Version 4 SHEET 1 972 680 WIRE 608 -16 64 -16 WIRE 64 64 64 -16 WIRE 96 64 64 64 WIRE 432 64 384 64 WIRE 432 80 432 64 WIRE 96 160 -144 160 WIRE 432 160 432 144 WIRE 432 160 384 160 WIRE 496 160 432 160 WIRE 608 160 608 -16 WIRE 608 160 576 160 WIRE 704 160 608 160 WIRE 800 160 704 160 WIRE -144 176 -144 160 WIRE 432 176 432 160 WIRE 704 176 704 160 WIRE 800 176 800 160 WIRE 0 256 -32 256 WIRE 96 256 80 256 WIRE 432 256 432 240 WIRE 432 256 384 256 WIRE 608 256 608 160 WIRE -144 272 -144 256 WIRE 704 272 704 240 WIRE 800 272 800 256 WIRE 0 352 -32 352 WIRE 96 352 64 352 WIRE 608 352 608 336 WIRE 608 352 384 352 WIRE 608 368 608 352 WIRE 240 416 240 400 WIRE 608 464 608 448 FLAG 608 464 0 FLAG 704 272 0 FLAG 240 416 0 FLAG -144 272 0 FLAG -32 352 0 FLAG -32 256 0 FLAG -144 160 IN FLAG 800 272 0 FLAG 800 160 OUT SYMBOL PowerProducts\\LT3509 240 208 R0 SYMATTR InstName U1 SYMBOL ind 480 176 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L1 SYMATTR Value 10µ SYMATTR SpiceLine Rpar=1K SYMBOL schottky 416 240 M180 WINDOW 0 35 53 Left 0 WINDOW 3 24 0 Left 0 SYMATTR InstName D1 SYMATTR Value MBRS140 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 416 80 R0 WINDOW 3 25 55 Left 0 SYMATTR Value .1µ SYMATTR InstName C1 SYMBOL res 592 240 R0 SYMATTR InstName R1 SYMATTR Value 53.6K SYMBOL res 592 352 R0 SYMATTR InstName R2 SYMATTR Value 10.2K SYMBOL cap 688 176 R0 SYMATTR InstName C2 SYMATTR Value 22µ SYMBOL res 96 240 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 60.4K SYMBOL cap 64 336 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C3 SYMATTR Value .001µ SYMBOL voltage -144 160 R0 WINDOW 3 26 99 Left 0 SYMATTR Value 10 SYMATTR InstName V1 SYMBOL res 784 160 R0 SYMATTR InstName Rload SYMATTR Value 10K TEXT 728 368 Left 0 !.tran 5m startup