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 2128 656 1968 656 WIRE 2528 656 2528 640 WIRE 2128 672 2128 656 WIRE 1600 688 1600 640 WIRE 2320 688 2320 640 WIRE 1808 720 1808 640 WIRE 1968 720 1968 656 WIRE 1504 752 1504 640 WIRE 2528 752 2528 736 WIRE 2128 768 2128 752 WIRE 1600 784 1600 768 WIRE 1696 784 1600 784 WIRE 1408 800 1408 640 WIRE 2320 800 2320 768 WIRE 2320 800 2080 800 WIRE 2432 800 2432 640 WIRE 1504 848 1504 832 WIRE 1696 848 1504 848 WIRE 2384 880 2080 880 WIRE 1408 912 1408 880 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 2768 960 2672 960 WIRE 1696 976 1664 976 WIRE 2768 976 2768 960 WIRE 2672 992 2672 960 WIRE 1664 1040 1664 976 WIRE 1696 1040 1664 1040 WIRE 2384 1040 2080 1040 WIRE 2672 1072 2672 1056 WIRE 2768 1072 2768 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 2208 1200 2080 1200 WIRE 2256 1200 2208 1200 WIRE 2352 1200 2336 1200 WIRE 2208 1216 2208 1200 WIRE 2352 1216 2352 1200 WIRE 2464 1216 2464 1200 WIRE 1664 1232 1664 1168 WIRE 1696 1232 1664 1232 WIRE 2128 1280 2080 1280 WIRE 1360 1296 1360 640 WIRE 1696 1296 1360 1296 WIRE 2128 1296 2128 1280 WIRE 2208 1296 2208 1280 WIRE 2352 1296 2352 1280 WIRE 1808 1392 1808 1360 WIRE 1968 1392 1968 1360 WIRE 2128 1392 2128 1360 FLAG 2672 1072 0 FLAG 2768 1072 0 FLAG 2768 960 OUT FLAG 2432 1088 0 FLAG 2352 1296 0 FLAG 2208 1296 0 FLAG 2128 1392 0 FLAG 1808 1392 0 FLAG 1968 1392 0 FLAG 2528 752 0 FLAG 1632 1104 0 FLAG 2128 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 2192 1216 R0 SYMATTR InstName C1 SYMATTR Value 150p SYMBOL cap 2336 1216 R0 SYMATTR InstName C2 SYMATTR Value .01µ SYMBOL res 2352 1184 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 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 992 R0 WINDOW 123 25 58 Left 2 WINDOW 3 38 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 736 R0 SYMATTR InstName R5 SYMATTR Value 5.6K SYMBOL res 1392 784 R0 SYMATTR InstName R6 SYMATTR Value 5.6K SYMBOL VOLTAGE 2128 656 R0 SYMATTR InstName V2 SYMATTR Value 12 SYMBOL cap 2448 1136 R0 SYMATTR InstName C9 SYMATTR Value .1µ SYMBOL PowerProducts\\LTC1553L 1888 1040 R0 SYMATTR InstName U1 SYMBOL res 2752 960 R0 SYMATTR InstName Rload SYMATTR Value .2 TEXT 2512 1264 Left 2 !.tran 2m startup