Version 4 SHEET 1 1508 1924 WIRE -736 432 -848 432 WIRE -384 432 -736 432 WIRE 176 432 -384 432 WIRE -848 448 -848 432 WIRE -528 448 -576 448 WIRE -240 448 -528 448 WIRE 32 448 -240 448 WIRE -528 464 -528 448 WIRE 32 480 32 448 WIRE -736 496 -736 432 WIRE -384 496 -384 432 WIRE -240 496 -240 448 WIRE -96 496 -96 480 WIRE 176 496 176 432 WIRE -848 544 -848 528 WIRE -528 544 -528 528 WIRE -464 576 -688 576 WIRE 128 576 -16 576 WIRE -576 592 -576 448 WIRE -736 672 -736 592 WIRE -688 672 -736 672 WIRE -576 672 -576 656 WIRE -576 672 -624 672 WIRE -464 672 -576 672 WIRE 32 672 32 544 WIRE 32 672 -16 672 WIRE 64 672 32 672 WIRE 176 672 176 592 WIRE 176 672 128 672 WIRE -880 768 -896 768 WIRE -768 768 -800 768 WIRE -736 768 -736 672 WIRE -736 768 -768 768 WIRE -464 768 -736 768 WIRE 176 768 176 672 WIRE 176 768 -16 768 WIRE 224 768 176 768 WIRE 240 768 224 768 WIRE 336 768 320 768 WIRE -736 784 -736 768 WIRE 176 784 176 768 WIRE -464 864 -688 864 WIRE 128 864 -16 864 WIRE -736 896 -736 880 WIRE 176 896 176 880 WIRE -768 960 -768 768 WIRE -672 960 -768 960 WIRE -544 960 -592 960 WIRE -464 960 -544 960 WIRE 32 960 -16 960 WIRE 96 960 32 960 WIRE 224 960 224 768 WIRE 224 960 176 960 WIRE -544 976 -544 960 WIRE 32 976 32 960 WIRE -896 1056 -896 768 WIRE -544 1056 -544 1040 WIRE -544 1056 -896 1056 WIRE -464 1056 -544 1056 WIRE 32 1056 32 1040 WIRE 32 1056 -16 1056 WIRE 336 1056 336 768 WIRE 336 1056 32 1056 WIRE -944 1152 -1088 1152 WIRE -896 1152 -896 1056 WIRE -896 1152 -944 1152 WIRE -832 1152 -896 1152 WIRE -704 1152 -752 1152 WIRE -464 1152 -704 1152 WIRE 192 1152 -16 1152 WIRE 224 1152 192 1152 WIRE 336 1152 336 1056 WIRE 336 1152 304 1152 WIRE 432 1152 336 1152 WIRE -1088 1168 -1088 1152 WIRE -896 1168 -896 1152 WIRE 336 1168 336 1152 WIRE 432 1168 432 1152 WIRE -704 1184 -704 1152 WIRE 192 1184 192 1152 WIRE -560 1248 -592 1248 WIRE -464 1248 -496 1248 WIRE 16 1248 -16 1248 WIRE 112 1248 80 1248 WIRE -1088 1264 -1088 1248 WIRE -896 1264 -896 1232 WIRE 336 1264 336 1232 WIRE 432 1264 432 1248 WIRE -704 1280 -704 1264 WIRE 192 1280 192 1264 WIRE -640 1344 -656 1344 WIRE -464 1344 -576 1344 WIRE 96 1344 -16 1344 WIRE 176 1344 160 1344 WIRE -464 1440 -480 1440 WIRE 0 1440 -16 1440 WIRE -944 1536 -944 1152 WIRE -560 1536 -944 1536 WIRE -464 1536 -480 1536 WIRE 16 1536 -16 1536 WIRE 96 1536 80 1536 WIRE -384 1632 -384 1616 WIRE -240 1632 -240 1616 WIRE -96 1632 -96 1616 WIRE -240 1728 -240 1712 FLAG -96 1632 0 FLAG -528 544 0 FLAG -736 896 0 FLAG -656 1344 0 FLAG -592 1248 0 FLAG -896 1264 0 FLAG -704 1280 0 FLAG -1088 1152 OUT1 FLAG -848 544 0 FLAG 176 896 0 FLAG 336 1264 0 FLAG 192 1280 0 FLAG 432 1152 OUT2 FLAG -1088 1264 0 FLAG 432 1264 0 FLAG -384 1632 0 FLAG 96 1536 0 FLAG -848 432 IN FLAG 176 1344 0 FLAG 112 1248 0 FLAG -240 1728 0 FLAG -96 480 0 SYMBOL NMOS -688 496 M0 WINDOW 0 26 -7 Right 2 WINDOW 3 35 104 Right 2 SYMATTR InstName Q1 SYMATTR Value FDS6680A SYMBOL nmos -688 784 M0 WINDOW 0 -9 30 Right 2 WINDOW 3 14 105 Right 2 SYMATTR InstName Q2 SYMATTR Value FDS6680A SYMBOL cap -688 656 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL schottky -592 592 R0 WINDOW 3 31 61 Left 2 WINDOW 0 34 16 Left 2 SYMATTR Value 1N5817 SYMATTR InstName D1 SYMBOL cap -544 464 R0 SYMATTR InstName C2 SYMATTR Value 4.7µ SYMBOL ind -784 784 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 2.2µ SYMATTR SpiceLine Rser=10m Rpar=2K SYMBOL cap -560 976 R0 WINDOW 3 26 58 Left 2 SYMATTR Value .1µ SYMATTR InstName C3 SYMBOL res -720 1168 R0 SYMATTR InstName R1 SYMATTR Value 20K SYMBOL res -848 1168 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 63.4K SYMBOL cap -912 1168 R0 SYMATTR InstName C4 SYMATTR Value 147µ SYMBOL cap -496 1232 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 60 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K SYMBOL cap -576 1328 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value .0005µ SYMBOL VOLTAGE -848 432 R0 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL nmos 128 496 R0 SYMATTR InstName Q3 SYMATTR Value FDS6680A SYMBOL nmos 128 784 R0 WINDOW 3 26 101 Right 2 WINDOW 0 54 31 Left 2 SYMATTR Value FDS6680A SYMATTR InstName Q4 SYMBOL cap 128 656 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value .1µ SYMBOL schottky 16 480 R0 SYMATTR InstName D3 SYMATTR Value 1N5817 SYMBOL cap 16 976 R0 SYMATTR InstName C8 SYMATTR Value .1µ SYMBOL res 176 1168 R0 SYMATTR InstName R5 SYMATTR Value 20K SYMBOL res 320 1168 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 43.2K SYMBOL cap 320 1168 R0 SYMATTR InstName C9 SYMATTR Value 147µ SYMBOL ind 224 784 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 2.2µ SYMATTR SpiceLine Rser=10m Rpar=2K SYMBOL RES -576 1552 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R9 SYMATTR Value 20K SYMBOL cap 16 1552 R270 WINDOW 3 0 32 VBottom 2 WINDOW 39 -30 31 VBottom 2 WINDOW 0 32 32 VTop 2 SYMATTR Value .002µ SYMATTR SpiceLine Rser=10K SYMATTR InstName C12 SYMBOL RES -1104 1152 R0 SYMATTR InstName Rload1 SYMATTR Value 1 SYMBOL res 416 1152 R0 SYMATTR InstName Rload2 SYMATTR Value 1 SYMBOL cap 16 1232 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 60 32 VTop 2 SYMATTR InstName C10 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K SYMBOL cap 96 1328 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value .0005µ SYMBOL voltage -240 1616 R0 WINDOW 123 24 146 Left 2 WINDOW 39 24 125 Left 2 SYMATTR InstName V3 SYMATTR Value SINE(1 1 500K) SYMBOL res -576 944 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 2.2K SYMBOL res 192 944 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 2.2K SYMBOL PowerProducts\\LTC3850-1 -240 960 R0 SYMATTR InstName U1 TEXT 208 1536 Left 2 !.tran 450u startup