Version 4 SHEET 1 2132 948 WIRE -320 -400 -400 -400 WIRE -48 -400 -320 -400 WIRE 64 -400 -48 -400 WIRE 448 -400 64 -400 WIRE 688 -400 448 -400 WIRE -400 -384 -400 -400 WIRE -160 -384 -224 -384 WIRE -112 -384 -160 -384 WIRE 208 -384 -112 -384 WIRE 480 -384 208 -384 WIRE 592 -384 480 -384 WIRE -224 -368 -224 -384 WIRE 64 -368 64 -400 WIRE 208 -368 208 -384 WIRE -112 -304 -112 -384 WIRE -48 -304 -48 -400 WIRE -16 -304 -48 -304 WIRE 448 -304 448 -400 WIRE 448 -304 432 -304 WIRE 480 -304 480 -384 WIRE -400 -288 -400 -304 WIRE -224 -288 -224 -304 WIRE 592 -288 592 -384 WIRE -112 -208 -112 -224 WIRE -16 -208 -112 -208 WIRE 480 -208 480 -224 WIRE 480 -208 432 -208 WIRE -320 -192 -320 -400 WIRE -160 -192 -160 -384 WIRE 688 -192 688 -400 WIRE -16 -112 -272 -112 WIRE 640 -112 432 -112 WIRE -464 -16 -496 -16 WIRE -320 -16 -320 -96 WIRE -320 -16 -384 -16 WIRE -272 -16 -320 -16 WIRE -160 -16 -160 -128 WIRE -160 -16 -208 -16 WIRE -16 -16 -160 -16 WIRE 592 -16 592 -224 WIRE 592 -16 432 -16 WIRE 608 -16 592 -16 WIRE 688 -16 688 -96 WIRE 688 -16 672 -16 WIRE 720 -16 688 -16 WIRE 816 -16 800 -16 WIRE -320 80 -320 -16 WIRE -16 80 -320 80 WIRE 688 80 688 -16 WIRE 688 80 432 80 WIRE -320 96 -320 80 WIRE 688 96 688 80 WIRE -16 176 -272 176 WIRE 640 176 432 176 WIRE -320 208 -320 192 WIRE 688 208 688 192 WIRE -496 272 -496 -16 WIRE -16 272 -496 272 WIRE 816 272 816 -16 WIRE 816 272 432 272 WIRE -496 368 -496 352 WIRE -16 368 -496 368 WIRE 816 368 816 352 WIRE 816 368 432 368 WIRE -496 464 -496 368 WIRE -496 464 -624 464 WIRE -448 464 -496 464 WIRE -320 464 -368 464 WIRE -16 464 -320 464 WIRE 656 464 432 464 WIRE 704 464 656 464 WIRE 816 464 816 368 WIRE 816 464 784 464 WIRE 928 464 816 464 WIRE -624 480 -624 464 WIRE -320 480 -320 464 WIRE 656 480 656 464 WIRE 928 480 928 464 WIRE -496 496 -496 464 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 -624 576 -624 560 WIRE -496 576 -496 560 WIRE -320 576 -320 560 WIRE 656 576 656 560 WIRE 816 576 816 560 WIRE 928 576 928 560 WIRE -96 656 -112 656 WIRE -16 656 -32 656 WIRE 448 656 432 656 WIRE 528 656 512 656 WIRE -16 752 -48 752 WIRE 464 752 432 752 WIRE -16 848 -32 848 WIRE 448 848 432 848 WIRE 64 928 64 912 WIRE 208 928 208 912 WIRE 352 928 352 912 FLAG 688 208 0 FLAG 352 928 0 FLAG 64 928 0 FLAG 656 576 0 FLAG 528 656 0 FLAG 608 560 0 FLAG -320 208 0 FLAG -320 576 0 FLAG -112 656 0 FLAG -400 -288 0 FLAG -224 -288 0 FLAG 464 752 0 FLAG -48 752 0 FLAG 816 576 0 FLAG -496 576 0 FLAG -192 560 0 FLAG -624 576 0 FLAG 928 576 0 FLAG 208 928 0 FLAG -400 -400 IN FLAG -624 464 OUT1 FLAG 928 464 OUT2 SYMBOL voltage -400 -400 R0 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL nmos 640 -192 R0 SYMATTR InstName Q1 SYMATTR Value FDS6680A SYMBOL nmos 640 96 R0 SYMATTR InstName Q2 SYMATTR Value FDS6680A SYMBOL cap 608 0 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL ind 704 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 576 -288 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 33 -13 Right 2 WINDOW 3 37 101 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 -208 0 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL ind -368 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 -512 256 R0 WINDOW 0 41 45 Left 2 SYMATTR InstName R5 SYMATTR Value .015 SYMBOL schottky -176 -192 R0 WINDOW 3 32 63 Left 2 SYMATTR Value BAT54 SYMATTR InstName D2 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -464 448 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 62.5K SYMBOL res -336 464 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 -240 -368 R0 SYMATTR InstName C6 SYMATTR Value 4.7µ SYMBOL res -128 -320 R0 SYMATTR InstName R8 SYMATTR Value 100K SYMBOL res 464 -320 R0 SYMATTR InstName R9 SYMATTR Value 100K SYMBOL cap 800 496 R0 SYMATTR InstName C7 SYMATTR Value 150µ SYMATTR SpiceLine Rser=10m SYMBOL cap -512 496 R0 WINDOW 3 25 61 Left 2 SYMATTR Value 150µ SYMATTR InstName C8 SYMATTR SpiceLine Rser=10m SYMBOL cap -112 576 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -21 32 VBottom 2 SYMATTR InstName C9 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K SYMBOL res -640 464 R0 SYMATTR InstName Rload1 SYMATTR Value .66 SYMBOL res 912 464 R0 SYMATTR InstName Rload2 SYMATTR Value 2.5 SYMBOL PowerProducts\\LTC3826 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