Version 4
SHEET 1 4584 1472
WIRE 2384 656 2272 656
WIRE 2896 656 2384 656
WIRE 3536 656 2896 656
WIRE 3968 656 3536 656
WIRE 2272 672 2272 656
WIRE 2384 704 2384 656
WIRE 2688 720 2432 720
WIRE 2896 720 2896 656
WIRE 3056 720 3056 688
WIRE 3376 720 3376 688
WIRE 3536 720 3536 656
WIRE 3968 720 3968 656
WIRE 3920 736 3888 736
WIRE 2272 768 2272 752
WIRE 2688 800 2688 720
WIRE 2816 800 2688 800
WIRE 3888 800 3888 736
WIRE 3888 800 3616 800
WIRE 2176 832 2160 832
WIRE 2272 832 2256 832
WIRE 2288 832 2272 832
WIRE 2384 832 2384 800
WIRE 2384 832 2368 832
WIRE 3968 832 3968 816
WIRE 4000 832 3968 832
WIRE 4096 832 4080 832
WIRE 4128 832 4096 832
WIRE 4224 832 4208 832
WIRE 2272 880 2272 832
WIRE 2736 880 2272 880
WIRE 2816 880 2736 880
WIRE 3648 880 3616 880
WIRE 4096 880 4096 832
WIRE 4096 880 3648 880
WIRE 2160 960 2160 832
WIRE 2160 960 2032 960
WIRE 2544 960 2160 960
WIRE 2736 960 2736 944
WIRE 2736 960 2544 960
WIRE 2816 960 2736 960
WIRE 3648 960 3648 944
WIRE 3648 960 3616 960
WIRE 3856 960 3648 960
WIRE 4224 960 4224 832
WIRE 4224 960 3856 960
WIRE 4352 960 4224 960
WIRE 2032 976 2032 960
WIRE 2160 976 2160 960
WIRE 4224 976 4224 960
WIRE 4352 976 4352 960
WIRE 2384 992 2384 832
WIRE 2384 992 2272 992
WIRE 3968 992 3968 832
WIRE 4112 992 3968 992
WIRE 2384 1008 2384 992
WIRE 4112 1024 4112 992
WIRE 2272 1040 2272 992
WIRE 2816 1040 2464 1040
WIRE 3888 1040 3616 1040
WIRE 2032 1072 2032 1056
WIRE 2160 1072 2160 1040
WIRE 3888 1072 3888 1040
WIRE 3920 1072 3888 1072
WIRE 4224 1072 4224 1040
WIRE 4352 1072 4352 1056
WIRE 2464 1088 2464 1040
WIRE 2464 1088 2432 1088
WIRE 2544 1088 2544 960
WIRE 3856 1088 3856 960
WIRE 3968 1104 3968 1088
WIRE 2640 1120 2624 1120
WIRE 2720 1120 2704 1120
WIRE 2816 1120 2800 1120
WIRE 3632 1120 3616 1120
WIRE 3728 1120 3712 1120
WIRE 3808 1120 3792 1120
WIRE 4112 1120 4112 1088
WIRE 2272 1136 2272 1104
WIRE 2384 1136 2384 1104
WIRE 2544 1200 2544 1168
WIRE 2816 1200 2544 1200
WIRE 3856 1200 3856 1168
WIRE 3856 1200 3616 1200
WIRE 2544 1216 2544 1200
WIRE 3856 1216 3856 1200
WIRE 2896 1296 2896 1280
WIRE 3040 1296 3040 1280
WIRE 3168 1296 3168 1280
WIRE 3264 1296 3264 1280
WIRE 3392 1296 3392 1280
WIRE 3536 1296 3536 1280
WIRE 2544 1312 2544 1296
WIRE 3856 1312 3856 1296
WIRE 3168 1376 3168 1360
WIRE 3264 1376 3264 1360
FLAG 3536 1296 0
FLAG 3392 1296 0
FLAG 3264 1376 0
FLAG 3168 1376 0
FLAG 3040 1296 0
FLAG 2896 1296 0
FLAG 2624 1120 0
FLAG 4224 1072 0
FLAG 3968 1104 0
FLAG 4112 1120 0
FLAG 2160 1072 0
FLAG 2384 1136 0
FLAG 2272 1136 0
FLAG 4352 1072 0
FLAG 2032 1072 0
FLAG 2272 768 0
FLAG 3808 1120 0
FLAG 2544 1312 0
FLAG 3856 1312 0
FLAG 2272 656 IN
FLAG 2032 960 OUT1
FLAG 4352 960 OUT2
SYMBOL RES 2816 1104 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL cap 2704 1104 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 3300p
SYMBOL cap 3248 1296 R0
SYMATTR InstName C2
SYMATTR Value 390p
SYMBOL cap 3152 1296 R0
SYMATTR InstName C3
SYMATTR Value 590p
SYMBOL NMOS 3920 992 R0
WINDOW 3 54 84 Left 2
SYMATTR Value FDS6680A
SYMATTR InstName Q1
SYMBOL cap 3632 880 R0
WINDOW 0 32 19 Left 2
WINDOW 3 25 56 Left 2
SYMATTR InstName C4
SYMATTR Value 1000p
SYMBOL ind 3984 848 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 50µ
SYMBOL res 4112 816 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 50m
SYMBOL polcap 2144 976 R0
WINDOW 40 28 55 Left 2
WINDOW 3 35 34 Left 2
SYMATTR SpiceLine2 x2
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName C5
SYMBOL schottky 4096 1088 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL NMOS 2432 1008 M0
WINDOW 0 37 -15 Right 2
WINDOW 3 41 103 Right 2
SYMATTR InstName Q2
SYMATTR Value FDS6680A
SYMBOL PMOS 2432 800 R180
WINDOW 0 29 92 Right 2
WINDOW 3 33 -15 Right 2
SYMATTR InstName Q3
SYMATTR Value FDC638P
SYMBOL ind 2384 848 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 50µ
SYMBOL res 2272 816 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 50m
SYMBOL schottky 2256 1104 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL cap 2720 880 R0
WINDOW 0 33 16 Left 2
SYMATTR InstName C6
SYMATTR Value 1000p
SYMBOL VOLTAGE 2272 656 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL PMOS 3920 816 M180
WINDOW 0 56 92 Left 2
WINDOW 3 60 56 Left 2
SYMATTR InstName Q4
SYMATTR Value FDC638P
SYMBOL PowerProducts\\LTC1142HV-ADJ 3216 960 R0
SYMATTR InstName U1
SYMBOL RES 3616 1104 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 1K
SYMBOL cap 3728 1104 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 3300p
SYMBOL res 2528 1200 R0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL res 2528 1072 R0
SYMATTR InstName R6
SYMATTR Value 2K
SYMBOL res 3840 1200 R0
SYMATTR InstName R7
SYMATTR Value 1K
SYMBOL res 3840 1072 R0
SYMATTR InstName R8
SYMATTR Value 2K
SYMBOL polcap 4208 976 R0
WINDOW 40 28 68 Left 2
WINDOW 3 36 38 Left 2
SYMATTR SpiceLine2 x2
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName C8
SYMBOL res 4336 960 R0
SYMATTR InstName Rload2
SYMATTR Value 10
SYMBOL res 2016 960 R0
SYMATTR InstName Rload1
SYMATTR Value 10
TEXT 3992 1264 Left 2 !.tran 1.5m startup