Version 4 SHEET 1 1424 864 WIRE 592 -368 160 -368 WIRE 352 -352 32 -352 WIRE 1040 -352 352 -352 WIRE 32 -336 32 -352 WIRE 352 -336 352 -352 WIRE 560 -272 544 -272 WIRE 592 -272 592 -368 WIRE 960 -272 784 -272 WIRE 1136 -272 960 -272 WIRE 1248 -272 1136 -272 WIRE 784 -256 784 -272 WIRE 1136 -256 1136 -272 WIRE 1248 -256 1248 -272 WIRE 32 -240 32 -256 WIRE 960 -240 960 -272 WIRE 160 -176 160 -368 WIRE 160 -176 144 -176 WIRE 176 -176 160 -176 WIRE 736 -176 544 -176 WIRE 960 -160 960 -176 WIRE 1248 -160 1248 -176 WIRE 1136 -144 1136 -176 WIRE 1136 -144 1088 -144 WIRE 1136 -128 1136 -144 WIRE 592 -80 592 -208 WIRE 592 -80 544 -80 WIRE 592 -64 592 -80 WIRE 1136 -32 1136 -48 WIRE 176 16 160 16 WIRE 592 16 592 0 WIRE 592 16 544 16 WIRE 784 16 784 -160 WIRE 784 16 592 16 WIRE 800 16 784 16 WIRE 928 16 880 16 WIRE 944 16 928 16 WIRE 1040 16 1040 -352 WIRE 1040 16 1024 16 WIRE 784 32 784 16 WIRE 736 112 544 112 WIRE 784 144 784 128 WIRE 176 208 160 208 WIRE 1040 208 1040 16 WIRE 1040 208 544 208 WIRE 176 304 160 304 WIRE 928 304 928 16 WIRE 928 304 544 304 WIRE 80 400 48 400 WIRE 176 400 144 400 WIRE 1088 400 1088 -144 WIRE 1088 400 544 400 WIRE -16 496 -48 496 WIRE 176 496 48 496 WIRE 560 496 544 496 FLAG 80 -176 0 FLAG 32 -240 0 FLAG 960 -160 0 FLAG 1248 -160 0 FLAG 1248 -272 OUT FLAG 32 -352 IN FLAG 1136 -32 0 FLAG 160 208 0 FLAG -48 496 0 FLAG 784 144 0 FLAG 48 400 0 FLAG 160 16 0 FLAG 160 304 0 FLAG 560 496 0 SYMBOL cap 144 -192 R90 WINDOW 3 32 32 VTop 2 WINDOW 0 0 32 VBottom 2 SYMATTR Value 4.7µ SYMATTR InstName C1 SYMBOL voltage 32 -352 R0 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL cap 944 -240 R0 SYMATTR InstName C3 SYMATTR Value 220µ SYMATTR SpiceLine Rser=10m SYMBOL res 1120 -144 R0 SYMATTR InstName R4 SYMATTR Value 12.1K SYMBOL res 1120 -272 R0 SYMATTR InstName R5 SYMATTR Value 232K SYMBOL cap 48 480 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 62 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 15n SYMATTR SpiceLine Rser=8.66K Cpar=100p SYMBOL res 1040 32 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 4m SYMBOL ind 896 32 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=10m SYMBOL nmos 736 -256 R0 WINDOW 0 56 21 Left 2 WINDOW 3 54 125 Left 2 SYMATTR InstName Q3 SYMATTR Value Si4840DY SYMBOL nmos 736 32 R0 WINDOW 0 57 40 Left 2 WINDOW 3 63 102 Left 2 SYMATTR InstName Q4 SYMATTR Value Si4840DY SYMBOL cap 576 -64 R0 SYMATTR InstName C6 SYMATTR Value .1µ SYMBOL schottky 576 -272 R0 WINDOW 3 23 69 Left 2 SYMATTR Value MBR0540 SYMATTR InstName D2 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 1232 -272 R0 SYMATTR InstName Rload SYMATTR Value 10 SYMBOL PowerProducts\\LTC3769 352 112 R0 SYMATTR InstName U1 SYMBOL cap 144 384 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value .002µ TEXT 872 440 Left 2 !.tran 1.5m startup