Version 4
SHEET 1 3240 1368
WIRE 2016 656 1616 656
WIRE 2272 656 2016 656
WIRE 2432 656 2272 656
WIRE 1616 672 1616 656
WIRE 2272 672 2272 656
WIRE 2016 688 2016 656
WIRE 2432 752 2432 656
WIRE 1616 768 1616 752
WIRE 1808 768 1696 768
WIRE 2272 768 2272 736
WIRE 2272 768 2224 768
WIRE 2384 768 2272 768
WIRE 1696 848 1696 832
WIRE 1808 848 1696 848
WIRE 2272 848 2272 832
WIRE 2272 848 2224 848
WIRE 1696 864 1696 848
WIRE 2432 880 2432 848
WIRE 2480 880 2432 880
WIRE 2592 880 2560 880
WIRE 2624 880 2592 880
WIRE 2736 880 2704 880
WIRE 1808 928 1792 928
WIRE 2272 928 2224 928
WIRE 2592 928 2592 880
WIRE 2592 928 2272 928
WIRE 1696 944 1696 928
WIRE 1632 1008 1616 1008
WIRE 1712 1008 1696 1008
WIRE 1808 1008 1792 1008
WIRE 2272 1008 2272 992
WIRE 2272 1008 2224 1008
WIRE 2736 1008 2736 880
WIRE 2736 1008 2272 1008
WIRE 2848 1008 2736 1008
WIRE 2944 1008 2848 1008
WIRE 2736 1024 2736 1008
WIRE 2848 1024 2848 1008
WIRE 2944 1024 2944 1008
WIRE 2432 1072 2432 880
WIRE 2560 1072 2432 1072
WIRE 1680 1088 1616 1088
WIRE 1808 1088 1744 1088
WIRE 2272 1088 2272 1008
WIRE 2272 1088 2224 1088
WIRE 2432 1088 2432 1072
WIRE 2560 1104 2560 1072
WIRE 2736 1120 2736 1104
WIRE 2736 1120 2688 1120
WIRE 2848 1120 2848 1088
WIRE 2944 1120 2944 1104
WIRE 2736 1136 2736 1120
WIRE 1808 1168 1760 1168
WIRE 2384 1168 2224 1168
WIRE 2432 1200 2432 1184
WIRE 2560 1200 2560 1168
WIRE 2736 1232 2736 1216
WIRE 1888 1264 1888 1248
WIRE 2144 1264 2144 1248
WIRE 1760 1296 1760 1168
WIRE 2688 1296 2688 1120
WIRE 2688 1296 1760 1296
FLAG 1616 768 0
FLAG 2432 1200 0
FLAG 2144 1264 0
FLAG 1888 1264 0
FLAG 1616 1088 0
FLAG 1616 1008 0
FLAG 1696 944 0
FLAG 2560 1200 0
FLAG 2848 1120 0
FLAG 2944 1120 0
FLAG 2944 1008 OUT
FLAG 2736 1232 0
FLAG 1616 656 IN
SYMBOL VOLTAGE 1616 656 R0
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL NMOS 2384 1088 R0
WINDOW 0 54 13 Left 2
WINDOW 3 60 101 Left 2
SYMATTR InstName Q1
SYMATTR Value FDS5690
SYMBOL PMOS 2384 848 M180
WINDOW 0 56 72 Left 2
WINDOW 3 60 38 Left 2
SYMATTR InstName Q2
SYMATTR Value IRF7343P
SYMBOL cap 1744 1072 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 470p
SYMBOL cap 1696 992 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 3300p
SYMBOL RES 1808 992 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL polcap 1680 864 R0
WINDOW 3 26 62 Left 2
SYMATTR Value 3.3µ
SYMATTR InstName C3
SYMBOL cap 1680 768 R0
WINDOW 0 32 19 Left 2
SYMATTR InstName C4
SYMATTR Value .15µ
SYMBOL diode 2256 736 M180
WINDOW 0 38 58 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL ind 2464 896 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 33µ
SYMBOL res 2608 896 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 50m
SYMBOL cap 2256 928 R0
WINDOW 0 34 22 Left 2
WINDOW 3 29 57 Left 2
SYMATTR InstName C5
SYMATTR Value 1000p
SYMBOL cap 2256 768 R0
WINDOW 0 33 20 Left 2
SYMATTR InstName C6
SYMATTR Value .1µ
SYMBOL schottky 2544 1168 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value MBRS360
SYMBOL polcap 2832 1024 R0
SYMATTR InstName C7
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=.01
SYMBOL POWERPRODUCTS\\LTC1159 2016 928 R0
SYMATTR InstName U1
SYMBOL res 2720 1008 R0
SYMATTR InstName R3
SYMATTR Value 164K
SYMBOL res 2720 1120 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL res 2928 1008 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 2208 1320 Left 2 !.tran 42m startup