Version 4 SHEET 1 1804 948 WIRE -320 -320 -448 -320 WIRE -48 -320 -320 -320 WIRE 64 -320 -48 -320 WIRE 464 -320 64 -320 WIRE 640 -320 464 -320 WIRE -448 -304 -448 -320 WIRE -128 -304 -176 -304 WIRE 208 -304 -128 -304 WIRE 496 -304 208 -304 WIRE 64 -288 64 -320 WIRE 208 -288 208 -304 WIRE 496 -272 496 -304 WIRE -128 -224 -128 -240 WIRE -448 -208 -448 -224 WIRE -48 -208 -48 -320 WIRE -16 -208 -48 -208 WIRE 464 -208 464 -320 WIRE 464 -208 432 -208 WIRE -320 -192 -320 -320 WIRE -176 -192 -176 -304 WIRE 640 -192 640 -320 WIRE -16 -112 -272 -112 WIRE 592 -112 432 -112 WIRE -432 -16 -464 -16 WIRE -320 -16 -320 -96 WIRE -320 -16 -352 -16 WIRE -272 -16 -320 -16 WIRE -176 -16 -176 -128 WIRE -176 -16 -208 -16 WIRE -16 -16 -176 -16 WIRE 496 -16 496 -208 WIRE 496 -16 432 -16 WIRE 512 -16 496 -16 WIRE 640 -16 640 -96 WIRE 640 -16 576 -16 WIRE 688 -16 640 -16 WIRE 816 -16 768 -16 WIRE -320 80 -320 -16 WIRE -16 80 -320 80 WIRE 640 80 640 -16 WIRE 640 80 432 80 WIRE -320 96 -320 80 WIRE 640 96 640 80 WIRE -16 176 -272 176 WIRE 592 176 432 176 WIRE -320 208 -320 192 WIRE 640 208 640 192 WIRE -464 272 -464 -16 WIRE -16 272 -464 272 WIRE 816 272 816 -16 WIRE 816 272 432 272 WIRE -464 368 -464 352 WIRE -16 368 -464 368 WIRE 816 368 816 352 WIRE 816 368 432 368 WIRE -464 464 -464 368 WIRE -464 464 -592 464 WIRE -416 464 -464 464 WIRE -304 464 -336 464 WIRE -224 464 -304 464 WIRE -16 464 -224 464 WIRE 656 464 432 464 WIRE 704 464 656 464 WIRE 816 464 816 368 WIRE 816 464 784 464 WIRE 976 464 816 464 WIRE -592 480 -592 464 WIRE -304 480 -304 464 WIRE 656 480 656 464 WIRE 976 480 976 464 WIRE -464 496 -464 464 WIRE 816 496 816 464 WIRE -176 560 -192 560 WIRE -16 560 -112 560 WIRE 528 560 432 560 WIRE 608 560 592 560 WIRE -592 576 -592 560 WIRE -464 576 -464 560 WIRE -304 576 -304 560 WIRE 656 576 656 560 WIRE 816 576 816 560 WIRE 976 576 976 560 WIRE -224 624 -224 464 WIRE -96 656 -112 656 WIRE -16 656 -32 656 WIRE 448 656 432 656 WIRE 528 656 512 656 WIRE -224 752 -224 704 WIRE -16 752 -224 752 WIRE 464 752 432 752 WIRE 64 832 64 816 WIRE 208 832 208 816 WIRE 352 832 352 816 FLAG 640 208 0 FLAG 352 832 0 FLAG 208 832 0 FLAG 64 832 0 FLAG 656 576 0 FLAG 528 656 0 FLAG 608 560 0 FLAG -320 208 0 FLAG -304 576 0 FLAG -112 656 0 FLAG -448 -208 0 FLAG -128 -224 0 FLAG 464 752 0 FLAG 816 576 0 FLAG -464 576 0 FLAG -192 560 0 FLAG -592 576 0 FLAG 976 576 0 FLAG -592 464 OUT1 FLAG 976 464 OUT2 FLAG -448 -320 IN SYMBOL voltage -448 -320 R0 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL nmos 592 -192 R0 SYMATTR InstName Q1 SYMATTR Value FDS6680A SYMBOL nmos 592 96 R0 SYMATTR InstName Q2 SYMATTR Value FDS6680A SYMBOL cap 576 -32 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL ind 672 0 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 7.2µ SYMATTR SpiceLine Rpar=2K SYMBOL res 800 256 R0 SYMATTR InstName R1 SYMATTR Value .015 SYMBOL schottky 480 -272 R0 WINDOW 3 32 63 Left 2 SYMATTR Value BAT54 SYMATTR InstName D1 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 800 448 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 192.5K SYMBOL res 640 464 R0 SYMATTR InstName R3 SYMATTR Value 20K SYMBOL cap 512 640 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value .001µ SYMBOL nmos -272 -192 M0 WINDOW 0 35 -4 Right 2 WINDOW 3 41 104 Right 2 SYMATTR InstName Q3 SYMATTR Value FDS6680A SYMBOL nmos -272 96 M0 WINDOW 0 -2 21 Right 2 WINDOW 3 20 106 Right 2 SYMATTR InstName Q4 SYMATTR Value FDS6680A SYMBOL cap -272 -32 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL ind -336 0 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 3.3µ SYMATTR SpiceLine Rpar=2K SYMBOL res -480 256 R0 WINDOW 0 41 45 Left 2 SYMATTR InstName R5 SYMATTR Value .015 SYMBOL schottky -192 -192 R0 WINDOW 3 32 63 Left 2 SYMATTR Value BAT54 SYMATTR InstName D2 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -432 448 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 62.5K SYMBOL res -320 464 R0 SYMATTR InstName R7 SYMATTR Value 20K SYMBOL cap -96 640 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value .001µ SYMBOL cap -144 -304 R0 WINDOW 0 29 18 Left 2 SYMATTR InstName C6 SYMATTR Value 4.7µ SYMBOL cap 800 496 R0 WINDOW 39 24 60 Left 2 WINDOW 0 25 4 Left 2 WINDOW 3 38 31 Left 2 SYMATTR SpiceLine Rser=50m SYMATTR InstName C7 SYMATTR Value 150µ SYMBOL cap -480 496 R0 WINDOW 3 38 31 Left 2 WINDOW 39 26 61 Left 2 SYMATTR Value 150µ SYMATTR SpiceLine Rser=50m SYMATTR InstName C8 SYMBOL cap -112 576 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -28 32 VBottom 2 SYMATTR InstName C9 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K SYMBOL res -240 608 R0 SYMATTR InstName R9 SYMATTR Value 100K SYMBOL res 960 464 R0 SYMATTR InstName Rload2 SYMATTR Value 2.5 SYMBOL res -608 464 R0 SYMATTR InstName Rload1 SYMATTR Value .66 SYMBOL PowerProducts\\LTC3826-1 208 272 R0 SYMATTR InstName U1 SYMBOL cap 592 576 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -28 32 VBottom 2 SYMATTR InstName C3 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K TEXT 648 704 Left 2 !.tran 1m startup