Version 4 SHEET 1 1372 864 WIRE 1088 -400 -576 -400 WIRE 416 -384 -352 -384 WIRE 848 -384 416 -384 WIRE -224 -368 -304 -368 WIRE 32 -368 -224 -368 WIRE 128 -368 32 -368 WIRE 224 -368 128 -368 WIRE 656 -368 224 -368 WIRE -304 -352 -304 -368 WIRE 32 -336 32 -368 WIRE 128 -336 128 -368 WIRE 224 -336 224 -368 WIRE 416 -336 416 -384 WIRE -592 -288 -720 -288 WIRE -480 -288 -592 -288 WIRE -352 -288 -352 -384 WIRE -352 -288 -480 -288 WIRE -720 -272 -720 -288 WIRE -224 -272 -224 -368 WIRE -96 -272 -112 -272 WIRE 560 -272 544 -272 WIRE 656 -272 656 -368 WIRE 656 -272 640 -272 WIRE -480 -256 -480 -288 WIRE -352 -256 -352 -288 WIRE 656 -256 656 -272 WIRE 848 -256 848 -384 WIRE -720 -176 -720 -192 WIRE -480 -176 -480 -192 WIRE -96 -176 -304 -176 WIRE 800 -176 544 -176 WIRE -224 -80 -224 -208 WIRE -96 -80 -224 -80 WIRE 656 -80 656 -192 WIRE 656 -80 544 -80 WIRE -224 -64 -224 -80 WIRE 656 -64 656 -80 WIRE -576 16 -576 -400 WIRE -576 16 -720 16 WIRE -560 16 -576 16 WIRE -464 16 -480 16 WIRE -448 16 -464 16 WIRE -352 16 -352 -160 WIRE -352 16 -368 16 WIRE -224 16 -224 0 WIRE -224 16 -352 16 WIRE -96 16 -224 16 WIRE 656 16 656 0 WIRE 656 16 544 16 WIRE 848 16 848 -160 WIRE 848 16 656 16 WIRE 880 16 848 16 WIRE 976 16 960 16 WIRE 992 16 976 16 WIRE 1088 16 1088 -400 WIRE 1088 16 1072 16 WIRE -720 32 -720 16 WIRE -352 32 -352 16 WIRE 848 32 848 16 WIRE -96 112 -304 112 WIRE 800 112 544 112 WIRE -720 128 -720 112 WIRE -352 144 -352 128 WIRE 848 144 848 128 WIRE -576 208 -576 16 WIRE -96 208 -576 208 WIRE 1088 208 1088 16 WIRE 1088 208 544 208 WIRE -592 288 -592 -288 WIRE -464 304 -464 16 WIRE -96 304 -464 304 WIRE 976 304 976 16 WIRE 976 304 544 304 WIRE -592 400 -592 368 WIRE -96 400 -592 400 WIRE 672 400 544 400 WIRE 768 400 736 400 WIRE -592 416 -592 400 WIRE -176 496 -192 496 WIRE -96 496 -112 496 WIRE 576 496 544 496 WIRE -592 512 -592 496 WIRE 48 576 48 560 WIRE 288 576 288 560 FLAG -304 -288 0 FLAG -720 128 0 FLAG -352 144 0 FLAG -480 -176 0 FLAG -720 -176 0 FLAG -720 -288 OUT FLAG -720 16 IN FLAG -592 512 0 FLAG -192 496 0 FLAG 288 576 0 FLAG 768 400 0 FLAG 848 144 0 FLAG 576 496 0 FLAG 48 576 0 SYMBOL cap -320 -352 R0 WINDOW 3 29 49 Left 2 SYMATTR Value 4.7µ SYMATTR InstName C1 SYMBOL res 656 -288 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 100K SYMBOL voltage -720 16 R0 SYMATTR InstName V1 SYMATTR Value 7 SYMBOL res -576 32 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 4m SYMBOL ind -464 32 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=2m SYMBOL nmos -304 -256 M0 WINDOW 0 6 31 Right 2 WINDOW 3 41 111 Right 2 SYMATTR InstName Q1 SYMATTR Value Si4840DY SYMBOL nmos -304 32 M0 WINDOW 0 -5 21 Right 2 WINDOW 3 24 105 Right 2 SYMATTR InstName Q2 SYMATTR Value Si4840DY SYMBOL cap -240 -64 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL schottky -240 -272 R0 WINDOW 3 18 73 Left 2 SYMATTR Value MBR0540 SYMATTR InstName D1 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -496 -256 R0 SYMATTR InstName C3 SYMATTR Value 220µ SYMATTR SpiceLine Rser=5m SYMBOL res -608 400 R0 SYMATTR InstName R4 SYMATTR Value 12.1K SYMBOL res -608 272 R0 SYMATTR InstName R5 SYMATTR Value 232K SYMBOL cap -112 480 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .005µ SYMBOL cap 672 384 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 15n SYMATTR SpiceLine Rser=8.66K Cpar=100p SYMBOL res 1088 32 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 4m SYMBOL ind 976 32 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=2m SYMBOL nmos 800 -256 R0 WINDOW 0 56 21 Left 2 WINDOW 3 53 67 Left 2 SYMATTR InstName Q3 SYMATTR Value Si4840DY SYMBOL nmos 800 32 R0 WINDOW 3 54 72 Left 2 SYMATTR Value Si4840DY SYMATTR InstName Q4 SYMBOL cap 640 -64 R0 SYMATTR InstName C6 SYMATTR Value .1µ SYMBOL schottky 640 -256 R0 WINDOW 3 21 65 Left 2 SYMATTR Value MBR0540 SYMATTR InstName D2 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -736 -288 R0 SYMATTR InstName Rload SYMATTR Value 2.4 SYMBOL PowerProducts\\LTC3787 224 112 R0 SYMATTR InstName U1 TEXT 888 464 Left 2 !.tran 1.5m startup