Version 4
SHEET 1 3064 1952
WIRE 1520 608 1472 608
WIRE 1632 608 1520 608
WIRE 1808 608 1632 608
WIRE 2240 608 1808 608
WIRE 2336 608 2240 608
WIRE 2416 608 2336 608
WIRE 2112 624 1968 624
WIRE 2416 624 2416 608
WIRE 1520 640 1520 608
WIRE 1632 640 1632 608
WIRE 2112 640 2112 624
WIRE 1808 720 1808 608
WIRE 1968 720 1968 624
WIRE 2416 720 2416 704
WIRE 2112 736 2112 720
WIRE 1632 784 1632 720
WIRE 1696 784 1632 784
WIRE 2128 800 2080 800
WIRE 2240 800 2240 608
WIRE 2240 800 2208 800
WIRE 2336 800 2336 608
WIRE 1520 848 1520 720
WIRE 1696 848 1520 848
WIRE 2288 880 2080 880
WIRE 1696 912 1664 912
WIRE 2144 960 2080 960
WIRE 2336 960 2336 896
WIRE 2336 960 2224 960
WIRE 2384 960 2336 960
WIRE 2512 960 2464 960
WIRE 2560 960 2512 960
WIRE 2704 960 2560 960
WIRE 1664 976 1664 912
WIRE 1696 976 1664 976
WIRE 2560 976 2560 960
WIRE 2704 976 2704 960
WIRE 1664 1040 1664 976
WIRE 1664 1040 1648 1040
WIRE 1696 1040 1664 1040
WIRE 2288 1040 2080 1040
WIRE 2336 1072 2336 1056
WIRE 2560 1072 2560 1040
WIRE 2704 1072 2704 1056
WIRE 1664 1104 1664 1040
WIRE 1696 1104 1664 1104
WIRE 2096 1120 2080 1120
WIRE 1664 1168 1664 1104
WIRE 1696 1168 1664 1168
WIRE 2416 1200 2080 1200
WIRE 2512 1200 2512 960
WIRE 2512 1200 2416 1200
WIRE 2416 1216 2416 1200
WIRE 1472 1232 1472 608
WIRE 1696 1232 1472 1232
WIRE 2128 1280 2080 1280
WIRE 2176 1280 2128 1280
WIRE 2288 1280 2256 1280
WIRE 1600 1296 1584 1296
WIRE 1696 1296 1664 1296
WIRE 2416 1296 2416 1280
WIRE 2128 1312 2128 1280
WIRE 2288 1312 2288 1280
WIRE 1808 1376 1808 1360
WIRE 1968 1376 1968 1360
WIRE 2128 1392 2128 1376
WIRE 2288 1392 2288 1376
FLAG 2560 1072 0
FLAG 2704 1072 0
FLAG 2704 960 OUT
FLAG 2336 1072 0
FLAG 2288 1392 0
FLAG 2128 1392 0
FLAG 1584 1296 0
FLAG 1808 1376 0
FLAG 1968 1376 0
FLAG 2416 720 0
FLAG 1648 1040 0
FLAG 2112 736 0
FLAG 2416 1296 0
SYMBOL ind 2368 976 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1.3µ
SYMBOL VOLTAGE 2416 608 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL NMOS 2288 960 R0
WINDOW 123 60 87 Left 2
WINDOW 3 59 65 Left 2
SYMATTR Value2 m=2
SYMATTR Value Si4410DY
SYMATTR InstName Q1
SYMBOL cap 2112 1312 R0
SYMATTR InstName C1
SYMATTR Value 150p
SYMBOL cap 2272 1312 R0
SYMATTR InstName C2
SYMATTR Value 4700p
SYMBOL res 2160 1296 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 15K
SYMBOL res 2224 784 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1.2K
SYMBOL NMOS 2288 800 R0
WINDOW 123 60 73 Left 2
WINDOW 0 59 9 Left 2
WINDOW 3 53 46 Left 2
SYMATTR Value2 m=2
SYMATTR InstName Q2
SYMATTR Value Si4410DY
SYMBOL res 2240 944 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 20
SYMBOL polcap 2544 976 R0
WINDOW 123 25 62 Left 2
WINDOW 3 38 35 Left 2
SYMATTR Value2 x5
SYMATTR Value 2700µ
SYMATTR SpiceLine Rser=.05
SYMATTR InstName C3
SYMBOL cap 1664 1280 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .02µ
SYMBOL res 1616 624 R0
SYMATTR InstName R4
SYMATTR Value 5.6K
SYMBOL res 1504 624 R0
SYMATTR InstName R5
SYMATTR Value 5.6K
SYMBOL VOLTAGE 2112 624 R0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL cap 2400 1216 R0
SYMATTR InstName C9
SYMATTR Value .1µ
SYMBOL PowerProducts\\LTC1753 1888 1040 R0
SYMATTR InstName U1
SYMBOL res 2688 960 R0
SYMATTR InstName Rload
SYMATTR Value 1
TEXT 2544 1256 Left 2 !.tran 3.5m startup