Version 4 SHEET 1 1260 1156 WIRE -272 -432 -400 -432 WIRE 96 -432 -272 -432 WIRE 688 -432 96 -432 WIRE -400 -416 -400 -432 WIRE -128 -400 -192 -400 WIRE 224 -400 -128 -400 WIRE 544 -400 224 -400 WIRE 576 -400 544 -400 WIRE -192 -384 -192 -400 WIRE 96 -368 96 -432 WIRE 224 -368 224 -400 WIRE -400 -320 -400 -336 WIRE -192 -304 -192 -320 WIRE 576 -288 576 -400 WIRE -272 -192 -272 -432 WIRE -128 -192 -128 -400 WIRE 688 -192 688 -432 WIRE -32 -112 -224 -112 WIRE 640 -112 480 -112 WIRE -640 -16 -736 -16 WIRE -560 -16 -640 -16 WIRE -544 -16 -560 -16 WIRE -448 -16 -464 -16 WIRE -416 -16 -448 -16 WIRE -272 -16 -272 -96 WIRE -272 -16 -336 -16 WIRE -224 -16 -272 -16 WIRE -128 -16 -128 -128 WIRE -128 -16 -160 -16 WIRE -32 -16 -128 -16 WIRE 576 -16 576 -224 WIRE 576 -16 480 -16 WIRE 592 -16 576 -16 WIRE 688 -16 688 -96 WIRE 688 -16 656 -16 WIRE 736 -16 688 -16 WIRE 848 -16 816 -16 WIRE 880 -16 848 -16 WIRE 976 -16 960 -16 WIRE 1056 -16 976 -16 WIRE 1152 -16 1056 -16 WIRE -736 0 -736 -16 WIRE 1152 0 1152 -16 WIRE -640 16 -640 -16 WIRE 1056 16 1056 -16 WIRE -272 80 -272 -16 WIRE -32 80 -272 80 WIRE 688 80 688 -16 WIRE 688 80 480 80 WIRE -736 96 -736 80 WIRE -640 96 -640 80 WIRE -272 96 -272 80 WIRE 688 96 688 80 WIRE 1056 96 1056 80 WIRE 1152 96 1152 80 WIRE -32 176 -224 176 WIRE 640 176 480 176 WIRE -272 208 -272 192 WIRE 688 208 688 192 WIRE -32 272 -64 272 WIRE 512 272 480 272 WIRE -448 368 -448 -16 WIRE -32 368 -448 368 WIRE 848 368 848 -16 WIRE 848 368 480 368 WIRE -560 464 -560 -16 WIRE -32 464 -560 464 WIRE 976 464 976 -16 WIRE 976 464 480 464 WIRE -560 560 -560 464 WIRE -32 560 -560 560 WIRE 976 560 976 464 WIRE 976 560 480 560 WIRE -128 656 -144 656 WIRE -32 656 -64 656 WIRE 512 656 480 656 WIRE 608 656 576 656 WIRE -128 752 -144 752 WIRE -32 752 -64 752 WIRE 512 752 480 752 WIRE 608 752 576 752 WIRE 496 848 480 848 WIRE -32 944 -48 944 WIRE 512 944 480 944 WIRE 96 1024 96 1008 WIRE 224 1024 224 1008 WIRE 96 1120 96 1104 FLAG 688 208 0 FLAG 96 1120 0 FLAG 608 656 0 FLAG -272 208 0 FLAG -400 -320 0 FLAG -192 -304 0 FLAG -640 96 0 FLAG -144 656 0 FLAG -736 96 0 FLAG 224 1024 0 FLAG -400 -432 IN FLAG -736 -16 OUT1 FLAG -48 944 0 FLAG 496 848 0 FLAG -144 752 0 FLAG 608 752 0 FLAG -64 272 0 FLAG 512 272 0 FLAG 1056 96 0 FLAG 1152 96 0 FLAG 1152 -16 OUT2 FLAG 544 -400 INTVcc FLAG 512 944 INTVcc SYMBOL voltage -400 -432 R0 SYMATTR InstName V1 SYMATTR Value 6 SYMBOL cap 592 0 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL ind 720 0 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value .47µ SYMATTR SpiceLine Rpar=2K SYMBOL schottky 560 -288 R0 WINDOW 3 32 63 Left 2 SYMATTR Value BAT54 SYMATTR InstName D1 SYMATTR Description Diode SYMATTR Type diode SYMBOL nmos -224 -192 M0 SYMATTR InstName Q3 SYMATTR Value Si7884DP SYMBOL cap -160 0 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL ind -320 0 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value .47µ SYMATTR SpiceLine Rpar=2K SYMBOL res -448 -32 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 2m SYMBOL schottky -144 -192 R0 WINDOW 3 32 63 Left 2 SYMATTR Value BAT54 SYMATTR InstName D2 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -208 -384 R0 SYMATTR InstName C6 SYMATTR Value 4.7µ SYMBOL cap -656 16 R0 WINDOW 3 25 61 Left 2 SYMATTR Value 540µ SYMATTR InstName C8 SYMBOL cap -64 672 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -18 83 VBottom 2 SYMATTR InstName C9 SYMATTR Value 1000p SYMATTR SpiceLine Rser=10K Cpar=100p SYMBOL res -752 -16 R0 SYMATTR InstName Rload1 SYMATTR Value .1 SYMBOL nmos -224 96 M0 SYMATTR InstName Q1 SYMATTR Value Si7884DP SYMBOL nmos 640 -192 R0 SYMATTR InstName Q2 SYMATTR Value Si7884DP SYMBOL nmos 640 96 R0 SYMATTR InstName Q4 SYMATTR Value Si7884DP SYMBOL cap 512 672 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -18 97 VBottom 2 SYMATTR InstName C3 SYMATTR Value 1000p SYMATTR SpiceLine Rser=15K Cpar=100p SYMBOL res 80 1008 R0 SYMATTR InstName R4 SYMATTR Value 162K SYMBOL cap -64 736 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C10 SYMATTR Value .002µ SYMBOL cap 512 736 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value .002µ SYMBOL res 864 -32 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 2m SYMBOL cap 1040 16 R0 WINDOW 3 25 61 Left 2 SYMATTR Value 540µ SYMATTR InstName C2 SYMBOL res 1136 -16 R0 SYMATTR InstName Rload2 SYMATTR Value .08 SYMBOL PowerProducts\\LTC3865-1 224 320 R0 SYMATTR InstName U1 TEXT 944 848 Left 2 !.tran 1m startup