Version 4 SHEET 1 1140 984 WIRE 192 -208 112 -208 WIRE 304 -208 192 -208 WIRE 544 -208 304 -208 WIRE 112 -192 112 -208 WIRE 432 -160 432 -176 WIRE 112 -96 112 -112 WIRE 304 -80 304 -208 WIRE 432 -80 432 -96 WIRE 192 -16 192 -208 WIRE 224 -16 192 -16 WIRE 544 -16 544 -208 WIRE 544 -16 512 -16 WIRE 192 80 192 -16 WIRE 224 80 192 80 WIRE 544 80 544 -16 WIRE 544 80 512 80 WIRE -96 176 -240 176 WIRE -16 176 -96 176 WIRE 80 176 -16 176 WIRE 224 176 160 176 WIRE 576 176 512 176 WIRE 688 176 656 176 WIRE 864 176 688 176 WIRE 960 176 864 176 WIRE -240 192 -240 176 WIRE -96 192 -96 176 WIRE 864 192 864 176 WIRE 960 192 960 176 WIRE -16 272 -16 240 WIRE 224 272 -16 272 WIRE 688 272 688 240 WIRE 688 272 512 272 WIRE -240 288 -240 272 WIRE -96 288 -96 256 WIRE -16 288 -16 272 WIRE 688 288 688 272 WIRE 864 288 864 256 WIRE 960 288 960 272 WIRE -16 384 -16 368 WIRE 688 384 688 368 WIRE 192 464 192 80 WIRE 224 464 192 464 WIRE 544 464 544 80 WIRE 544 464 512 464 WIRE 192 560 192 464 WIRE 224 560 192 560 WIRE 544 560 544 464 WIRE 544 560 512 560 WIRE -96 656 -240 656 WIRE -16 656 -96 656 WIRE 80 656 -16 656 WIRE 224 656 160 656 WIRE 576 656 512 656 WIRE 704 656 656 656 WIRE 880 656 704 656 WIRE 976 656 880 656 WIRE -240 672 -240 656 WIRE -96 672 -96 656 WIRE 880 672 880 656 WIRE 976 672 976 656 WIRE -16 752 -16 720 WIRE 224 752 -16 752 WIRE 704 752 704 720 WIRE 704 752 512 752 WIRE -240 768 -240 752 WIRE -96 768 -96 736 WIRE -16 768 -16 752 WIRE 880 768 880 736 WIRE 976 768 976 752 WIRE 704 784 704 752 WIRE -16 864 -16 848 WIRE 704 880 704 864 WIRE 272 928 272 912 WIRE 368 928 368 912 WIRE 464 928 464 912 FLAG 112 -96 0 FLAG 432 -176 0 FLAG 368 928 0 FLAG 272 928 0 FLAG -240 288 0 FLAG -96 288 0 FLAG -16 384 0 FLAG -240 768 0 FLAG -96 768 0 FLAG -16 864 0 FLAG 960 288 0 FLAG 864 288 0 FLAG 688 384 0 FLAG 976 768 0 FLAG 880 768 0 FLAG 704 880 0 FLAG 464 928 0 FLAG 112 -208 IN FLAG -240 176 OUT1 FLAG -240 656 OUT2 FLAG 976 656 OUT4 FLAG 960 176 OUT3 SYMBOL PowerProducts\\LTC3644 368 80 R0 SYMATTR InstName U1 SYMBOL voltage 112 -208 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap 416 -96 M180 WINDOW 0 24 56 Left 2 WINDOW 3 27 13 Left 2 SYMATTR InstName C1 SYMATTR Value 4.7µ SYMBOL ind 176 192 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 3.3µ SYMBOL cap -112 192 R0 SYMATTR InstName C2 SYMATTR Value 47µ SYMBOL cap -32 176 R0 WINDOW 0 35 17 Left 2 WINDOW 123 25 74 Left 2 WINDOW 3 33 46 Left 2 SYMATTR InstName C3 SYMATTR Value2 Rpar=619K SYMATTR Value 22p SYMBOL res -32 272 R0 SYMATTR InstName R1 SYMATTR Value 196K SYMBOL ind 176 672 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 4.7µ SYMBOL cap -112 672 R0 SYMATTR InstName C4 SYMATTR Value 47µ SYMBOL cap -32 656 R0 WINDOW 0 41 17 Left 2 WINDOW 123 25 69 Left 2 WINDOW 3 35 44 Left 2 SYMATTR InstName C5 SYMATTR Value2 Rpar=619K SYMATTR Value 22p SYMBOL res -32 752 R0 SYMATTR InstName R2 SYMATTR Value 137K SYMBOL ind 560 192 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L3 SYMATTR Value 3.3µ SYMBOL cap 848 192 R0 SYMATTR InstName C6 SYMATTR Value 47µ SYMBOL cap 672 176 R0 WINDOW 0 46 17 Left 2 WINDOW 123 27 72 Left 2 WINDOW 3 40 46 Left 2 SYMATTR InstName C7 SYMATTR Value2 Rpar=619K SYMATTR Value 10p SYMBOL res 672 272 R0 SYMATTR InstName R3 SYMATTR Value 309K SYMBOL ind 560 672 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L4 SYMATTR Value 6.8µ SYMBOL cap 864 672 R0 SYMATTR InstName C8 SYMATTR Value 47µ SYMBOL cap 688 656 R0 WINDOW 0 40 13 Left 2 WINDOW 123 23 65 Left 2 WINDOW 3 44 42 Left 2 SYMATTR InstName C9 SYMATTR Value2 Rpar=619K SYMATTR Value 22p SYMBOL res 688 768 R0 SYMATTR InstName R4 SYMATTR Value 84.5K SYMBOL res -256 176 R0 SYMATTR InstName Rload1 SYMATTR Value 2 SYMBOL res -256 656 R0 SYMATTR InstName Rload2 SYMATTR Value 2.7 SYMBOL res 944 176 R0 SYMATTR InstName Rload3 SYMATTR Value 1.4 SYMBOL res 960 656 R0 SYMATTR InstName Rload4 SYMATTR Value 4 TEXT 824 968 Left 2 !.tran 1.2m startup