Version 4 SHEET 1 3880 3708 WIRE -144 -144 -240 -144 WIRE 48 -144 -144 -144 WIRE 176 -144 48 -144 WIRE 320 -144 176 -144 WIRE 464 -144 320 -144 WIRE 560 -144 464 -144 WIRE -240 -128 -240 -144 WIRE 48 -128 48 -144 WIRE 320 -128 320 -144 WIRE 464 -112 464 -144 WIRE 176 -48 176 -144 WIRE 320 -48 320 -64 WIRE -240 -32 -240 -48 WIRE -144 16 -144 -144 WIRE -48 16 -64 16 WIRE 48 16 48 -48 WIRE 48 16 32 16 WIRE 64 16 48 16 WIRE 464 16 464 -32 WIRE 464 16 432 16 WIRE 560 16 560 -144 WIRE 64 96 -96 96 WIRE 512 96 432 96 WIRE -544 176 -672 176 WIRE -480 176 -544 176 WIRE -448 176 -480 176 WIRE -368 176 -448 176 WIRE -352 176 -368 176 WIRE -256 176 -272 176 WIRE -240 176 -256 176 WIRE -144 176 -144 112 WIRE -144 176 -160 176 WIRE 64 176 -144 176 WIRE 560 176 560 112 WIRE 560 176 432 176 WIRE 592 176 560 176 WIRE 688 176 672 176 WIRE 704 176 688 176 WIRE 800 176 784 176 WIRE 832 176 800 176 WIRE 928 176 832 176 WIRE 960 176 928 176 WIRE 1040 176 960 176 WIRE -672 192 -672 176 WIRE -544 192 -544 176 WIRE 960 192 960 176 WIRE 1040 192 1040 176 WIRE -144 208 -144 176 WIRE -48 208 -80 208 WIRE 560 208 560 176 WIRE 560 208 528 208 WIRE -448 256 -448 176 WIRE -256 256 -256 176 WIRE 64 256 -256 256 WIRE 688 256 688 176 WIRE 688 256 432 256 WIRE 832 256 832 176 WIRE -672 288 -672 272 WIRE -544 288 -544 256 WIRE 960 288 960 256 WIRE 1040 288 1040 272 WIRE -368 336 -368 176 WIRE 64 336 -368 336 WIRE 800 336 800 176 WIRE 800 336 432 336 WIRE -448 352 -448 336 WIRE -192 352 -448 352 WIRE 832 352 832 336 WIRE 832 352 624 352 WIRE -448 368 -448 352 WIRE 832 368 832 352 WIRE -192 416 -192 352 WIRE 64 416 -192 416 WIRE 624 416 624 352 WIRE 624 416 432 416 WIRE -448 464 -448 448 WIRE 832 464 832 448 WIRE -480 496 -480 176 WIRE -224 496 -480 496 WIRE 64 496 -144 496 WIRE 640 496 432 496 WIRE 928 496 928 176 WIRE 928 496 720 496 WIRE -16 576 -48 576 WIRE 64 576 48 576 WIRE 448 576 432 576 WIRE 544 576 512 576 WIRE -64 656 -96 656 WIRE 64 656 0 656 WIRE 496 656 432 656 WIRE 592 656 560 656 WIRE 256 720 256 704 FLAG -64 16 0 FLAG 256 720 0 FLAG -448 464 0 FLAG -544 288 0 FLAG 832 464 0 FLAG 960 288 0 FLAG -48 576 0 FLAG 544 576 0 FLAG -96 656 0 FLAG 592 656 0 FLAG -240 -32 0 FLAG 464 208 0 FLAG -48 208 0 FLAG -672 288 0 FLAG 1040 288 0 FLAG -672 176 OUT1 FLAG 1040 176 OUT2 FLAG -240 -144 IN SYMBOL PowerProducts\\LT3742 256 304 R0 SYMATTR InstName U1 SYMBOL cap 304 -128 R0 SYMATTR InstName C1 SYMATTR Value 4.7µ SYMBOL res 32 -144 R0 SYMATTR InstName R1 SYMATTR Value 45.3K SYMBOL res 48 0 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 20K SYMBOL nmos -96 16 M0 SYMATTR InstName Q1 SYMATTR Value IRF7201 SYMBOL ind -144 192 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 6.5µ SYMATTR SpiceLine Rpar=1K SYMBOL res -256 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10m SYMBOL res -464 240 R0 SYMATTR InstName R4 SYMATTR Value 1.8K SYMBOL res -464 352 R0 SYMATTR InstName R5 SYMATTR Value 200 SYMBOL cap -560 192 R0 SYMATTR InstName C2 SYMATTR Value 47µ SYMBOL nmos 512 16 R0 SYMATTR InstName Q2 SYMATTR Value IRF7201 SYMBOL ind 576 192 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 6.5µ SYMATTR SpiceLine Rpar=1K SYMBOL res 688 192 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 10m SYMBOL res 816 240 R0 SYMATTR InstName R7 SYMATTR Value 1.05K SYMBOL res 816 352 R0 SYMATTR InstName R8 SYMATTR Value 200 SYMBOL cap 944 192 R0 SYMATTR InstName C3 SYMATTR Value 47µ SYMBOL res -240 512 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R9 SYMATTR Value 100K SYMBOL cap 48 560 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .001µ SYMBOL cap 448 560 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value .001µ SYMBOL cap 0 640 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 60 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 1000p SYMATTR SpiceLine Rser=30K SYMBOL cap 496 640 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 60 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 1000p SYMATTR SpiceLine Rser=30K SYMBOL res 736 480 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 100K SYMBOL voltage -240 -144 R0 SYMATTR InstName V1 SYMATTR Value 14 SYMBOL schottky 464 192 M90 WINDOW 0 2 55 VRight 2 WINDOW 3 38 58 VRight 2 SYMATTR InstName D1 SYMATTR Value MBRS360 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky -80 192 R90 WINDOW 0 3 7 VLeft 2 WINDOW 3 44 16 VLeft 2 SYMATTR InstName D2 SYMATTR Value MBRS360 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -688 176 R0 SYMATTR InstName Rload1 SYMATTR Value 4 SYMBOL res 1024 176 R0 SYMATTR InstName Rload2 SYMATTR Value 1.25 SYMBOL ind 448 -128 R0 SYMATTR InstName L3 SYMATTR Value 10µ TEXT 744 592 Left 2 !.tran 2m startup