Version 4
SHEET 1 1220 1876
WIRE -368 -32 -400 -32
WIRE -208 -32 -368 -32
WIRE 48 -32 16 -32
WIRE 160 -32 128 -32
WIRE 240 -32 224 -32
WIRE 352 -32 240 -32
WIRE 480 -32 352 -32
WIRE 512 -32 480 -32
WIRE 240 16 240 -32
WIRE 352 16 352 -32
WIRE 480 16 480 -32
WIRE -368 64 -368 -32
WIRE -208 64 -256 64
WIRE 240 128 240 80
WIRE -368 208 -368 144
WIRE -32 208 -32 96
WIRE -32 208 -368 208
WIRE 240 208 240 192
WIRE 240 208 -32 208
WIRE 352 208 352 80
WIRE 352 208 240 208
WIRE -368 240 -368 208
WIRE 480 304 480 80
WIRE 480 304 320 304
WIRE -256 320 -256 64
WIRE -32 320 -256 320
WIRE 32 320 -32 320
WIRE 176 320 112 320
WIRE 256 320 176 320
WIRE -32 336 -32 320
WIRE 352 336 320 336
WIRE 352 400 352 336
WIRE -32 416 -32 400
WIRE 176 416 176 320
WIRE 192 416 176 416
WIRE 480 416 480 304
WIRE -32 512 -32 496
WIRE 352 512 352 480
WIRE 480 512 480 480
WIRE 480 512 352 512
WIRE 480 544 480 512
FLAG -368 240 0
FLAG 512 -32 OUT
IOPIN 512 -32 Out
FLAG -400 -32 IN
IOPIN -400 -32 In
FLAG 480 544 0
FLAG -32 512 0
FLAG 192 416 Verr
IOPIN 192 416 In
SYMBOL voltage -368 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 39 43 Left 0
WINDOW 3 38 73 Left 0
SYMATTR InstName Vin
SYMATTR Value 10V
SYMBOL ind2 32 -16 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 4 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 75µH
SYMBOL res2 464 16 R0
SYMATTR InstName Rupper
SYMATTR Value 10k
SYMBOL cap -48 336 R0
SYMATTR InstName CoL
SYMATTR Value 1kF
SYMBOL res2 224 16 R0
SYMATTR InstName Resr
SYMATTR Value 70m
SYMBOL cap 224 128 R0
SYMATTR InstName Cout
SYMATTR Value 220µF
SYMBOL res2 336 16 R0
SYMATTR InstName Rload
SYMATTR Value 20
SYMBOL res2 464 416 R0
SYMATTR InstName Rlower
SYMATTR Value 10k
SYMBOL voltage 352 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 45 45 Left 0
WINDOW 3 45 73 Left 0
SYMATTR InstName V2
SYMATTR Value 2.5V
SYMBOL ind2 16 336 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 4 56 VBottom 0
SYMATTR InstName LoL
SYMATTR Value 1kH
SYMBOL Opamps\\opamp 288 256 M0
WINDOW 0 32 -14 Right 0
WINDOW 39 32 18 Right 0
SYMATTR InstName X2
SYMATTR SpiceLine Aol=1K
SYMBOL voltage -32 400 R0
WINDOW 123 38 101 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 39 43 Left 0
WINDOW 3 38 73 Left 0
SYMATTR Value2 AC 1
SYMATTR InstName Vin1
SYMATTR Value ""
SYMBOL res2 224 -48 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName R6
SYMATTR Value 100m
SYMBOL BUCK-CCM-DCM-VM -64 16 R0
WINDOW 39 -142 -125 Left 0
SYMATTR InstName X3
SYMATTR SpiceLine L=75u Fsw=100k
TEXT -448 528 Left 0 !.tran 20m
TEXT -448 496 Left 0 !.lib opamp.sub
TEXT -448 560 Left 0 !.IC I(L1)=0 V(Verr)=0.505 V(OUT)=5
RECTANGLE Normal 608 592 -480 -128