Version 4
SHEET 1 880 680
WIRE -48 32 -144 32
WIRE 128 32 32 32
WIRE 192 32 128 32
WIRE 336 32 272 32
WIRE 432 32 336 32
WIRE 496 32 432 32
WIRE -144 80 -144 32
WIRE 496 80 496 32
WIRE -32 96 -32 80
WIRE 336 96 336 32
WIRE 128 112 128 32
WIRE 16 128 16 80
WIRE -144 240 -144 160
WIRE 16 240 16 208
WIRE 16 240 -144 240
WIRE 128 240 128 176
WIRE 128 240 16 240
WIRE 336 240 336 160
WIRE 336 240 128 240
WIRE 496 240 496 160
WIRE 496 240 336 240
WIRE -144 256 -144 240
FLAG -144 256 0
FLAG 432 32 out
FLAG -144 32 in
FLAG -32 96 0
SYMBOL cap 320 96 R0
WINDOW 39 24 84 Left 2
SYMATTR InstName C1
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=0.05
SYMBOL ind 176 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 39 -51 61 VTop 2
SYMATTR InstName L1
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=0.1
SYMBOL voltage -144 64 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL Misc\\EuropeanResistor 480 64 R0
SYMATTR InstName R1
SYMATTR Value 5
SYMBOL sw -64 32 R270
SYMATTR InstName S1
SYMBOL voltage 16 112 R0
WINDOW 3 -53 159 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 10n 10n 3.32u 10u)
SYMBOL schottky 112 176 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBR735
SYMATTR Description Diode
SYMATTR Type diode
TEXT -168 360 Left 2 !.model SW SW(Ron=0.02 Roff=10G Vt=2.5)
TEXT -168 400 Left 2 !.tran 0 3m 0 20n
TEXT -80 -144 Left 4 ;Vout = Vin*Ton/Tper