Version 4
SHEET 1 3212 1368
WIRE 1920 688 1616 688
WIRE 1984 688 1920 688
WIRE 2112 688 2048 688
WIRE 2272 688 2112 688
WIRE 2480 688 2272 688
WIRE 2640 688 2480 688
WIRE 2640 704 2640 688
WIRE 1616 736 1616 688
WIRE 2272 736 2272 688
WIRE 1920 784 1920 688
WIRE 2112 784 2112 688
WIRE 2480 784 2480 688
WIRE 2432 800 2400 800
WIRE 2640 800 2640 784
WIRE 1616 848 1616 800
WIRE 1808 848 1616 848
WIRE 2272 848 2272 800
WIRE 2272 848 2224 848
WIRE 2400 848 2400 800
WIRE 2400 848 2272 848
WIRE 1616 864 1616 848
WIRE 2272 864 2272 848
WIRE 1728 928 1712 928
WIRE 1808 928 1792 928
WIRE 2272 928 2224 928
WIRE 2480 928 2480 880
WIRE 2512 928 2480 928
WIRE 2608 928 2592 928
WIRE 2640 928 2608 928
WIRE 2752 928 2720 928
WIRE 2800 928 2752 928
WIRE 1616 944 1616 928
WIRE 2800 944 2800 928
WIRE 1808 1008 1776 1008
WIRE 2272 1008 2224 1008
WIRE 2608 1008 2608 928
WIRE 2608 1008 2272 1008
WIRE 2800 1040 2800 1024
WIRE 1632 1088 1616 1088
WIRE 1712 1088 1696 1088
WIRE 1808 1088 1792 1088
WIRE 2272 1088 2272 1072
WIRE 2272 1088 2224 1088
WIRE 2752 1088 2752 928
WIRE 2752 1088 2272 1088
WIRE 2480 1104 2480 928
WIRE 2544 1104 2480 1104
WIRE 2752 1104 2752 1088
WIRE 2480 1120 2480 1104
WIRE 2544 1136 2544 1104
WIRE 1712 1168 1696 1168
WIRE 1808 1168 1776 1168
WIRE 2400 1168 2224 1168
WIRE 2752 1184 2752 1168
WIRE 2400 1200 2400 1168
WIRE 2432 1200 2400 1200
WIRE 2480 1232 2480 1216
WIRE 2544 1232 2544 1200
WIRE 1888 1248 1888 1232
WIRE 2016 1248 2016 1232
WIRE 2144 1248 2144 1232
FLAG 2640 800 0
FLAG 2480 1232 0
FLAG 2144 1248 0
FLAG 2016 1248 0
FLAG 1888 1248 0
FLAG 1712 928 0
FLAG 1616 1088 0
FLAG 1616 944 0
FLAG 2544 1232 0
FLAG 2752 1184 0
FLAG 2800 1040 0
FLAG 2800 928 OUT
FLAG 1696 1168 0
FLAG 2640 688 IN
SYMBOL VOLTAGE 2640 688 R0
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL NMOS 2432 1120 R0
WINDOW 0 28 -8 Right 2
WINDOW 3 22 100 Right 2
SYMATTR InstName Q1
SYMATTR Value FDS5690
SYMBOL PMOS 2432 880 M180
WINDOW 0 56 72 Left 2
WINDOW 3 56 20 Left 2
SYMATTR InstName Q2
SYMATTR Value IRF7343P
SYMBOL cap 1792 912 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 470p
SYMBOL cap 1696 1072 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 3300p
SYMBOL polcap 1600 864 R0
WINDOW 3 24 58 Left 2
SYMATTR Value 3.3µ
SYMATTR InstName C3
SYMBOL cap 1600 736 R0
SYMATTR InstName C4
SYMATTR Value .068µ
SYMBOL diode 1984 704 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 2256 800 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL ind 2496 944 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 62µ
SYMBOL cap 2256 1008 R0
WINDOW 0 33 17 Left 2
WINDOW 3 27 55 Left 2
SYMATTR InstName C5
SYMATTR Value 1000p
SYMBOL cap 2256 864 R0
WINDOW 0 29 10 Left 2
WINDOW 3 30 53 Left 2
SYMATTR InstName C6
SYMATTR Value .047µ
SYMBOL schottky 2528 1200 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value MBRS360
SYMBOL polcap 2736 1104 R0
SYMATTR InstName C7
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=.01
SYMBOL RES 1808 1072 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL res 2624 944 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 50m
SYMBOL PowerProducts\\LTC1149-5 2016 1008 R0
SYMATTR InstName U1
SYMBOL cap 1776 1152 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 100p
SYMBOL res 2784 928 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 2408 1288 Left 2 !.tran 9m startup