -1488 WIRE 5712 -1488 5680 -1488 WIRE 5856 -1488 5856 -1584 WIRE 5856 -1488 5808 -1488 WIRE 5968 -1488 5856 -1488 WIRE 6032 -1488 5968 -1488 WIRE 6128 -1488 6032 -1488 WIRE 6240 -1488 6128 -1488 WIRE 6032 -1472 6032 -1488 WIRE 6128 -1472 6128 -1488 WIRE 6240 -1472 6240 -1488 WIRE 6560 -1456 6288 -1456 WIRE 6688 -1456 6640 -1456 WIRE 6304 -1408 6288 -1408 WIRE 5792 -1392 5792 -1440 WIRE 6032 -1376 6032 -1408 WIRE 6128 -1376 6128 -1392 WIRE 6240 -1376 6240 -1392 WIRE 5600 -1344 5600 -1488 WIRE 5648 -1344 5600 -1344 WIRE 5968 -1344 5968 -1488 WIRE 5968 -1344 5936 -1344 WIRE 5472 -1264 5472 -1488 WIRE 5648 -1264 5472 -1264 WIRE 5408 -1184 5408 -1440 WIRE 5648 -1184 5408 -1184 WIRE 6000 -1184 5936 -1184 WIRE 6144 -1184 6080 -1184 WIRE 6144 -1152 6144 -1184 WIRE 5648 -1120 5632 -1120 WIRE 5792 -1040 5792 -1056 WIRE 6144 -1040 6144 -1072 WIRE 4992 -976 4992 -1488 WIRE 4992 -880 4992 -896 FLAG 5792 -1040 0 FLAG 4992 -880 0 FLAG 6144 -1040 0 FLAG 6032 -1376 0 FLAG 6128 -1376 0 FLAG 6304 -1408 0 FLAG 6240 -1376 0 FLAG 6688 -1456 0 FLAG 5632 -1120 0 SYMBOL res 5488 -1472 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 25m SYMBOL cap 6016 -1472 R0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL res 6112 -1488 R0 SYMATTR InstName R2 SYMATTR Value 10 SYMBOL pmos 5328 -1440 R270 WINDOW 0 58 49 VTop 2 WINDOW 3 -8 61 VLeft 2 SYMATTR InstName Q1 SYMATTR Value FDS4953 SYMBOL ind 5120 -1472 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 WINDOW 39 -16 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 1µ SYMATTR SpiceLine Rser=150m SYMBOL voltage 6144 -1168 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value 5 SYMATTR InstName V1 SYMBOL res 6096 -1200 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 1K SYMBOL nmos 5712 -1440 R270 WINDOW 0 57 42 VTop 2 WINDOW 3 -10 67 VLeft 2 SYMATTR InstName Q2 SYMATTR Value Si4892DY SYMBOL diode 5808 -1600 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value Davalanche SYMBOL voltage 4992 -992 R0 WINDOW 123 24 146 Left 2 WINDOW 39 24 125 Left 2 SYMATTR Value PWL(0u 0 100m 0 +1u 20 150m 20 +10u 0 200m 0 +1u -20 250m -20 +10u 0 400m 0 +1u 5 800m 5 +1u 20 900m 20 +10u 5) SYMATTR InstName V3 SYMBOL sw 6240 -1376 R180 WINDOW 0 -19 108 Right 2 WINDOW 3 -35 1 Right 2 SYMATTR InstName S1 SYMATTR Value SHORT SYMBOL voltage 6544 -1456 R270 WINDOW 123 -74 56 VBottom 2 WINDOW 39 -53 56 VBottom 2 WINDOW 3 -32 56 VBottom 2 WINDOW 0 32 56 VTop 2 SYMATTR Value PWL(0u 0 1200m 0 +5n 1 1201m 1 +5n 0) SYMATTR InstName V4 SYMBOL LTC4361-1 5792 -1216 R0 SYMATTR InstName U1 TEXT 5320 -1024 Left 2 !.tran 1500m startup\n.model SHORT SW (Ron=1 Roff=1T Vt=0.5 Vh=-0.4)\n.model Davalanche D (Vfwd=0.7 Vrev=32 Ron=0.1 Rrev=0.1 epsilon=.1 revepsilon=.1) TEXT 5768 -1640 Bottom 2 ;To model avalanche behavior of NFET