Version 4
SHEET 1 1204 724
WIRE 384 80 96 80
WIRE 560 80 464 80
WIRE 784 80 560 80
WIRE 896 80 784 80
WIRE 96 128 96 80
WIRE 784 128 784 80
WIRE 896 128 896 80
WIRE 560 144 560 80
WIRE 96 256 96 208
WIRE 560 256 560 208
WIRE 784 256 784 208
WIRE 896 256 896 208
WIRE 352 432 96 432
WIRE 560 432 448 432
WIRE 640 432 560 432
WIRE 816 432 720 432
WIRE 1040 432 816 432
WIRE 1152 432 1040 432
WIRE 560 480 560 432
WIRE 1040 480 1040 432
WIRE 1152 480 1152 432
WIRE 816 496 816 432
WIRE 256 512 192 512
WIRE 368 512 368 480
WIRE 368 512 336 512
WIRE 96 560 96 432
WIRE 192 560 192 512
WIRE 560 608 560 544
WIRE 816 608 816 560
WIRE 1040 608 1040 560
WIRE 1152 608 1152 560
WIRE 192 688 192 640
WIRE 96 704 96 640
FLAG 96 256 0
FLAG 560 256 0
FLAG 96 80 in
FLAG 560 80 out
FLAG 896 256 0
FLAG 784 256 0
FLAG 192 688 0
FLAG 816 608 0
FLAG 192 512 g2
FLAG 816 432 out2
FLAG 1152 608 0
FLAG 1040 608 0
FLAG 560 608 0
FLAG 96 704 0
SYMBOL voltage 96 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 5 0 20n 20n 0.98u 1.23u)
SYMATTR SpiceLine Rser=10m
SYMBOL ind 368 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 39 -45 62 VTop 2
SYMATTR InstName L1
SYMATTR Value 1µ
SYMATTR SpiceLine Rser=10m
SYMBOL cap 544 144 R0
WINDOW 39 24 84 Left 2
WINDOW 40 43 112 Left 2
SYMATTR InstName C1
SYMATTR Value 22µ
SYMATTR SpiceLine Rser=10m
SYMATTR SpiceLine2 Lser=2n
SYMBOL current 896 128 R0
SYMATTR InstName I1
SYMATTR Value 4
SYMBOL res 768 112 R0
SYMATTR InstName R1
SYMATTR Value 3.3
SYMBOL voltage 192 544 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 20n 20n 0.25u 1.23u)
SYMATTR SpiceLine Rser=10m
SYMBOL ind 624 448 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 39 -45 62 VTop 2
SYMATTR InstName L2
SYMATTR Value 1µ
SYMATTR SpiceLine Rser=10m
SYMBOL cap 800 496 R0
WINDOW 39 24 84 Left 2
WINDOW 40 42 112 Left 2
SYMATTR InstName C2
SYMATTR Value 22µ
SYMATTR SpiceLine Rser=10m
SYMATTR SpiceLine2 Lser=2n
SYMBOL current 1152 480 R0
SYMATTR InstName I2
SYMATTR Value 4
SYMBOL res 1024 464 R0
SYMATTR InstName R2
SYMATTR Value 3.3
SYMBOL schottky 544 544 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
SYMBOL pmos 448 480 M270
WINDOW 0 66 52 VLeft 2
WINDOW 3 91 79 VLeft 2
SYMATTR InstName M1
SYMATTR Value Si4403DY
SYMBOL res 240 528 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 5
SYMBOL voltage 96 544 R0
SYMATTR InstName V3
SYMATTR Value 5
TEXT 80 -64 Left 2 !.tran 0 1m 0.99m 10n
TEXT 144 -8 Left 2 ;Ersatzschaltbild Idealer Synchroner Abwärtswandler (2 Mosfets)
TEXT 320 352 Left 2 ;Abwärtswandler mit Diode