Version 4 SHEET 1 1404 1168 WIRE 96 -624 -416 -624 WIRE 688 -624 96 -624 WIRE 752 -624 688 -624 WIRE -96 -608 -160 -608 WIRE 192 -608 -96 -608 WIRE 480 -608 192 -608 WIRE 592 -608 480 -608 WIRE 752 -608 752 -624 WIRE -160 -592 -160 -608 WIRE 96 -592 96 -624 WIRE 192 -592 192 -608 WIRE 704 -528 448 -528 WIRE -160 -512 -160 -528 WIRE 480 -512 480 -608 WIRE 480 -432 480 -448 WIRE 480 -432 448 -432 WIRE 480 -416 480 -432 WIRE 480 -336 480 -352 WIRE 480 -336 448 -336 WIRE 752 -336 752 -512 WIRE 752 -336 480 -336 WIRE 784 -336 752 -336 WIRE 912 -336 864 -336 WIRE 928 -336 912 -336 WIRE 1024 -336 1008 -336 WIRE 1056 -336 1024 -336 WIRE 1088 -336 1056 -336 WIRE 1184 -336 1088 -336 WIRE 752 -320 752 -336 WIRE 1088 -320 1088 -336 WIRE 1184 -320 1184 -336 WIRE 704 -240 448 -240 WIRE 1088 -224 1088 -256 WIRE 1184 -224 1184 -240 WIRE 752 -208 752 -224 WIRE -176 -144 -192 -144 WIRE -64 -144 -112 -144 WIRE 496 -144 448 -144 WIRE 912 -144 912 -336 WIRE 912 -144 496 -144 WIRE 496 -128 496 -144 WIRE -176 -48 -192 -48 WIRE -64 -48 -112 -48 WIRE 496 -48 496 -64 WIRE 496 -48 448 -48 WIRE 1024 -48 1024 -336 WIRE 1024 -48 496 -48 WIRE 1056 -48 1056 -336 WIRE 1056 48 1056 32 WIRE 1056 48 448 48 WIRE 1056 64 1056 48 WIRE -352 128 -352 112 WIRE 480 144 448 144 WIRE 560 144 544 144 WIRE 688 160 688 -624 WIRE 1056 160 1056 144 WIRE -352 224 -352 208 WIRE -240 224 -352 224 WIRE -352 240 -352 224 WIRE -240 240 -240 224 WIRE -64 240 -240 240 WIRE 640 240 448 240 WIRE -96 256 -96 -608 WIRE 592 256 592 -608 WIRE -416 336 -416 -624 WIRE -352 336 -352 320 WIRE -352 336 -416 336 WIRE -160 336 -352 336 WIRE -96 336 -96 320 WIRE -64 336 -96 336 WIRE 592 336 592 320 WIRE 592 336 448 336 WIRE -416 352 -416 336 WIRE -160 352 -160 336 WIRE 592 352 592 336 WIRE -64 432 -112 432 WIRE 592 432 592 416 WIRE 592 432 448 432 WIRE 688 432 688 256 WIRE 688 432 592 432 WIRE 720 432 688 432 WIRE 848 432 800 432 WIRE 864 432 848 432 WIRE 960 432 944 432 WIRE 992 432 960 432 WIRE 1024 432 992 432 WIRE 1120 432 1024 432 WIRE -416 448 -416 416 WIRE -96 448 -96 336 WIRE 688 448 688 432 WIRE 1024 448 1024 432 WIRE 1120 448 1120 432 WIRE -400 528 -480 528 WIRE -384 528 -400 528 WIRE -288 528 -304 528 WIRE -272 528 -288 528 WIRE -160 528 -160 448 WIRE -160 528 -192 528 WIRE -96 528 -96 512 WIRE -96 528 -160 528 WIRE -64 528 -96 528 WIRE 640 528 448 528 WIRE -160 544 -160 528 WIRE 1024 544 1024 512 WIRE 1120 544 1120 528 WIRE -480 560 -480 528 WIRE 688 560 688 544 WIRE -64 624 -112 624 WIRE 496 624 448 624 WIRE 848 624 848 432 WIRE 848 624 496 624 WIRE 496 640 496 624 WIRE -160 656 -160 640 WIRE -480 672 -480 640 WIRE -288 720 -288 528 WIRE -144 720 -288 720 WIRE -64 720 -144 720 WIRE 496 720 496 704 WIRE 496 720 448 720 WIRE 960 720 960 432 WIRE 960 720 496 720 WIRE 992 720 992 432 WIRE -144 736 -144 720 WIRE -400 816 -400 528 WIRE -144 816 -144 800 WIRE -144 816 -400 816 WIRE -64 816 -144 816 WIRE 992 816 992 800 WIRE 992 816 448 816 WIRE 992 832 992 816 WIRE -192 912 -208 912 WIRE -64 912 -128 912 WIRE 512 912 448 912 WIRE 592 912 576 912 WIRE 992 928 992 912 WIRE 144 1008 144 976 WIRE 240 1008 240 976 WIRE 336 1008 336 976 FLAG -480 672 0 FLAG -160 656 0 FLAG -416 448 0 FLAG -352 112 0 FLAG -192 -48 0 FLAG -192 -144 0 FLAG -160 -512 0 FLAG 144 1008 0 FLAG 240 1008 0 FLAG 336 1008 0 FLAG -208 912 0 FLAG 752 -208 0 FLAG 1088 -224 0 FLAG 1184 -224 0 FLAG 1056 160 0 FLAG 560 144 0 FLAG 688 560 0 FLAG 1024 544 0 FLAG 1120 544 0 FLAG 992 928 0 FLAG 592 912 0 FLAG -480 528 IN FLAG 1184 -336 OUT1 FLAG 1120 432 OUT2 FLAG -416 -624 OUT3 SYMBOL PowerProducts\\LTC3859 192 192 R0 SYMATTR InstName U1 SYMBOL voltage -480 544 R0 SYMATTR InstName V1 SYMATTR Value 6 SYMBOL ind -288 544 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 1.2µ SYMBOL res -288 544 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 2m SYMBOL nmos -112 352 M0 SYMATTR InstName Q1 SYMATTR Value BSC027N04LS SYMBOL nmos -112 544 M0 SYMATTR InstName Q2 SYMATTR Value BSC018N04LS SYMBOL cap -432 352 R0 SYMATTR InstName C1 SYMATTR Value 220µ SYMATTR SpiceLine Rser=1m SYMBOL cap -112 448 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL res -368 224 R0 SYMATTR InstName R2 SYMATTR Value 499K SYMBOL res -368 112 R0 SYMATTR InstName R3 SYMATTR Value 68.1K SYMBOL cap -112 -64 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .001µ SYMBOL cap -112 -160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .001µ SYMBOL cap -176 -528 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C5 SYMATTR Value 4.7µ SYMBOL cap -160 736 R0 SYMATTR InstName C6 SYMATTR Value .001µ SYMBOL schottky -80 256 M0 WINDOW 3 24 65 Left 2 SYMATTR Value BAT54 SYMATTR InstName D1 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -128 896 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 57 70 VTop 2 SYMATTR InstName C7 SYMATTR Value .01µ SYMATTR SpiceLine Rser=3.6K Cpar=820p SYMBOL nmos 704 -608 R0 SYMATTR InstName Q3 SYMATTR Value BSZ097N04LS SYMBOL nmos 704 -320 R0 SYMATTR InstName Q4 SYMATTR Value BSZ097N04LS SYMBOL cap 464 -416 R0 SYMATTR InstName C9 SYMATTR Value .1µ SYMBOL schottky 464 -512 R0 SYMATTR InstName D2 SYMATTR Value BAT54 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 768 -320 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 4.9µ SYMATTR SpiceLine Rser=4m SYMBOL res 912 -320 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 6m SYMBOL cap 1072 -320 R0 SYMATTR InstName C10 SYMATTR Value 220µ SYMATTR SpiceLine Rser=5m SYMBOL cap 480 -128 R0 SYMATTR InstName C11 SYMATTR Value .001µ SYMBOL res 1040 48 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R5 SYMATTR Value 357K SYMBOL res 1040 160 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R6 SYMATTR Value 68.1K SYMBOL cap 480 128 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 WINDOW 123 74 32 VTop 2 SYMATTR InstName C12 SYMATTR Value 1500p SYMATTR SpiceLine Rser=15K SYMATTR Value2 Cpar=100p SYMBOL nmos 640 160 R0 WINDOW 3 52 100 Left 2 SYMATTR Value BSZ097N04LS SYMATTR InstName Q5 SYMBOL nmos 640 448 R0 SYMATTR InstName Q6 SYMATTR Value BSZ097N04LS SYMBOL cap 576 352 R0 SYMATTR InstName C13 SYMATTR Value .1µ SYMBOL schottky 576 256 R0 SYMATTR InstName D3 SYMATTR Value BAT54 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 704 448 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L3 SYMATTR Value 6.5µ SYMATTR SpiceLine Rser=4m SYMBOL res 848 448 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R7 SYMATTR Value 8m SYMBOL cap 1008 448 R0 SYMATTR InstName C14 SYMATTR Value 68µ SYMATTR SpiceLine Rser=3m SYMBOL cap 480 640 R0 SYMATTR InstName C15 SYMATTR Value .001µ SYMBOL res 976 816 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R8 SYMATTR Value 649K SYMBOL res 976 928 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R9 SYMATTR Value 68.1K SYMBOL cap 512 896 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 57 70 VTop 2 SYMATTR InstName C16 SYMATTR Value 2200p SYMATTR SpiceLine Rser=15K Cpar=68p SYMBOL res 1168 -336 R0 SYMATTR InstName Rload1 SYMATTR Value 1 SYMBOL res 1104 432 R0 SYMATTR InstName Rload2 SYMATTR Value 2.8 TEXT 1096 912 Left 2 !.tran 1m startup