Version 4
SHEET 1 1192 1236
WIRE 256 144 160 144
WIRE 352 144 256 144
WIRE 448 144 352 144
WIRE 544 144 448 144
WIRE 640 144 544 144
WIRE 160 160 160 144
WIRE 352 160 352 144
WIRE 448 160 448 144
WIRE 544 160 544 144
WIRE 256 224 256 144
WIRE 272 224 256 224
WIRE 640 224 640 144
WIRE 640 224 624 224
WIRE 160 256 160 240
WIRE -128 336 -240 336
WIRE -64 336 -128 336
WIRE 32 336 -64 336
WIRE 112 336 32 336
WIRE 160 336 112 336
WIRE 272 336 240 336
WIRE 640 336 640 224
WIRE 640 336 624 336
WIRE -240 352 -240 336
WIRE 32 352 32 336
WIRE 112 352 112 336
WIRE -128 368 -128 336
WIRE -240 448 -240 432
WIRE -128 448 -128 432
WIRE 32 448 32 416
WIRE 112 448 112 432
WIRE 112 448 32 448
WIRE 272 448 112 448
WIRE 640 448 624 448
WIRE 736 448 720 448
WIRE 32 464 32 448
WIRE -64 560 -64 336
WIRE 32 560 32 544
WIRE 176 560 160 560
WIRE 272 560 240 560
WIRE 672 560 624 560
WIRE 672 576 672 560
WIRE 160 608 0 608
WIRE -64 672 -64 656
WIRE -64 672 -192 672
WIRE 32 672 -64 672
WIRE 128 672 32 672
WIRE 160 672 160 608
WIRE 272 672 160 672
WIRE 672 672 672 656
WIRE 672 672 624 672
WIRE -192 688 -192 672
WIRE 32 688 32 672
WIRE 128 688 128 672
WIRE -64 704 -64 672
WIRE -192 784 -192 768
WIRE -64 784 -64 768
WIRE 32 784 32 752
WIRE 128 784 128 768
WIRE 128 784 32 784
WIRE 272 784 128 784
WIRE 672 784 624 784
WIRE 832 784 672 784
WIRE 928 784 832 784
WIRE 1008 784 928 784
WIRE 128 800 128 784
WIRE 672 800 672 784
WIRE 832 800 832 784
WIRE 928 800 928 784
WIRE 1008 800 1008 784
WIRE 128 896 128 880
WIRE 256 896 256 224
WIRE 272 896 256 896
WIRE 672 896 672 864
WIRE 672 896 624 896
WIRE 832 896 832 880
WIRE 832 896 672 896
WIRE 928 896 928 864
WIRE 1008 896 1008 880
WIRE 832 912 832 896
WIRE 672 928 672 896
WIRE 256 1008 256 896
WIRE 272 1008 256 1008
WIRE 672 1008 672 992
WIRE 672 1008 624 1008
WIRE 832 1008 832 992
WIRE 256 1120 256 1008
WIRE 272 1120 256 1120
WIRE 640 1120 624 1120
WIRE 720 1120 704 1120
WIRE 352 1200 352 1184
WIRE 448 1200 448 1184
WIRE 544 1200 544 1184
FLAG 160 256 0
FLAG 1008 896 0
FLAG 832 1008 0
FLAG 928 896 0
FLAG 32 560 0
FLAG -128 448 0
FLAG -240 448 0
FLAG 352 1200 0
FLAG 448 1200 0
FLAG 544 1200 0
FLAG -240 336 OUT2
FLAG 1008 784 OUT1
FLAG 160 560 0
FLAG 736 448 0
FLAG 720 1120 0
FLAG 128 896 0
FLAG -192 784 0
FLAG -64 784 0
FLAG -192 672 OUT3
FLAG 160 144 IN
SYMBOL voltage 160 144 R0
WINDOW 3 26 96 Left 2
SYMATTR Value 3.3
SYMATTR InstName V1
SYMBOL res 816 784 R0
SYMATTR InstName R1
SYMATTR Value 1Meg
SYMBOL res 816 896 R0
SYMATTR InstName R2
SYMATTR Value 309K
SYMBOL cap 912 800 R0
SYMATTR InstName C1
SYMATTR Value 47µ
SYMATTR SpiceLine Rser=10m
SYMBOL ind 256 352 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 4.7µ
SYMBOL res 96 336 R0
SYMATTR InstName R3
SYMATTR Value 255K
SYMBOL res 16 448 R0
SYMATTR InstName R4
SYMATTR Value 200K
SYMBOL cap -144 368 R0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=10m
SYMBOL ind 656 560 R0
SYMATTR InstName L2
SYMATTR Value 4.7µ
SYMBOL PowerProducts\\LTC3520 448 672 R0
SYMATTR InstName U1
SYMBOL cap 16 352 R0
WINDOW 3 23 58 Left 2
SYMATTR Value 27p
SYMATTR InstName C3
SYMBOL cap 240 544 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .005µ
SYMBOL res 624 464 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 54.9K
SYMBOL cap 656 800 R0
WINDOW 3 40 34 Left 2
WINDOW 39 26 64 Left 2
SYMATTR Value 56p
SYMATTR SpiceLine Rser=10K
SYMATTR InstName C5
SYMBOL cap 640 1104 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value .002µ
SYMBOL cap 656 928 R0
WINDOW 39 26 65 Left 2
WINDOW 3 42 33 Left 2
SYMATTR SpiceLine Rser=15K
SYMATTR Value 470p
SYMATTR InstName C7
SYMBOL pnp 0 656 R180
WINDOW 0 5 65 Right 2
WINDOW 3 10 28 Right 2
SYMATTR InstName Q1
SYMATTR Value 2N4403
SYMBOL res 112 672 R0
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL res 112 784 R0
SYMATTR InstName R7
SYMATTR Value 110K
SYMBOL cap 16 688 R0
SYMATTR InstName C8
SYMATTR Value 33p
SYMBOL cap -80 704 R0
SYMATTR InstName C9
SYMATTR Value 4.7µ
SYMBOL res 992 784 R0
SYMATTR InstName Rload1
SYMATTR Value 3.3
SYMBOL res -256 336 R0
SYMATTR InstName Rload2
SYMATTR Value 3
SYMBOL res -208 672 R0
SYMATTR InstName Rload3
SYMATTR Value 7.5
TEXT 808 1120 Left 2 !.tran 1m startup