Version 4
SHEET 1 4392 1716
WIRE 2496 464 2384 464
WIRE 3216 464 2496 464
WIRE 3872 464 3216 464
WIRE 2384 480 2384 464
WIRE 4112 480 3376 480
WIRE 2736 496 2656 496
WIRE 2896 496 2736 496
WIRE 3536 496 2896 496
WIRE 3648 496 3536 496
WIRE 3760 496 3648 496
WIRE 2656 512 2656 496
WIRE 3760 512 3760 496
WIRE 2736 544 2736 496
WIRE 3648 544 3648 496
WIRE 2896 560 2896 496
WIRE 3056 560 3056 528
WIRE 3216 560 3216 464
WIRE 3376 560 3376 480
WIRE 3536 560 3536 496
WIRE 2384 576 2384 560
WIRE 2656 592 2656 576
WIRE 3760 592 3760 576
WIRE 2736 640 2736 608
WIRE 2816 640 2736 640
WIRE 3648 640 3648 608
WIRE 3648 640 3616 640
WIRE 2496 704 2496 464
WIRE 3872 704 3872 464
WIRE 2736 720 2544 720
WIRE 2816 720 2736 720
WIRE 3648 720 3616 720
WIRE 3824 720 3648 720
WIRE 2736 800 2736 784
WIRE 2816 800 2736 800
WIRE 3648 800 3648 784
WIRE 3648 800 3616 800
WIRE 2240 832 2224 832
WIRE 2336 832 2320 832
WIRE 2368 832 2336 832
WIRE 2496 832 2496 800
WIRE 2496 832 2448 832
WIRE 3872 832 3872 800
WIRE 3904 832 3872 832
WIRE 4000 832 3984 832
WIRE 4016 832 4000 832
WIRE 4112 832 4112 480
WIRE 4112 832 4096 832
WIRE 2336 880 2336 832
WIRE 2736 880 2336 880
WIRE 2816 880 2736 880
WIRE 3648 880 3616 880
WIRE 4000 880 4000 832
WIRE 4000 880 3648 880
WIRE 2224 960 2224 832
WIRE 2224 960 2080 960
WIRE 2640 960 2224 960
WIRE 2736 960 2736 944
WIRE 2736 960 2640 960
WIRE 2816 960 2736 960
WIRE 3648 960 3648 944
WIRE 3648 960 3616 960
WIRE 4112 960 4112 832
WIRE 4112 960 3648 960
WIRE 4240 960 4112 960
WIRE 2080 976 2080 960
WIRE 2224 976 2224 960
WIRE 4112 976 4112 960
WIRE 4240 976 4240 960
WIRE 2496 1024 2496 832
WIRE 2496 1024 2384 1024
WIRE 3872 1024 3872 832
WIRE 4016 1024 3872 1024
WIRE 2496 1040 2496 1024
WIRE 2816 1040 2784 1040
WIRE 3648 1040 3616 1040
WIRE 3872 1040 3872 1024
WIRE 2384 1056 2384 1024
WIRE 4016 1056 4016 1024
WIRE 2080 1072 2080 1056
WIRE 2224 1072 2224 1040
WIRE 4112 1072 4112 1040
WIRE 4240 1072 4240 1056
WIRE 2816 1120 2544 1120
WIRE 3824 1120 3616 1120
WIRE 4016 1136 4016 1120
WIRE 2384 1152 2384 1120
WIRE 2496 1152 2496 1136
WIRE 3872 1152 3872 1136
WIRE 2640 1200 2640 960
WIRE 2816 1200 2736 1200
WIRE 3696 1200 3616 1200
WIRE 2736 1216 2736 1200
WIRE 3696 1216 3696 1200
WIRE 2960 1296 2960 1280
WIRE 3088 1296 3088 1280
WIRE 3216 1296 3216 1280
WIRE 3344 1296 3344 1280
WIRE 3472 1296 3472 1280
WIRE 2736 1312 2736 1296
WIRE 3696 1312 3696 1296
WIRE 2960 1376 2960 1360
WIRE 3472 1376 3472 1360
WIRE 2736 1392 2736 1376
WIRE 3696 1392 3696 1376
WIRE 2640 1456 2640 1280
WIRE 2880 1456 2880 1280
WIRE 2880 1456 2640 1456
WIRE 2896 1456 2880 1456
WIRE 2992 1456 2976 1456
FLAG 3696 1392 0
FLAG 3344 1296 0
FLAG 3472 1376 0
FLAG 2960 1376 0
FLAG 3088 1296 0
FLAG 3216 1296 0
FLAG 2736 1392 0
FLAG 4112 1072 0
FLAG 3872 1152 0
FLAG 4016 1136 0
FLAG 2224 1072 0
FLAG 2496 1152 0
FLAG 2384 1152 0
FLAG 4240 1072 0
FLAG 2080 1072 0
FLAG 2384 576 0
FLAG 3760 592 0
FLAG 2656 592 0
FLAG 2992 1456 0
FLAG 2384 464 IN
FLAG 2080 960 OUT1
FLAG 4240 960 OUT2
SYMBOL RES 2720 1200 R0
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL cap 2720 1312 R0
SYMATTR InstName C1
SYMATTR Value 3300p
SYMBOL cap 3456 1296 R0
SYMATTR InstName C2
SYMATTR Value 270p
SYMBOL cap 2944 1296 R0
SYMATTR InstName C3
SYMATTR Value 270p
SYMBOL res 3680 1200 R0
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL cap 3680 1312 R0
SYMATTR InstName C4
SYMATTR Value 3300p
SYMBOL NMOS 3824 1040 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL ind 3888 848 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 38 5 56 VBottom 2
WINDOW 39 5 56 VBottom 2
WINDOW 40 5 56 VBottom 2
WINDOW 123 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 33µ
SYMBOL res 4000 816 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 50m
SYMBOL polcap 4096 976 R0
WINDOW 40 33 65 Left 2
WINDOW 3 34 36 Left 2
SYMATTR SpiceLine2 x2
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName C5
SYMBOL schottky 4000 1120 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL NMOS 2544 1040 M0
WINDOW 0 28 -9 Right 2
WINDOW 3 38 95 Right 2
SYMATTR InstName Q2
SYMATTR Value FDS6680A
SYMBOL PMOS 2544 800 R180
WINDOW 0 39 101 Right 2
WINDOW 3 34 -7 Right 2
SYMATTR InstName Q3
SYMATTR Value FDC638P
SYMBOL ind 2464 848 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 38 5 56 VBottom 2
WINDOW 39 5 56 VBottom 2
WINDOW 40 5 56 VBottom 2
WINDOW 123 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 20µ
SYMBOL res 2336 816 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 50m
SYMBOL polcap 2208 976 R0
WINDOW 40 32 59 Left 2
WINDOW 3 42 34 Left 2
SYMATTR SpiceLine2 x2
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName C6
SYMBOL schottky 2368 1120 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 32 19 Left 2
WINDOW 3 22 57 Left 2
SYMATTR InstName C7
SYMATTR Value 1000p
SYMBOL res 4224 960 R0
SYMATTR InstName Rload2
SYMATTR Value 5
SYMBOL res 2064 960 R0
SYMATTR InstName Rload1
SYMATTR Value 5
SYMBOL VOLTAGE 2384 464 R0
SYMATTR InstName V1
SYMATTR Value 25
SYMBOL PMOS 3824 800 M180
WINDOW 0 60 77 Left 2
WINDOW 3 57 39 Left 2
SYMATTR InstName Q4
SYMATTR Value FDC638P
SYMBOL cap 3632 720 R0
WINDOW 0 35 21 Left 2
WINDOW 3 29 54 Left 2
SYMATTR InstName C8
SYMATTR Value .1µ
SYMBOL cap 3632 544 R0
SYMATTR InstName C9
SYMATTR Value .15µ
SYMBOL polcap 3744 512 R0
SYMATTR InstName C10
SYMATTR Value 3.3µ
SYMBOL polcap 2640 512 R0
SYMATTR InstName C11
SYMATTR Value 3.3µ
SYMBOL cap 2720 720 R0
WINDOW 0 27 18 Left 2
WINDOW 3 26 57 Left 2
SYMATTR InstName C12
SYMATTR Value .1µ
SYMBOL cap 3632 880 R0
WINDOW 0 37 24 Left 2
WINDOW 3 27 56 Left 2
SYMATTR InstName C13
SYMATTR Value 1000p
SYMBOL cap 2720 544 R0
SYMATTR InstName C14
SYMATTR Value .15µ
SYMBOL res 2992 1440 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1K
SYMBOL res 2624 1296 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 3K
SYMBOL PowerProducts\\LTC1267-ADJ5 3216 880 R0
SYMATTR InstName U1
TEXT 3840 1408 Left 2 !.tran 1.5m