Version 4
SHEET 1 5424 6220
WIRE -80 -144 -176 -144
WIRE 16 -144 -80 -144
WIRE 96 -144 16 -144
WIRE 176 -144 96 -144
WIRE 256 -144 176 -144
WIRE 336 -144 256 -144
WIRE -176 -128 -176 -144
WIRE 96 -128 96 -144
WIRE 176 -128 176 -144
WIRE 256 -128 256 -144
WIRE 336 -128 336 -144
WIRE -176 -32 -176 -48
WIRE 16 -32 16 -144
WIRE 96 -32 96 -48
WIRE 176 -32 176 -48
WIRE 256 -32 256 -48
WIRE 336 -32 336 -48
WIRE -80 32 -80 -144
WIRE -48 32 -80 32
WIRE 416 32 400 32
WIRE 464 32 416 32
WIRE 560 32 464 32
WIRE 704 32 560 32
WIRE 816 32 704 32
WIRE 704 48 704 32
WIRE 816 48 816 32
WIRE 464 64 464 32
WIRE 560 64 560 32
WIRE 416 80 416 32
WIRE 416 80 400 80
WIRE -48 128 -64 128
WIRE 416 128 416 80
WIRE 416 128 400 128
WIRE 704 144 704 112
WIRE 816 144 816 128
WIRE 416 176 416 128
WIRE 416 176 400 176
WIRE 464 176 464 144
WIRE 560 176 560 128
WIRE 560 176 464 176
WIRE -48 224 -64 224
WIRE 416 224 416 176
WIRE 416 224 400 224
WIRE -48 320 -64 320
WIRE 464 320 464 176
WIRE 464 320 400 320
WIRE 496 320 464 320
WIRE 592 320 576 320
WIRE -256 416 -368 416
WIRE -48 416 -256 416
WIRE 512 416 400 416
WIRE 608 416 576 416
WIRE -368 432 -368 416
WIRE -256 432 -256 416
WIRE -144 512 -160 512
WIRE -48 512 -64 512
WIRE 416 512 400 512
WIRE 496 512 480 512
WIRE -368 528 -368 496
WIRE -256 528 -256 512
WIRE -144 608 -160 608
WIRE -48 608 -64 608
WIRE 416 608 400 608
WIRE 16 688 16 672
WIRE 96 688 96 672
WIRE 176 688 176 672
WIRE 256 688 256 672
WIRE 336 688 336 672
FLAG -176 -32 0
FLAG -64 320 0
FLAG 16 688 0
FLAG 96 688 0
FLAG 176 688 0
FLAG 256 688 0
FLAG 336 688 0
FLAG -160 512 0
FLAG -160 608 0
FLAG -256 528 0
FLAG -368 528 0
FLAG 496 512 0
FLAG 608 416 0
FLAG 592 320 0
FLAG 704 144 0
FLAG 816 144 0
FLAG 816 32 OUT
FLAG -176 -144 IN
FLAG -64 224 0
SYMBOL LTC3425 176 320 R0
SYMATTR InstName U1
SYMBOL ind 80 -144 R0
SYMATTR InstName L1
SYMATTR Value 2.7µ
SYMATTR SpiceLine Rpar=2K
SYMBOL voltage -176 -144 R0
SYMATTR InstName V1
SYMATTR Value 1.8
SYMBOL res -48 592 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 75K
SYMBOL res -48 496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 15K
SYMBOL res -272 416 R0
SYMATTR InstName R3
SYMATTR Value 20K
SYMBOL cap -384 432 R0
SYMATTR InstName C2
SYMATTR Value .001µ
SYMBOL cap 416 528 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 1000p
SYMBOL cap 512 432 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
WINDOW 39 -28 37 VBottom 2
SYMATTR InstName C4
SYMATTR Value 330p
SYMATTR SpiceLine Rser=33K
SYMBOL res 448 48 R0
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL res 480 336 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 590K
SYMBOL cap 544 64 R0
WINDOW 39 24 60 Left 2
WINDOW 3 42 35 Left 2
SYMATTR SpiceLine Rser=10K
SYMATTR Value 22p
SYMATTR InstName C5
SYMBOL cap 688 48 R0
WINDOW 3 40 34 Left 2
WINDOW 40 29 56 Left 2
SYMATTR Value 4.7µ
SYMATTR SpiceLine2 x4
SYMATTR InstName C6
SYMATTR SpiceLine Rser=.01
SYMBOL res 800 32 R0
SYMATTR InstName R6
SYMATTR Value 50
SYMBOL ind 160 -144 R0
SYMATTR InstName L2
SYMATTR Value 2.7µ
SYMATTR SpiceLine Rpar=2K
SYMBOL ind 240 -144 R0
SYMATTR InstName L3
SYMATTR Value 2.7µ
SYMATTR SpiceLine Rpar=2K
SYMBOL ind 320 -144 R0
SYMATTR InstName L4
SYMATTR Value 2.7µ
SYMATTR SpiceLine Rpar=2K
TEXT 496 640 Left 2 !.tran .75m startup