Version 4 SHEET 1 3000 1528 WIRE 912 1184 896 1184 WIRE 944 1056 928 1056 WIRE 992 1312 976 1312 WIRE 1008 1184 992 1184 WIRE 1072 928 1040 928 WIRE 1072 1056 1008 1056 WIRE 1072 1312 1056 1312 WIRE 1152 848 1152 768 WIRE 1184 1488 1184 1456 WIRE 1296 848 1296 816 WIRE 1408 1488 1408 1456 WIRE 1440 848 1440 816 WIRE 1552 816 1440 816 WIRE 1552 848 1552 816 WIRE 1552 928 1520 928 WIRE 1552 928 1552 912 WIRE 1552 1008 1552 928 WIRE 1552 1088 1520 1088 WIRE 1552 1088 1552 1072 WIRE 1648 816 1552 816 WIRE 1648 896 1648 880 WIRE 1680 992 1520 992 WIRE 1680 1184 1520 1184 WIRE 1728 768 1152 768 WIRE 1728 912 1728 768 WIRE 1728 1088 1552 1088 WIRE 1728 1088 1728 1008 WIRE 1728 1104 1728 1088 WIRE 1728 1232 1728 1200 WIRE 1824 1088 1728 1088 WIRE 1968 768 1728 768 WIRE 1968 800 1968 768 WIRE 1968 912 1968 880 WIRE 2000 1088 1904 1088 WIRE 2000 1264 1520 1264 WIRE 2000 1264 2000 1088 WIRE 2016 1088 2000 1088 WIRE 2112 1088 2096 1088 WIRE 2112 1328 1520 1328 WIRE 2112 1328 2112 1088 WIRE 2144 1392 1520 1392 WIRE 2144 1392 2144 1264 WIRE 2192 1088 2112 1088 WIRE 2192 1168 2192 1088 WIRE 2192 1264 2144 1264 WIRE 2192 1264 2192 1248 WIRE 2192 1280 2192 1264 WIRE 2192 1424 2192 1360 WIRE 2288 1088 2192 1088 WIRE 2288 1232 2288 1088 WIRE 2288 1424 2288 1296 WIRE 2384 1088 2288 1088 WIRE 2384 1216 2384 1088 WIRE 2384 1424 2384 1296 FLAG 896 1184 0 FLAG 928 1056 0 FLAG 2192 1424 0 FLAG 2384 1424 0 FLAG 2288 1424 0 FLAG 1968 912 0 FLAG 1728 1232 0 FLAG 976 1312 0 FLAG 1648 896 0 FLAG 1408 1488 0 FLAG 1184 1488 0 FLAG 2384 1088 OUT SYMBOL res 1008 1168 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R2 SYMATTR Value 10K SYMBOL res 2176 1152 R0 SYMATTR InstName R3 SYMATTR Value 20K SYMBOL res 2176 1264 R0 SYMATTR InstName R4 SYMATTR Value 20K SYMBOL res 2000 1072 M90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value .006 SYMBOL cap 1536 1072 M180 WINDOW 0 24 64 Left 0 WINDOW 3 24 8 Left 0 SYMATTR InstName C5 SYMATTR Value .22µ SYMBOL cap 1072 1168 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value 330p SYMBOL cap 1056 1296 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C2 SYMATTR Value 43p SYMBOL cap 1008 1040 R90 WINDOW 3 32 32 VTop 0 WINDOW 0 0 32 VBottom 0 SYMATTR Value .0001µ SYMATTR InstName C3 SYMBOL cap 2272 1232 R0 WINDOW 39 24 100 Left 0 SYMATTR SpiceLine x4 SYMATTR InstName C6 SYMATTR Value 180µ SYMATTR Value2 Rser=50m SYMBOL nmos 1680 912 R0 SYMATTR InstName M1 SYMATTR Value FDS6680A SYMBOL nmos 1680 1104 R0 WINDOW 0 -1 17 Right 0 WINDOW 3 38 105 Right 0 SYMATTR InstName M2 SYMATTR Value FDS6680A SYMBOL voltage 1968 784 R0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL polcap 1632 816 R0 WINDOW 3 25 56 Left 0 SYMATTR Value 4.7µ SYMATTR InstName C7 SYMBOL schottky 1536 848 R0 SYMATTR InstName D1 SYMATTR Value 1N5818 SYMBOL res 2368 1200 R0 SYMATTR InstName R5 SYMATTR Value .3 SYMBOL PowerProducts\\LTC1735 1296 1120 R0 WINDOW 0 -1 -149 Center 0 SYMATTR InstName U1 SYMBOL ind 1808 1104 R270 WINDOW 123 -49 49 VBottom 0 WINDOW 39 -22 52 VBottom 0 WINDOW 40 -79 52 VBottom 0 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR Value2 A=5u Lm=2m SYMATTR SpiceLine Lg=.11m N=5 SYMATTR SpiceLine2 Rser=10m Rpar=1K SYMATTR InstName L1 SYMATTR Value Hc=16 Bs=.44 Br=.1 TEXT 1640 1440 Left 0 !..tran .7m startup