Version 4
SHEET 1 3048 1496
WIRE 1408 640 1360 640
WIRE 1504 640 1408 640
WIRE 1600 640 1504 640
WIRE 1808 640 1600 640
WIRE 2320 640 1808 640
WIRE 2432 640 2320 640
WIRE 2528 640 2432 640
WIRE 2144 656 1968 656
WIRE 2528 656 2528 640
WIRE 2144 672 2144 656
WIRE 1600 688 1600 640
WIRE 2320 688 2320 640
WIRE 1808 720 1808 640
WIRE 1968 720 1968 656
WIRE 1504 736 1504 640
WIRE 2528 752 2528 736
WIRE 2144 768 2144 752
WIRE 1600 784 1600 768
WIRE 1696 784 1600 784
WIRE 2320 800 2320 768
WIRE 2320 800 2080 800
WIRE 2432 800 2432 640
WIRE 1408 816 1408 640
WIRE 1504 848 1504 816
WIRE 1696 848 1504 848
WIRE 2384 880 2080 880
WIRE 1408 912 1408 896
WIRE 1696 912 1408 912
WIRE 2128 960 2080 960
WIRE 2432 960 2432 896
WIRE 2432 960 2208 960
WIRE 2496 960 2432 960
WIRE 2624 960 2576 960
WIRE 2672 960 2624 960
WIRE 2784 960 2672 960
WIRE 1696 976 1664 976
WIRE 2672 976 2672 960
WIRE 2784 976 2784 960
WIRE 1664 1040 1664 976
WIRE 1696 1040 1664 1040
WIRE 2384 1040 2080 1040
WIRE 2672 1072 2672 1040
WIRE 2784 1072 2784 1056
WIRE 2432 1088 2432 1056
WIRE 1664 1104 1664 1040
WIRE 1664 1104 1632 1104
WIRE 1696 1104 1664 1104
WIRE 2464 1120 2080 1120
WIRE 2624 1120 2624 960
WIRE 2624 1120 2464 1120
WIRE 2464 1136 2464 1120
WIRE 1664 1168 1664 1104
WIRE 1696 1168 1664 1168
WIRE 2192 1200 2080 1200
WIRE 2240 1200 2192 1200
WIRE 2336 1200 2320 1200
WIRE 2464 1216 2464 1200
WIRE 1664 1232 1664 1168
WIRE 1696 1232 1664 1232
WIRE 2192 1232 2192 1200
WIRE 2336 1232 2336 1200
WIRE 2128 1280 2080 1280
WIRE 1360 1296 1360 640
WIRE 1696 1296 1360 1296
WIRE 2128 1296 2128 1280
WIRE 2192 1312 2192 1296
WIRE 2336 1312 2336 1296
WIRE 1808 1392 1808 1360
WIRE 1968 1392 1968 1360
WIRE 2128 1392 2128 1360
FLAG 2672 1072 0
FLAG 2784 1072 0
FLAG 2784 960 OUT
FLAG 2432 1088 0
FLAG 2336 1312 0
FLAG 2192 1312 0
FLAG 2128 1392 0
FLAG 1808 1392 0
FLAG 1968 1392 0
FLAG 2528 752 0
FLAG 1632 1104 0
FLAG 2144 768 0
FLAG 2464 1216 0
FLAG 2528 640 IN
SYMBOL ind 2480 976 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 2µ
SYMBOL VOLTAGE 2528 640 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL NMOS 2384 960 R0
WINDOW 123 60 108 Left 2
SYMATTR Value2 m=2
SYMATTR InstName Q1
SYMATTR Value Si4410DY
SYMBOL cap 2176 1232 R0
SYMATTR InstName C1
SYMATTR Value 150p
SYMBOL cap 2320 1232 R0
SYMATTR InstName C2
SYMATTR Value .01µ
SYMBOL res 2224 1216 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 8.2K
SYMBOL res 2304 672 R0
SYMATTR InstName R2
SYMATTR Value 2.7K
SYMBOL NMOS 2384 800 R0
WINDOW 0 56 12 Left 2
WINDOW 3 56 48 Left 2
WINDOW 123 56 84 Left 2
SYMATTR InstName Q2
SYMATTR Value Si4410DY
SYMATTR Value2 m=2
SYMBOL res 2224 944 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 20
SYMBOL polcap 2656 976 R0
WINDOW 123 24 60 Left 2
WINDOW 3 33 34 Left 2
SYMATTR Value2 x7
SYMATTR Value 330µ
SYMATTR SpiceLine Rser=.1
SYMATTR InstName C3
SYMBOL cap 2112 1296 R0
SYMATTR InstName C4
SYMATTR Value .01µ
SYMBOL res 1584 672 R0
SYMATTR InstName R4
SYMATTR Value 5.6K
SYMBOL res 1488 720 R0
SYMATTR InstName R5
SYMATTR Value 5.6K
SYMBOL res 1392 800 R0
SYMATTR InstName R6
SYMATTR Value 5.6K
SYMBOL VOLTAGE 2144 656 R0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL cap 2448 1136 R0
SYMATTR InstName C9
SYMATTR Value .1µ
SYMBOL PowerProducts\\LTC1553 1888 1040 R0
SYMATTR InstName U1
SYMBOL res 2768 960 R0
SYMATTR InstName Rload
SYMATTR Value .1
TEXT 2496 1272 Left 2 !.tran 2.5m startup