Version 4 SHEET 1 1848 836 WIRE 1024 64 400 64 WIRE 224 80 128 80 WIRE 320 80 224 80 WIRE 816 80 320 80 WIRE 128 96 128 80 WIRE 224 112 224 80 WIRE 320 144 320 80 WIRE 400 160 400 64 WIRE 416 160 400 160 WIRE 816 160 816 80 WIRE 816 160 800 160 WIRE 128 192 128 176 WIRE 224 192 224 176 WIRE 320 256 320 224 WIRE 416 256 320 256 WIRE 848 256 800 256 WIRE 896 256 848 256 WIRE 1024 256 1024 64 WIRE 1024 256 976 256 WIRE 1072 256 1024 256 WIRE 1200 256 1072 256 WIRE 848 272 848 256 WIRE 1072 272 1072 256 WIRE 1200 272 1200 256 WIRE 336 352 320 352 WIRE 416 352 400 352 WIRE 848 352 848 336 WIRE 848 352 800 352 WIRE 848 368 848 352 WIRE 1072 368 1072 336 WIRE 1200 368 1200 352 WIRE 416 448 400 448 WIRE 816 448 800 448 WIRE 848 448 848 432 WIRE 848 448 816 448 WIRE 1024 448 1024 256 WIRE 416 544 384 544 WIRE 1024 544 1024 528 WIRE 1024 544 800 544 WIRE 1024 560 1024 544 WIRE 416 640 400 640 WIRE 864 640 800 640 WIRE 944 640 928 640 WIRE 1024 656 1024 640 WIRE 528 720 528 704 WIRE 688 720 688 704 WIRE 384 752 384 544 WIRE 816 752 816 448 WIRE 816 752 384 752 FLAG 528 720 0 FLAG 688 720 0 FLAG 848 512 0 FLAG 1200 368 0 FLAG 1024 656 0 FLAG 1072 368 0 FLAG 128 192 0 FLAG 320 352 0 FLAG 224 192 0 FLAG 128 80 IN FLAG 1200 256 OUT FLAG 944 640 0 FLAG 400 448 0 SYMBOL res 1008 432 R0 SYMATTR InstName R1 SYMATTR Value 30.1K SYMBOL res 1008 544 R0 SYMATTR InstName R2 SYMATTR Value 9.53K SYMBOL schottky 832 432 M180 WINDOW 0 38 40 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value CMDSH2-3 SYMBOL cap 832 448 R0 WINDOW 0 26 10 Left 2 WINDOW 3 25 49 Left 2 SYMATTR InstName C1 SYMATTR Value 4.7µ SYMBOL ind 880 272 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value .8µ SYMBOL polcap 1056 272 R0 SYMATTR InstName C2 SYMATTR Value 200µ SYMBOL VOLTAGE 128 80 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap 400 336 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .001µ SYMBOL cap 832 272 R0 WINDOW 0 36 15 Left 2 WINDOW 3 29 53 Left 2 SYMATTR InstName C4 SYMATTR Value .22µ SYMBOL polcap 208 112 R0 SYMATTR InstName C5 SYMATTR Value 47µ SYMBOL cap 864 656 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -28 31 VBottom 2 SYMATTR InstName C6 SYMATTR Value 1500p SYMATTR SpiceLine Rser=11.3K SYMBOL res 304 128 R0 SYMATTR InstName R3 SYMATTR Value 187K SYMBOL PowerProducts\\LTC3608 608 400 R0 SYMATTR InstName U1 SYMBOL res 1184 256 R0 SYMATTR InstName Rload SYMATTR Value .3125 TEXT 1016 728 Left 2 !.tran 2.2m startup