Version 4 SHEET 1 1284 948 WIRE -272 -432 -400 -432 WIRE 64 -432 -272 -432 WIRE 672 -432 64 -432 WIRE -400 -416 -400 -432 WIRE 464 -416 -48 -416 WIRE 784 -416 464 -416 WIRE -160 -400 -224 -400 WIRE -112 -400 -160 -400 WIRE -32 -400 -112 -400 WIRE 208 -400 -32 -400 WIRE 480 -400 208 -400 WIRE 560 -400 480 -400 WIRE 784 -400 784 -416 WIRE -224 -384 -224 -400 WIRE 64 -368 64 -432 WIRE 208 -368 208 -400 WIRE 352 -368 352 -384 WIRE 560 -368 560 -400 WIRE -400 -320 -400 -336 WIRE -112 -320 -112 -400 WIRE -224 -304 -224 -320 WIRE -48 -304 -48 -416 WIRE -16 -304 -48 -304 WIRE 464 -304 464 -416 WIRE 464 -304 432 -304 WIRE 480 -304 480 -400 WIRE 784 -304 784 -320 WIRE -112 -208 -112 -240 WIRE -16 -208 -112 -208 WIRE 480 -208 480 -224 WIRE 480 -208 432 -208 WIRE -272 -192 -272 -432 WIRE -160 -192 -160 -400 WIRE 672 -192 672 -432 WIRE -16 -112 -224 -112 WIRE 624 -112 432 -112 WIRE -416 -16 -448 -16 WIRE -272 -16 -272 -96 WIRE -272 -16 -336 -16 WIRE -240 -16 -272 -16 WIRE -160 -16 -160 -128 WIRE -160 -16 -176 -16 WIRE -16 -16 -160 -16 WIRE 560 -16 560 -304 WIRE 560 -16 432 -16 WIRE 576 -16 560 -16 WIRE 672 -16 672 -96 WIRE 672 -16 640 -16 WIRE 720 -16 672 -16 WIRE 848 -16 800 -16 WIRE -272 80 -272 -16 WIRE -16 80 -272 80 WIRE 672 80 672 -16 WIRE 672 80 432 80 WIRE -272 96 -272 80 WIRE 672 96 672 80 WIRE -16 176 -224 176 WIRE 624 176 432 176 WIRE -272 208 -272 192 WIRE 672 208 672 192 WIRE -448 272 -448 -16 WIRE -16 272 -448 272 WIRE 848 272 848 -16 WIRE 848 272 432 272 WIRE -448 368 -448 352 WIRE -16 368 -448 368 WIRE 848 368 848 352 WIRE 848 368 432 368 WIRE -448 464 -448 368 WIRE -448 464 -576 464 WIRE -400 464 -448 464 WIRE -272 464 -320 464 WIRE -16 464 -272 464 WIRE 672 464 432 464 WIRE 720 464 672 464 WIRE 848 464 848 368 WIRE 848 464 800 464 WIRE 960 464 848 464 WIRE -576 480 -576 464 WIRE -272 480 -272 464 WIRE 672 480 672 464 WIRE 960 480 960 464 WIRE -448 496 -448 464 WIRE 848 496 848 464 WIRE -128 560 -144 560 WIRE -16 560 -64 560 WIRE 480 560 432 560 WIRE 560 560 544 560 WIRE -576 576 -576 560 WIRE -448 576 -448 560 WIRE -272 576 -272 560 WIRE 672 576 672 560 WIRE 848 576 848 560 WIRE 960 576 960 560 WIRE -128 656 -144 656 WIRE -16 656 -64 656 WIRE 480 656 432 656 WIRE 560 656 544 656 WIRE -32 752 -32 -400 WIRE -16 752 -32 752 WIRE 464 752 432 752 WIRE 64 928 64 912 WIRE 208 928 208 912 WIRE 352 928 352 912 FLAG 672 208 0 FLAG 352 928 0 FLAG 64 928 0 FLAG 672 576 0 FLAG 560 656 0 FLAG 560 560 0 FLAG -272 208 0 FLAG -272 576 0 FLAG -144 656 0 FLAG -400 -320 0 FLAG -224 -304 0 FLAG 464 752 0 FLAG 848 576 0 FLAG -448 576 0 FLAG -144 560 0 FLAG -576 576 0 FLAG 960 576 0 FLAG 208 928 0 FLAG -400 -432 IN FLAG -576 464 OUT1 FLAG 960 464 OUT2 FLAG 784 -304 0 FLAG 784 -416 RUN SYMBOL voltage -400 -432 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap 576 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 832 256 R0 SYMATTR InstName R1 SYMATTR Value .01 SYMBOL schottky 544 -368 R0 WINDOW 3 32 63 Left 2 SYMATTR Value BAT54 SYMATTR InstName D1 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 816 448 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 193K SYMBOL res 656 464 R0 SYMATTR InstName R3 SYMATTR Value 20K SYMBOL cap 544 640 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value .001µ SYMBOL nmos -224 -192 M0 SYMATTR InstName Q1 SYMATTR Value Si7884DP SYMBOL cap -176 0 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C3 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 3.3µ SYMATTR SpiceLine Rpar=2K SYMBOL res -464 256 R0 WINDOW 0 41 45 Left 2 SYMATTR InstName R4 SYMATTR Value .007 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 -416 448 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 62.5K SYMBOL res -288 464 R0 SYMATTR InstName R6 SYMATTR Value 20K SYMBOL cap -128 640 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .001µ SYMBOL cap -240 -384 R0 SYMATTR InstName C5 SYMATTR Value 4.7µ SYMBOL res -128 -336 R0 SYMATTR InstName R7 SYMATTR Value 100K SYMBOL res 464 -320 R0 SYMATTR InstName R8 SYMATTR Value 100K SYMBOL cap 832 496 R0 SYMATTR InstName C6 SYMATTR Value 150µ SYMATTR SpiceLine Rser=50m SYMBOL cap -464 496 R0 WINDOW 3 25 61 Left 2 SYMATTR Value 150µ SYMATTR InstName C7 SYMATTR SpiceLine Rser=50m SYMBOL cap -64 576 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 4 32 VBottom 2 WINDOW 39 -17 33 VBottom 2 SYMATTR InstName C8 SYMATTR Value 680p SYMATTR SpiceLine Rser=15K SYMBOL nmos -224 96 M0 SYMATTR InstName Q2 SYMATTR Value Si7884DP SYMBOL nmos 624 -192 R0 SYMATTR InstName Q3 SYMATTR Value Si7884DP SYMBOL nmos 624 96 R0 SYMATTR InstName Q4 SYMATTR Value Si7884DP SYMBOL voltage 784 -416 R0 SYMATTR InstName V2 SYMATTR Value 5 SYMBOL cap 480 576 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 1 32 VBottom 2 WINDOW 39 -17 32 VBottom 2 SYMATTR InstName C9 SYMATTR Value 680p SYMATTR SpiceLine Rser=15K SYMBOL PowerProducts\\LTC3858-2 208 272 R0 SYMATTR InstName U1 SYMBOL res 944 464 R0 SYMATTR InstName Rload2 SYMATTR Value 2.4 SYMBOL res -592 464 R0 SYMATTR InstName Rload1 SYMATTR Value .66 TEXT 664 704 Left 2 !.tran 1m startup