Version 4
SHEET 1 1232 680
WIRE 448 -48 272 -48
WIRE 656 -48 528 -48
WIRE 720 -48 656 -48
WIRE 816 -48 720 -48
WIRE 272 -32 272 -48
WIRE 720 -32 720 -48
WIRE 816 -32 816 -48
WIRE 448 -16 448 -48
WIRE 528 -16 528 -48
WIRE 272 64 272 48
WIRE 720 64 720 32
WIRE 816 64 816 48
WIRE -160 80 -256 80
WIRE 176 80 -160 80
WIRE 528 80 528 64
WIRE -256 96 -256 80
WIRE -160 112 -160 80
WIRE 176 144 176 80
WIRE 480 160 352 160
WIRE 448 176 448 64
WIRE -256 192 -256 176
WIRE -32 192 -48 192
WIRE 48 192 32 192
WIRE 352 192 352 160
WIRE 352 192 304 192
WIRE 528 192 528 176
WIRE 656 224 656 -48
WIRE -160 256 -160 192
WIRE 48 256 -160 256
WIRE 400 256 304 256
WIRE 448 288 448 272
WIRE 448 288 352 288
WIRE 448 304 448 288
WIRE -96 320 -160 320
WIRE 48 320 -32 320
WIRE 352 320 352 288
WIRE 352 320 304 320
WIRE 656 336 656 304
WIRE 656 336 576 336
WIRE 656 352 656 336
WIRE -160 384 -192 384
WIRE -48 384 -80 384
WIRE 48 384 16 384
WIRE 352 384 304 384
WIRE 448 400 448 384
WIRE 352 432 352 384
WIRE 576 432 576 336
WIRE 576 432 352 432
WIRE 656 448 656 432
WIRE 176 464 176 432
FLAG 272 64 0
FLAG 176 464 0
FLAG -48 192 0
FLAG -160 320 0
FLAG -192 384 0
FLAG 448 400 0
FLAG -256 192 0
FLAG 528 192 0
FLAG 816 64 0
FLAG 720 64 0
FLAG 656 448 0
FLAG 816 -48 OUT
SYMBOL PowerProducts\\LTC3806 176 288 R0
SYMATTR InstName U1
SYMBOL cap 32 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 4.7µ
SYMBOL cap -32 304 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value .001µ
SYMBOL cap 16 368 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .001µ
SYMBOL res -64 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 3.4K
SYMBOL nmos 400 176 R0
SYMATTR InstName Q1
SYMATTR Value Si4490DY
SYMBOL res 432 288 R0
SYMATTR InstName R2
SYMATTR Value .056
SYMBOL ind2 432 80 M180
WINDOW 0 -7 83 Right 2
WINDOW 3 -4 41 Right 2
SYMATTR InstName L1
SYMATTR Value 100µ
SYMATTR Type ind
SYMATTR SpiceLine Rpar=5K
SYMBOL ind2 544 -32 M0
WINDOW 0 -3 36 Right 2
WINDOW 3 -4 74 Right 2
SYMATTR InstName L2
SYMATTR Value 50µ
SYMATTR Type ind
SYMBOL nmos 480 80 R0
SYMATTR InstName Q2
SYMATTR Value Si4490DY
SYMBOL voltage -256 80 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage 272 -48 R0
SYMATTR InstName V2
SYMATTR Value 50
SYMBOL cap 704 -32 R0
SYMATTR InstName C4
SYMATTR Value 470µ
SYMATTR SpiceLine Rser=50m
SYMBOL res 640 208 R0
SYMATTR InstName R3
SYMATTR Value 21K
SYMBOL res 640 336 R0
SYMATTR InstName R4
SYMATTR Value 12.4K
SYMBOL res -176 96 R0
SYMATTR InstName R5
SYMATTR Value 1Meg
SYMBOL res 800 -48 R0
SYMATTR InstName Rload
SYMATTR Value 1.1
TEXT 480 -48 Bottom 2 !K1 L1 L2 1
TEXT 304 464 Left 2 !.tran 1.5m startup