Version 4
SHEET 1 2004 996
WIRE 528 -816 368 -816
WIRE 528 -800 528 -816
WIRE 752 -768 576 -768
WIRE 784 -768 752 -768
WIRE 896 -768 864 -768
WIRE 960 -768 896 -768
WIRE 1040 -768 960 -768
WIRE 576 -752 576 -768
WIRE 960 -752 960 -768
WIRE 1040 -752 1040 -768
WIRE -224 -704 -352 -704
WIRE -48 -704 -224 -704
WIRE 160 -704 -48 -704
WIRE 528 -704 528 -720
WIRE 528 -704 160 -704
WIRE -352 -688 -352 -704
WIRE 528 -688 528 -704
WIRE 368 -656 368 -816
WIRE 576 -656 576 -672
WIRE 640 -656 576 -656
WIRE 784 -656 640 -656
WIRE 896 -656 896 -768
WIRE 896 -656 864 -656
WIRE 960 -656 960 -688
WIRE 1040 -656 1040 -672
WIRE -224 -640 -224 -704
WIRE 160 -624 160 -704
WIRE -352 -592 -352 -608
WIRE 528 -592 528 -608
WIRE -48 -576 -48 -704
WIRE 0 -576 -48 -576
WIRE 320 -576 304 -576
WIRE 896 -576 896 -656
WIRE 992 -576 896 -576
WIRE 368 -544 368 -560
WIRE 896 -528 896 -576
WIRE 992 -528 992 -576
WIRE -96 -512 -128 -512
WIRE 0 -512 -16 -512
WIRE 480 -512 304 -512
WIRE 528 -480 528 -496
WIRE 640 -464 640 -656
WIRE -128 -448 -128 -512
WIRE 0 -448 -128 -448
WIRE 320 -448 304 -448
WIRE 752 -400 752 -768
WIRE 896 -400 896 -448
WIRE 992 -400 992 -464
WIRE 992 -400 896 -400
WIRE -224 -384 -224 -560
WIRE 0 -384 -224 -384
WIRE 592 -384 304 -384
WIRE -224 -368 -224 -384
WIRE 640 -352 640 -368
WIRE -96 -320 -128 -320
WIRE 0 -320 -16 -320
WIRE 704 -320 304 -320
WIRE -224 -288 -224 -304
WIRE 752 -288 752 -304
WIRE 0 -256 -64 -256
WIRE 368 -256 304 -256
WIRE 512 -256 432 -256
WIRE -80 -192 -128 -192
WIRE 0 -192 -16 -192
WIRE 512 -192 512 -256
WIRE 512 -192 304 -192
WIRE 896 -192 896 -400
WIRE 896 -192 512 -192
WIRE 896 -176 896 -192
WIRE 160 -144 160 -160
WIRE 896 -80 896 -96
FLAG -128 -192 0
FLAG 160 -144 0
FLAG -128 -256 0
FLAG -352 -592 0
FLAG 752 -288 0
FLAG 896 -80 0
FLAG 1040 -656 0
FLAG 960 -656 0
FLAG -128 -320 0
FLAG 640 -352 0
FLAG -224 -288 0
FLAG 320 -448 0
FLAG 528 -480 0
FLAG 368 -544 0
FLAG -352 -704 IN
FLAG 1040 -768 OUT
SYMBOL nmos 320 -656 R0
WINDOW 0 52 26 Left 2
WINDOW 3 52 62 Left 2
SYMATTR InstName Q1
SYMATTR Value IRF7201
SYMBOL nmos 480 -592 R0
WINDOW 3 55 65 Left 2
SYMATTR Value IRF7201
SYMATTR InstName Q2
SYMBOL cap -16 -208 R90
WINDOW 3 32 32 VTop 2
WINDOW 0 0 32 VBottom 2
SYMATTR Value 270p
SYMATTR InstName C1
SYMBOL res 0 -528 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 200K
SYMBOL res -240 -656 R0
SYMATTR InstName R2
SYMATTR Value 300K
SYMBOL cap -64 -272 R90
WINDOW 3 32 32 VTop 2
WINDOW 0 0 32 VBottom 2
SYMATTR Value .1µ
SYMATTR InstName C2
SYMBOL voltage -352 -704 R0
WINDOW 3 26 92 Left 2
SYMATTR Value 12
SYMATTR InstName V1
SYMBOL ind2 512 -816 R0
WINDOW 0 -5 37 Right 2
WINDOW 3 -4 74 Right 2
SYMATTR InstName L1
SYMATTR Value 1m
SYMATTR Type ind
SYMATTR SpiceLine Rpar=1K
SYMBOL ind2 512 -704 R0
WINDOW 0 -2 36 Right 2
WINDOW 3 -7 75 Right 2
SYMATTR InstName L2
SYMATTR Value 1m
SYMATTR Type ind
SYMATTR SpiceLine Rpar=1K
SYMBOL ind2 592 -768 M0
WINDOW 0 -4 38 Right 2
WINDOW 3 -4 71 Right 2
SYMATTR InstName L3
SYMATTR Value 1m
SYMATTR Type ind
SYMATTR SpiceLine Rpar=1K
SYMBOL ind 768 -752 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L4
SYMATTR Value 20µ
SYMBOL ind 768 -640 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L5
SYMATTR Value 20µ
SYMBOL res 880 -544 R0
SYMATTR InstName R3
SYMATTR Value 15.8K
SYMBOL res 880 -192 R0
SYMATTR InstName R4
SYMATTR Value 5K
SYMBOL cap 368 -272 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 29 32 VTop 2
WINDOW 39 50 34 VTop 2
SYMATTR InstName C3
SYMATTR Value .003µ
SYMATTR SpiceLine Rser=10K
SYMBOL cap 944 -752 R0
SYMATTR InstName C4
SYMATTR Value 50µ
SYMATTR Value2 Rser=.1
SYMBOL res 0 -336 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL nmos 592 -464 R0
WINDOW 0 59 -6 Left 2
WINDOW 3 59 35 Left 2
SYMATTR InstName Q3
SYMATTR Value IRF7201
SYMBOL nmos 704 -400 R0
WINDOW 0 52 26 Left 2
WINDOW 3 52 62 Left 2
SYMATTR InstName Q4
SYMATTR Value IRF7201
SYMBOL PowerProducts\\LTC3723-2 160 -400 R0
SYMATTR InstName U1
SYMBOL cap -240 -368 R0
SYMATTR Value 270p
SYMATTR InstName C5
SYMBOL cap 976 -528 R0
WINDOW 3 39 34 Left 2
WINDOW 39 28 67 Left 2
SYMATTR Value .001µ
SYMATTR SpiceLine Rser=10K
SYMATTR InstName C6
SYMBOL res 1024 -768 R0
SYMATTR InstName Rload
SYMATTR Value 2.5
TEXT 552 -800 Left 2 !K1 L1 L2 L3 1
TEXT 504 -152 Left 2 !.tran 10m startup