Version 4
SHEET 1 1076 680
WIRE 64 -288 -192 -288
WIRE 400 -288 112 -288
WIRE 544 -288 400 -288
WIRE 656 -288 624 -288
WIRE 752 -288 656 -288
WIRE 64 -272 64 -288
WIRE 112 -272 112 -288
WIRE 656 -272 656 -288
WIRE 752 -272 752 -288
WIRE 400 -192 400 -288
WIRE 560 -192 400 -192
WIRE 64 -176 64 -192
WIRE 64 -176 -32 -176
WIRE 112 -176 112 -192
WIRE 208 -176 112 -176
WIRE 400 -176 400 -192
WIRE 656 -176 656 -208
WIRE 752 -176 752 -192
WIRE -32 -144 -32 -176
WIRE 208 -144 208 -176
WIRE 400 -80 400 -96
WIRE -528 -64 -544 -64
WIRE -448 -64 -464 -64
WIRE -336 -64 -448 -64
WIRE -80 -64 -272 -64
WIRE 352 -64 256 -64
WIRE -32 -32 -32 -48
WIRE 208 -32 208 -48
WIRE -336 -16 -336 -48
WIRE -192 0 -192 -288
WIRE -32 0 -192 0
WIRE 192 0 -32 0
WIRE 480 0 448 0
WIRE -32 16 -32 0
WIRE -192 32 -192 0
WIRE 400 32 400 16
WIRE -448 48 -448 -64
WIRE 192 64 192 0
WIRE 352 96 352 -64
WIRE 352 96 320 96
WIRE -192 128 -192 112
WIRE -32 128 -32 96
WIRE 64 128 -32 128
WIRE -32 144 -32 128
WIRE 560 160 560 -192
WIRE 560 160 320 160
WIRE -32 224 -32 208
WIRE 480 224 480 0
WIRE 480 224 320 224
WIRE -448 256 -448 112
WIRE -304 256 -448 256
WIRE -112 256 -240 256
WIRE -16 256 -48 256
WIRE 64 256 -16 256
WIRE -448 272 -448 256
WIRE -16 272 -16 256
WIRE 352 288 320 288
WIRE -304 304 -304 272
WIRE 192 352 192 320
WIRE -448 368 -448 352
WIRE -16 368 -16 352
FLAG -192 128 0
FLAG -32 224 0
FLAG 192 352 0
FLAG -16 368 0
FLAG -448 368 0
FLAG 400 32 0
FLAG 208 -32 0
FLAG 752 -176 0
FLAG 656 -176 0
FLAG -32 -32 0
FLAG -336 -16 0
FLAG -304 304 0
FLAG -544 -64 0
FLAG 752 -288 OUT
FLAG 352 288 0
SYMBOL PowerProducts\\LTC3900 192 176 R0
SYMATTR InstName U1
SYMBOL res -48 0 R0
SYMATTR InstName R1
SYMATTR Value 500K
SYMBOL cap -48 144 R0
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL res -32 256 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL cap -48 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 100p
SYMBOL voltage -192 16 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL voltage -448 256 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 10 0 10n 10n 10u 20u)
SYMBOL nmos 256 -144 M0
SYMATTR InstName Q1
SYMATTR Value Si9936DY
SYMBOL ind2 128 -176 R180
WINDOW 0 -17 82 Right 2
WINDOW 3 -8 39 Right 2
SYMATTR InstName L1
SYMATTR Value 1m
SYMATTR Type ind
SYMATTR SpiceLine Rpar=10K
SYMBOL ind2 48 -176 M180
WINDOW 0 -1 80 Right 2
WINDOW 3 -8 38 Right 2
SYMATTR InstName L2
SYMATTR Value 1m
SYMATTR Type ind
SYMATTR SpiceLine Rpar=10K
SYMBOL nmos 448 -80 M0
WINDOW 0 -3 22 Right 2
WINDOW 3 1 61 Right 2
SYMATTR InstName Q2
SYMATTR Value Si9936DY
SYMBOL ind 528 -272 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L3
SYMATTR Value 10µ
SYMATTR SpiceLine Rpar=1K
SYMBOL cap 640 -272 R0
SYMATTR InstName C3
SYMATTR Value 100µ
SYMBOL nmos -80 -144 R0
SYMATTR InstName Q3
SYMATTR Value IRF7201
SYMBOL digital\\buf1 -336 -128 R0
WINDOW 3 25 90 Left 2
SYMATTR Value Vhigh=10
SYMATTR InstName A1
SYMBOL digital\\inv -304 192 R0
WINDOW 3 23 98 Left 2
SYMATTR Value Vhigh=10
SYMATTR InstName A2
SYMBOL diode -464 48 R0
SYMATTR InstName D1
SYMBOL cap -464 -80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100p
SYMBOL res 384 -192 R0
SYMATTR InstName R3
SYMATTR Value 100m
SYMBOL res 736 -288 R0
SYMATTR InstName Rload
SYMATTR Value 1
TEXT 384 288 Left 2 !.tran 1m\n.model D D(Ron=1 Roff=700)
TEXT 88 -296 Bottom 2 !K1 L1 L2 1.