Version 4 SHEET 1 3000 1528 WIRE 800 736 800 32 WIRE 800 768 800 736 WIRE 800 880 800 848 WIRE 896 416 880 416 WIRE 896 1136 880 1136 WIRE 944 288 928 288 WIRE 944 1008 928 1008 WIRE 992 416 976 416 WIRE 992 544 976 544 WIRE 992 1136 976 1136 WIRE 992 1264 976 1264 WIRE 1072 160 1040 160 WIRE 1072 288 1008 288 WIRE 1072 416 1056 416 WIRE 1072 544 1056 544 WIRE 1072 880 1040 880 WIRE 1072 1008 1008 1008 WIRE 1072 1136 1056 1136 WIRE 1072 1264 1056 1264 WIRE 1152 32 800 32 WIRE 1152 80 1152 32 WIRE 1152 736 800 736 WIRE 1152 800 1152 736 WIRE 1184 704 1184 688 WIRE 1184 1440 1184 1408 WIRE 1296 80 1296 48 WIRE 1296 800 1296 768 WIRE 1408 704 1408 688 WIRE 1408 1440 1408 1408 WIRE 1440 80 1440 48 WIRE 1440 800 1440 768 WIRE 1552 48 1440 48 WIRE 1552 80 1552 48 WIRE 1552 160 1520 160 WIRE 1552 160 1552 144 WIRE 1552 240 1552 160 WIRE 1552 320 1520 320 WIRE 1552 320 1552 304 WIRE 1552 768 1440 768 WIRE 1552 800 1552 768 WIRE 1552 880 1520 880 WIRE 1552 880 1552 864 WIRE 1552 960 1552 880 WIRE 1552 1040 1520 1040 WIRE 1552 1040 1552 1024 WIRE 1648 48 1552 48 WIRE 1648 128 1648 112 WIRE 1648 768 1552 768 WIRE 1648 848 1648 832 WIRE 1680 224 1520 224 WIRE 1680 416 1520 416 WIRE 1680 944 1520 944 WIRE 1680 1136 1520 1136 WIRE 1728 32 1152 32 WIRE 1728 144 1728 32 WIRE 1728 320 1552 320 WIRE 1728 320 1728 240 WIRE 1728 336 1728 320 WIRE 1728 464 1728 432 WIRE 1728 736 1152 736 WIRE 1728 864 1728 736 WIRE 1728 1040 1552 1040 WIRE 1728 1040 1728 960 WIRE 1728 1056 1728 1040 WIRE 1728 1184 1728 1152 WIRE 1824 320 1728 320 WIRE 1824 1040 1728 1040 WIRE 2000 320 1904 320 WIRE 2000 496 1520 496 WIRE 2000 496 2000 320 WIRE 2000 1040 1904 1040 WIRE 2000 1216 1520 1216 WIRE 2000 1216 2000 1040 WIRE 2016 320 2000 320 WIRE 2016 1040 2000 1040 WIRE 2112 320 2096 320 WIRE 2112 560 1520 560 WIRE 2112 560 2112 320 WIRE 2112 1040 2096 1040 WIRE 2112 1280 1520 1280 WIRE 2112 1280 2112 1040 WIRE 2144 624 1520 624 WIRE 2144 624 2144 496 WIRE 2144 1344 1520 1344 WIRE 2144 1344 2144 1216 WIRE 2192 320 2112 320 WIRE 2192 400 2192 320 WIRE 2192 496 2144 496 WIRE 2192 496 2192 480 WIRE 2192 512 2192 496 WIRE 2192 656 2192 592 WIRE 2192 1040 2112 1040 WIRE 2192 1120 2192 1040 WIRE 2192 1216 2144 1216 WIRE 2192 1216 2192 1200 WIRE 2192 1232 2192 1216 WIRE 2192 1376 2192 1312 WIRE 2288 320 2192 320 WIRE 2288 464 2288 320 WIRE 2288 656 2288 528 WIRE 2288 1040 2192 1040 WIRE 2288 1184 2288 1040 WIRE 2288 1376 2288 1248 WIRE 2384 320 2288 320 WIRE 2384 448 2384 320 WIRE 2384 656 2384 528 WIRE 2384 1040 2288 1040 WIRE 2384 1168 2384 1040 WIRE 2384 1376 2384 1248 FLAG 880 1136 0 FLAG 928 1008 0 FLAG 2192 1376 0 FLAG 2384 1376 0 FLAG 2288 1376 0 FLAG 800 880 0 FLAG 1728 1184 0 FLAG 976 1264 0 FLAG 1648 848 0 FLAG 1408 1440 0 FLAG 1184 1440 0 FLAG 2384 1040 OUT FLAG 880 416 0 FLAG 928 288 0 FLAG 2192 656 0 FLAG 2384 656 0 FLAG 2288 656 0 FLAG 1728 464 0 FLAG 976 544 0 FLAG 1648 128 0 FLAG 1408 704 0 FLAG 1184 704 0 SYMBOL res 992 1120 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R2 SYMATTR Value 10K SYMBOL res 2176 1104 R0 SYMATTR InstName R3 SYMATTR Value 20K SYMBOL res 2176 1216 R0 SYMATTR InstName R4 SYMATTR Value 20K SYMBOL res 2000 1024 M90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value .006 SYMBOL cap 1536 1024 M180 WINDOW 0 24 64 Left 0 WINDOW 3 24 8 Left 0 SYMATTR InstName C5 SYMATTR Value .22µ SYMBOL cap 1056 1120 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value 330p SYMBOL cap 1056 1248 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C2 SYMATTR Value 43p SYMBOL cap 1008 992 R90 WINDOW 3 32 32 VTop 0 WINDOW 0 0 32 VBottom 0 SYMATTR Value .0001µ SYMATTR InstName C3 SYMBOL cap 2272 1184 R0 WINDOW 39 24 100 Left 0 SYMATTR SpiceLine x4 SYMATTR InstName C6 SYMATTR Value 180µ SYMATTR Value2 Rser=50m SYMBOL nmos 1680 864 R0 SYMATTR InstName M1 SYMATTR Value FDS6680A SYMBOL nmos 1680 1056 R0 WINDOW 0 -1 17 Right 0 WINDOW 3 38 105 Right 0 SYMATTR InstName M2 SYMATTR Value FDS6680A SYMBOL voltage 800 752 R0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL polcap 1632 768 R0 WINDOW 3 25 56 Left 0 SYMATTR Value 4.7µ SYMATTR InstName C7 SYMBOL schottky 1536 800 R0 SYMATTR InstName D1 SYMATTR Value 1N5818 SYMBOL res 2368 1152 R0 SYMATTR InstName R5 SYMATTR Value .3 SYMBOL PowerProducts\\LTC1735 1296 1072 R0 WINDOW 0 -1 -149 Center 0 SYMATTR InstName U1 SYMBOL ind 1808 1056 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 SYMBOL res 992 400 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R6 SYMATTR Value 10K SYMBOL res 2176 384 R0 SYMATTR InstName R7 SYMATTR Value 20K SYMBOL res 2176 496 R0 SYMATTR InstName R8 SYMATTR Value 20K SYMBOL res 2000 304 M90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R9 SYMATTR Value .006 SYMBOL cap 1536 304 M180 WINDOW 0 24 64 Left 0 WINDOW 3 24 8 Left 0 SYMATTR InstName C1 SYMATTR Value .22µ SYMBOL cap 1056 400 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C8 SYMATTR Value 330p SYMBOL cap 1056 528 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C9 SYMATTR Value 43p SYMBOL cap 1008 272 R90 WINDOW 3 32 32 VTop 0 WINDOW 0 0 32 VBottom 0 SYMATTR Value .0001µ SYMATTR InstName C10 SYMBOL cap 2272 464 R0 WINDOW 39 24 100 Left 0 SYMATTR SpiceLine x4 SYMATTR InstName C11 SYMATTR Value 180µ SYMATTR Value2 Rser=50m SYMBOL nmos 1680 144 R0 SYMATTR InstName M3 SYMATTR Value FDS6680A SYMBOL nmos 1680 336 R0 WINDOW 0 -1 17 Right 0 WINDOW 3 38 105 Right 0 SYMATTR InstName M4 SYMATTR Value FDS6680A SYMBOL polcap 1632 48 R0 WINDOW 3 25 56 Left 0 SYMATTR Value 4.7µ SYMATTR InstName C12 SYMBOL schottky 1536 80 R0 SYMATTR InstName D2 SYMATTR Value 1N5818 SYMBOL res 2368 432 R0 SYMATTR InstName R10 SYMATTR Value .3 SYMBOL PowerProducts\\LTC1735 1296 352 R0 WINDOW 0 -1 -149 Center 0 SYMATTR InstName U2 SYMBOL ind 1808 336 R270 WINDOW 40 -28 57 VBottom 0 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR SpiceLine2 Rpar=1K SYMATTR InstName L2 SYMATTR Value 1.3µ TEXT 1640 1392 Left 0 !..tran .7m startup