Version 4
SHEET 1 2560 756
WIRE 768 -432 672 -432
WIRE 944 -432 768 -432
WIRE 1776 -432 944 -432
WIRE 1856 -432 1776 -432
WIRE 672 -416 672 -432
WIRE 1328 -416 1200 -416
WIRE 1440 -416 1328 -416
WIRE 1520 -416 1440 -416
WIRE 1632 -416 1520 -416
WIRE 768 -400 768 -432
WIRE 1440 -384 1440 -416
WIRE 1520 -384 1520 -416
WIRE 1632 -384 1632 -416
WIRE 1856 -336 1856 -432
WIRE 672 -320 672 -336
WIRE 944 -320 944 -432
WIRE 1072 -320 1072 -352
WIRE 1200 -320 1200 -416
WIRE 1328 -320 1328 -416
WIRE 1440 -304 1440 -320
WIRE 768 -256 768 -320
WIRE 864 -256 768 -256
WIRE 1808 -256 1408 -256
WIRE 448 -192 416 -192
WIRE 864 -192 528 -192
WIRE 1520 -192 1520 -320
WIRE 1520 -192 1408 -192
WIRE 1856 -192 1856 -240
WIRE 1856 -192 1712 -192
WIRE 1936 -192 1856 -192
WIRE 2000 -192 1936 -192
WIRE 2096 -192 2080 -192
WIRE 2112 -192 2096 -192
WIRE 2208 -192 2192 -192
WIRE 2272 -192 2208 -192
WIRE 2320 -192 2272 -192
WIRE 1936 -176 1936 -192
WIRE 2320 -176 2320 -192
WIRE 1856 -144 1856 -192
WIRE 640 -128 608 -128
WIRE 768 -128 720 -128
WIRE 864 -128 832 -128
WIRE 1520 -128 1408 -128
WIRE 1712 -128 1712 -192
WIRE 1712 -128 1520 -128
WIRE 1936 -96 1936 -112
WIRE 2320 -80 2320 -96
WIRE 704 -64 608 -64
WIRE 864 -64 768 -64
WIRE 1808 -64 1408 -64
WIRE 1856 -32 1856 -48
WIRE 624 0 608 0
WIRE 768 0 704 0
WIRE 864 0 832 0
WIRE 2096 0 2096 -192
WIRE 2096 0 1408 0
WIRE 864 64 832 64
WIRE 2208 64 2208 -192
WIRE 2208 64 1408 64
WIRE 1776 112 1776 -432
WIRE 864 128 832 128
WIRE 1440 128 1408 128
WIRE 832 192 832 128
WIRE 864 192 832 192
WIRE 1728 192 1408 192
WIRE 864 256 832 256
WIRE 1632 256 1632 -320
WIRE 1632 256 1408 256
WIRE 1776 256 1776 208
WIRE 1776 256 1712 256
WIRE 1856 256 1776 256
WIRE 1936 256 1856 256
WIRE 2032 256 2016 256
WIRE 2048 256 2032 256
WIRE 2144 256 2128 256
WIRE 2272 256 2272 -192
WIRE 2272 256 2144 256
WIRE 1856 272 1856 256
WIRE 2272 288 2272 256
WIRE 2272 288 2208 288
WIRE 1776 304 1776 256
WIRE 2272 304 2272 288
WIRE 832 320 832 256
WIRE 864 320 832 320
WIRE 1632 320 1408 320
WIRE 1712 320 1712 256
WIRE 1712 320 1632 320
WIRE 1856 352 1856 336
WIRE 864 384 832 384
WIRE 1728 384 1408 384
WIRE 2272 384 2272 368
WIRE 2272 384 2240 384
WIRE 1776 416 1776 400
WIRE 2272 416 2272 384
WIRE 864 448 832 448
WIRE 2032 448 2032 256
WIRE 2032 448 1408 448
WIRE 864 512 832 512
WIRE 2144 512 2144 256
WIRE 2144 512 1408 512
WIRE 864 576 832 576
WIRE 2208 576 2208 288
WIRE 2208 576 1408 576
WIRE 864 640 832 640
WIRE 2240 640 2240 384
WIRE 2240 640 1408 640
WIRE 1024 720 1024 704
WIRE 1248 720 1248 704
FLAG 1856 -32 0
FLAG 1936 -96 0
FLAG 1776 416 0
FLAG 1856 352 0
FLAG 1248 720 0
FLAG 1024 720 0
FLAG 2272 416 0
FLAG 608 0 0
FLAG 608 -64 0
FLAG 672 -320 0
FLAG 2320 -80 0
FLAG 416 -192 0
FLAG 608 -128 0
FLAG 1440 -304 0
FLAG 832 64 0
FLAG 832 640 0
FLAG 2320 -192 OUT
FLAG 832 576 0
FLAG 832 512 0
FLAG 832 448 0
FLAG 832 384 0
FLAG 672 -432 IN
SYMBOL NMOS 1808 -336 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL polcap 1504 -192 R0
WINDOW 3 34 44 Left 2
SYMATTR Value .47µ
SYMATTR InstName C1
SYMBOL nmos 1808 -144 R0
WINDOW 0 56 4 Left 2
WINDOW 3 60 88 Left 2
SYMATTR InstName Q2
SYMATTR Value FDS6680A
SYMBOL schottky 1504 -384 R0
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL ind 1984 -176 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1µ
SYMBOL RES 2096 -208 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 2m
SYMBOL schottky 1920 -112 M180
WINDOW 0 37 61 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL nmos 1728 112 R0
SYMATTR InstName Q3
SYMATTR Value FDS6680A
SYMBOL polcap 1616 256 R0
WINDOW 3 24 52 Left 2
SYMATTR Value .47µ
SYMATTR InstName C2
SYMBOL nmos 1728 304 R0
WINDOW 0 56 4 Left 2
WINDOW 3 60 88 Left 2
SYMATTR InstName Q4
SYMATTR Value FDS6680A
SYMBOL ind 1920 272 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 1µ
SYMBOL schottky 1840 336 M180
WINDOW 0 35 58 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value 1N5818
SYMBOL polcap 2256 304 R0
WINDOW 123 28 86 Left 2
SYMATTR Value2 x2
SYMATTR SpiceLine Rser=10m
SYMATTR InstName C3
SYMATTR Value 1000µ
SYMBOL cap 832 -16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 1000p
SYMBOL res 720 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap 768 -80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 250p
SYMBOL schottky 1616 -384 R0
SYMATTR InstName D4
SYMATTR Value 1N5818
SYMBOL VOLTAGE 672 -432 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL RES 2032 240 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 2m
SYMBOL res 736 -144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL cap 832 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value .01µ
SYMBOL polcap 1424 -384 R0
SYMATTR InstName C7
SYMATTR Value 1µ
SYMBOL voltage 544 -192 R90
WINDOW 3 31 57 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 -41 58 VBottom 2
SYMATTR Value SINE(.5 .5 200K)
SYMATTR InstName V2
SYMBOL POWERPRODUCTS\\LTC3716 1136 192 R0
SYMATTR InstName U1
SYMBOL RES 752 -416 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res 2304 -192 R0
SYMATTR InstName Rload
SYMATTR Value .5
TEXT 1528 696 Left 2 !.tran 1m startup