Version 4 SHEET 1 1608 904 WIRE 32 -560 -144 -560 WIRE 256 -560 32 -560 WIRE 560 -560 256 -560 WIRE 720 -560 560 -560 WIRE 32 -544 32 -560 WIRE 256 -544 256 -560 WIRE 32 -464 32 -480 WIRE 176 -448 160 -448 WIRE 256 -448 256 -464 WIRE 256 -448 240 -448 WIRE -576 -400 -736 -400 WIRE 160 -400 -576 -400 WIRE 928 -400 160 -400 WIRE -736 -384 -736 -400 WIRE -144 -368 -144 -560 WIRE -144 -368 -400 -368 WIRE -576 -352 -576 -400 WIRE -400 -352 -400 -368 WIRE 256 -352 256 -448 WIRE 256 -352 -272 -352 WIRE 672 -352 256 -352 WIRE 720 -352 720 -560 WIRE 928 -352 928 -400 WIRE -144 -336 -144 -368 WIRE 160 -336 160 -400 WIRE 256 -336 256 -352 WIRE 560 -336 560 -560 WIRE -736 -288 -736 -304 WIRE -256 -272 -528 -272 WIRE 880 -272 656 -272 WIRE -400 -176 -400 -288 WIRE -256 -176 -400 -176 WIRE 720 -176 720 -288 WIRE 720 -176 656 -176 WIRE -400 -160 -400 -176 WIRE 720 -160 720 -176 WIRE -896 -80 -1024 -80 WIRE -800 -80 -896 -80 WIRE -720 -80 -800 -80 WIRE -704 -80 -720 -80 WIRE -608 -80 -624 -80 WIRE -576 -80 -576 -256 WIRE -576 -80 -608 -80 WIRE -400 -80 -400 -96 WIRE -400 -80 -576 -80 WIRE -256 -80 -400 -80 WIRE 720 -80 720 -96 WIRE 720 -80 656 -80 WIRE 928 -80 928 -256 WIRE 928 -80 720 -80 WIRE 960 -80 928 -80 WIRE 976 -80 960 -80 WIRE 1072 -80 1056 -80 WIRE 1136 -80 1072 -80 WIRE 1232 -80 1136 -80 WIRE 1328 -80 1232 -80 WIRE -1024 -64 -1024 -80 WIRE -896 -64 -896 -80 WIRE -800 -64 -800 -80 WIRE -576 -64 -576 -80 WIRE 928 -64 928 -80 WIRE 1136 -64 1136 -80 WIRE 1232 -64 1232 -80 WIRE 1328 -64 1328 -80 WIRE -256 16 -528 16 WIRE 880 16 656 16 WIRE -1024 48 -1024 16 WIRE -960 48 -1024 48 WIRE -896 48 -896 0 WIRE -800 48 -800 0 WIRE -576 48 -576 32 WIRE 928 48 928 32 WIRE 1136 48 1136 0 WIRE 1232 48 1232 0 WIRE 1328 48 1328 16 WIRE 1328 48 1296 48 WIRE -1024 64 -1024 48 WIRE 1328 64 1328 48 WIRE -608 112 -608 -80 WIRE -592 112 -608 112 WIRE -448 112 -512 112 WIRE -352 112 -448 112 WIRE -256 112 -352 112 WIRE 704 112 656 112 WIRE 784 112 704 112 WIRE 848 112 784 112 WIRE 960 112 960 -80 WIRE 960 112 928 112 WIRE -352 128 -352 112 WIRE 704 128 704 112 WIRE -720 208 -720 -80 WIRE -448 208 -448 192 WIRE -448 208 -720 208 WIRE -352 208 -352 192 WIRE -352 208 -448 208 WIRE -256 208 -352 208 WIRE 704 208 704 192 WIRE 704 208 656 208 WIRE 784 208 784 192 WIRE 784 208 704 208 WIRE 1072 208 1072 -80 WIRE 1072 208 784 208 WIRE -448 304 -496 304 WIRE -256 304 -384 304 WIRE 800 304 656 304 WIRE 896 304 864 304 WIRE -272 400 -272 -352 WIRE -256 400 -272 400 WIRE 672 400 672 -352 WIRE 672 400 656 400 WIRE -720 464 -720 208 WIRE 1072 464 1072 208 WIRE -352 496 -384 496 WIRE -256 496 -288 496 WIRE 736 496 656 496 WIRE 848 496 800 496 WIRE -832 592 -864 592 WIRE -720 592 -720 544 WIRE -720 592 -752 592 WIRE -256 592 -720 592 WIRE 784 592 656 592 WIRE 1072 592 1072 544 WIRE 1072 592 784 592 WIRE 1120 592 1072 592 WIRE 1232 592 1200 592 WIRE 784 608 784 592 WIRE -960 688 -960 48 WIRE -256 688 -960 688 WIRE 784 688 656 688 WIRE 1296 688 1296 48 WIRE 1296 688 784 688 WIRE -144 768 -144 752 WIRE 64 768 64 752 WIRE 160 768 160 752 WIRE 256 768 256 752 WIRE 64 864 64 848 FLAG 160 768 0 FLAG 256 768 0 FLAG 64 864 0 FLAG -144 768 0 FLAG -736 -288 0 FLAG 32 -464 0 FLAG -576 48 0 FLAG -800 48 0 FLAG -896 48 0 FLAG -1024 64 0 FLAG -496 304 0 FLAG -384 496 0 FLAG -864 592 0 FLAG -736 -400 IN FLAG -1024 -80 OUT1 FLAG 928 48 0 FLAG 1136 48 0 FLAG 1232 48 0 FLAG 1328 64 0 FLAG 896 304 0 FLAG 848 496 0 FLAG 1232 592 0 FLAG 1328 -80 OUT2 FLAG 160 -448 0 SYMBOL res 48 752 R0 SYMATTR InstName R1 SYMATTR Value 115K SYMBOL voltage -736 -400 R0 SYMATTR InstName V1 SYMATTR Value 24 SYMBOL cap 16 -480 M180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C1 SYMATTR Value 4.7µ SYMBOL res 240 -560 R0 SYMATTR InstName R2 SYMATTR Value 2.2 SYMBOL nmos -528 -352 M0 WINDOW 0 -2 -9 Left 2 WINDOW 3 38 110 Right 2 SYMATTR InstName Q1 SYMATTR Value BSC093N04LS SYMBOL nmos -528 -64 M0 WINDOW 0 -33 21 Left 2 WINDOW 3 28 100 Right 2 SYMATTR InstName Q2 SYMATTR Value BSC035N04LS SYMBOL schottky -416 -352 R0 SYMATTR InstName D1 SYMATTR Value MBRS140 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -416 -160 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL ind -608 -64 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value .56µ SYMATTR SpiceLine Rser=1.8m SYMBOL res -496 96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 3.57K SYMBOL res -464 96 R0 SYMATTR InstName R4 SYMATTR Value 15K SYMBOL cap -368 128 R0 SYMATTR InstName C3 SYMATTR Value .1µ SYMBOL polcap -816 -64 R0 WINDOW 3 24 56 Left 2 WINDOW 123 26 79 Left 2 SYMATTR Value 330µ SYMATTR Value2 x2 SYMATTR InstName C4 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=2.5 Irms=3.7 Rser=0.009 Lser=0 mfg="KEMET" pn="T520V337M2R5ASE009" type="Tantalum" SYMBOL polcap -912 -64 R0 WINDOW 3 24 56 Left 2 WINDOW 123 26 79 Left 2 SYMATTR Value 100µ SYMATTR Value2 x2 SYMATTR InstName C5 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V107M006ASE012" type="Tantalum" SYMBOL cap -384 288 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 220p SYMATTR SpiceLine Rser=20K Cpar=22p SYMBOL cap -288 480 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value .001µ SYMBOL res -736 448 R0 SYMATTR InstName R5 SYMATTR Value 10K SYMBOL res -736 576 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 10K SYMBOL nmos 880 -352 R0 WINDOW 0 59 18 Left 2 WINDOW 3 61 98 Left 2 SYMATTR InstName Q3 SYMATTR Value BSC093N04LS SYMBOL nmos 880 -64 R0 WINDOW 0 -39 7 Left 2 WINDOW 3 15 106 Right 2 SYMATTR InstName Q4 SYMATTR Value BSC035N04LS SYMBOL schottky 704 -352 R0 SYMATTR InstName D2 SYMATTR Value MBRS140 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 704 -160 R0 SYMATTR InstName C8 SYMATTR Value .1µ SYMBOL ind 960 -64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value .56µ SYMATTR SpiceLine Rser=1.8m SYMBOL res 832 96 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 3.57K SYMBOL res 768 96 R0 SYMATTR InstName R8 SYMATTR Value 15K SYMBOL cap 688 128 R0 SYMATTR InstName C9 SYMATTR Value .1µ SYMBOL polcap 1120 -64 R0 WINDOW 3 24 56 Left 2 WINDOW 123 26 79 Left 2 SYMATTR Value 330µ SYMATTR Value2 x2 SYMATTR InstName C10 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=2.5 Irms=3.7 Rser=0.009 Lser=0 mfg="KEMET" pn="T520V337M2R5ASE009" type="Tantalum" SYMBOL polcap 1216 -64 R0 WINDOW 3 24 56 Left 2 WINDOW 123 26 79 Left 2 SYMATTR Value 100µ SYMATTR Value2 x2 SYMATTR InstName C11 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V107M006ASE012" type="Tantalum" SYMBOL cap 800 288 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 SYMATTR InstName C12 SYMATTR Value 220p SYMATTR SpiceLine Rser=20K Cpar=22p SYMBOL cap 736 480 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value .001µ SYMBOL res 1056 448 R0 SYMATTR InstName R9 SYMATTR Value 15K SYMBOL res 1104 608 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R10 SYMATTR Value 6K SYMBOL res -1040 -80 R0 WINDOW 3 33 89 Left 2 SYMATTR Value .08 SYMATTR InstName Rload1 SYMBOL res 1312 -80 R0 WINDOW 3 33 89 Left 2 SYMATTR Value .1 SYMATTR InstName Rload2 SYMBOL PowerProducts\\LTC3838-1 208 208 R0 SYMATTR InstName U1 SYMBOL cap 240 -464 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C14 SYMATTR Value 1µ SYMBOL res 768 592 R0 SYMATTR InstName R11 SYMATTR Value 10K TEXT 1000 776 Left 2 !.tran 1m startup