Version 4
SHEET 1 1892 1012
WIRE 560 80 432 80
WIRE 864 80 704 80
WIRE 1024 80 864 80
WIRE 1248 80 1024 80
WIRE 1424 80 1328 80
WIRE 1456 80 1424 80
WIRE 1552 80 1456 80
WIRE 432 96 432 80
WIRE 560 96 560 80
WIRE 608 96 560 96
WIRE 704 96 704 80
WIRE 704 96 656 96
WIRE 1024 96 1024 80
WIRE 1456 96 1456 80
WIRE 1552 96 1552 80
WIRE 608 176 560 176
WIRE 704 176 656 176
WIRE 976 176 960 176
WIRE 432 192 432 176
WIRE 560 192 560 176
WIRE 704 192 704 176
WIRE 1456 192 1456 160
WIRE 1552 192 1552 176
WIRE 1024 208 1024 192
WIRE 1152 224 1136 224
WIRE 1248 224 1232 224
WIRE 1344 224 1248 224
WIRE 1344 240 1344 224
WIRE 512 272 496 272
WIRE 768 272 752 272
WIRE 560 304 560 288
WIRE 560 304 528 304
WIRE 704 304 704 288
WIRE 1152 304 1056 304
WIRE 1248 304 1248 224
WIRE 1248 304 1152 304
WIRE 560 320 560 304
WIRE 768 336 768 272
WIRE 864 336 864 80
WIRE 960 336 960 176
WIRE 1056 336 1056 304
WIRE 1152 336 1152 304
WIRE 1248 336 1248 304
WIRE 1344 336 1344 320
WIRE 704 400 672 400
WIRE 1424 400 1424 80
WIRE 1424 400 1408 400
WIRE 560 416 560 400
WIRE 528 464 528 304
WIRE 704 464 528 464
WIRE 1424 464 1408 464
WIRE 496 528 496 272
WIRE 704 528 496 528
WIRE 1424 528 1408 528
WIRE 1520 528 1504 528
WIRE 1536 528 1520 528
WIRE 1632 528 1616 528
WIRE 1520 592 1520 528
WIRE 1520 592 1408 592
WIRE 624 656 608 656
WIRE 704 656 688 656
WIRE 1456 656 1408 656
WIRE 1536 656 1520 656
WIRE 1248 736 1248 720
WIRE 1344 736 1344 720
WIRE 768 752 768 720
WIRE 864 752 864 720
WIRE 960 752 960 720
WIRE 1056 752 1056 720
WIRE 1152 752 1152 720
WIRE 1248 832 1248 816
WIRE 1344 832 1344 816
FLAG 864 752 0
FLAG 768 752 0
FLAG 960 752 0
FLAG 1248 832 0
FLAG 608 656 0
FLAG 1536 656 0
FLAG 1024 208 0
FLAG 1456 192 0
FLAG 1552 192 0
FLAG 1632 528 0
FLAG 1056 752 0
FLAG 1152 752 0
FLAG 1344 832 0
FLAG 1424 464 0
FLAG 560 416 0
FLAG 672 400 0
FLAG 432 192 0
FLAG 704 304 0
FLAG 432 80 IN
FLAG 1552 80 OUT
FLAG 1136 224 0
SYMBOL res 1232 720 R0
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL cap 688 640 R90
WINDOW 3 32 32 VTop 2
WINDOW 0 0 32 VBottom 2
SYMATTR Value .0025µ
SYMATTR InstName C1
SYMBOL cap 1440 96 R0
SYMATTR InstName C2
SYMATTR Value 330µ
SYMBOL res 1408 544 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 110K
SYMBOL res 1520 544 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 24.9K
SYMBOL PowerProducts\\LTC3706 1056 528 R0
SYMATTR InstName U1
SYMBOL res 1328 720 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL cap 1456 672 R270
WINDOW 3 0 32 VBottom 2
WINDOW 39 -27 30 VBottom 2
WINDOW 0 32 32 VTop 2
SYMATTR Value 330p
SYMATTR SpiceLine Rser=24K
SYMATTR InstName C3
SYMBOL ind2 592 80 R0
WINDOW 0 -1 34 Right 2
WINDOW 3 -3 72 Right 2
SYMATTR InstName L1
SYMATTR Value 490µ
SYMATTR Type ind
SYMATTR SpiceLine Rpar=10K
SYMBOL ind2 672 80 M0
WINDOW 0 -7 36 Right 2
WINDOW 3 -7 73 Right 2
SYMATTR InstName L2
SYMATTR Value 40µ
SYMATTR Type ind
SYMATTR SpiceLine Rpar=2K
SYMBOL nmos 512 192 R0
WINDOW 0 55 33 Left 2
WINDOW 3 52 59 Left 2
SYMATTR InstName Q1
SYMATTR Value Si4484EY
SYMBOL res 544 304 R0
SYMATTR InstName R5
SYMATTR Value 20m
SYMBOL voltage 432 80 R0
SYMATTR InstName V1
SYMATTR Value 36
SYMBOL nmos 752 192 M0
WINDOW 0 -2 30 Right 2
WINDOW 3 1 61 Right 2
SYMATTR InstName Q2
SYMATTR Value Si4490DY
SYMBOL nmos 976 96 R0
WINDOW 0 61 23 Left 2
WINDOW 3 57 90 Left 2
SYMATTR InstName Q3
SYMATTR Value Si4490DY
SYMBOL res 1328 224 R0
SYMATTR InstName R6
SYMATTR Value 20K
SYMBOL voltage 1248 224 R90
WINDOW 3 32 56 VTop 2
WINDOW 0 -32 56 VBottom 2
SYMATTR Value 7.5
SYMATTR InstName V2
SYMBOL ind 1232 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L3
SYMATTR Value 1.5µ
SYMATTR SpiceLine Rpar=2K
SYMBOL res 1536 80 R0
SYMATTR InstName Rload
SYMATTR Value 1
TEXT 1496 800 Left 2 !.tran 1m startup
TEXT 632 96 Bottom 2 !K1 L1 L2 1