Version 4 SHEET 1 2872 1908 WIRE 1744 1040 1360 1040 WIRE 2160 1040 1744 1040 WIRE 1360 1056 1360 1040 WIRE 1744 1056 1744 1040 WIRE 2160 1104 2160 1040 WIRE 2160 1104 1984 1104 WIRE 1504 1120 1472 1120 WIRE 2160 1136 2160 1104 WIRE 1360 1152 1360 1136 WIRE 2112 1216 1984 1216 WIRE 1424 1248 1408 1248 WIRE 1504 1248 1488 1248 WIRE 2032 1328 1984 1328 WIRE 2160 1328 2160 1232 WIRE 2160 1328 2032 1328 WIRE 2256 1328 2160 1328 WIRE 2416 1328 2336 1328 WIRE 2480 1328 2416 1328 WIRE 2576 1328 2480 1328 WIRE 2032 1344 2032 1328 WIRE 2480 1344 2480 1328 WIRE 2576 1344 2576 1328 WIRE 1504 1376 1488 1376 WIRE 2032 1440 2032 1408 WIRE 2032 1440 1984 1440 WIRE 2480 1440 2480 1408 WIRE 2576 1440 2576 1424 WIRE 2032 1456 2032 1440 WIRE 1328 1504 1312 1504 WIRE 1408 1504 1392 1504 WIRE 1504 1504 1488 1504 WIRE 2032 1552 2032 1520 WIRE 2032 1552 1984 1552 WIRE 2160 1552 2160 1328 WIRE 2304 1552 2160 1552 WIRE 2160 1584 2160 1552 WIRE 2304 1600 2304 1552 WIRE 1504 1632 1488 1632 WIRE 2032 1632 2032 1616 WIRE 2112 1664 1984 1664 WIRE 2160 1696 2160 1680 WIRE 2304 1696 2304 1664 WIRE 1504 1760 1488 1760 WIRE 2416 1776 2416 1328 WIRE 2416 1776 1984 1776 WIRE 1664 1840 1664 1824 WIRE 1824 1840 1824 1824 FLAG 1664 1840 0 FLAG 1824 1840 0 FLAG 2160 1696 0 FLAG 2304 1696 0 FLAG 2480 1440 0 FLAG 1488 1632 0 FLAG 1312 1504 0 FLAG 1408 1248 0 FLAG 1360 1152 0 FLAG 2032 1632 0 FLAG 2576 1440 0 FLAG 2576 1328 OUT FLAG 1360 1040 IN FLAG 1488 1760 0 SYMBOL NMOS 2112 1136 R0 SYMATTR InstName Q1 SYMATTR Value Si4410DY SYMBOL nmos 2112 1584 R0 SYMATTR InstName Q2 SYMATTR Value Si4410DY SYMBOL schottky 2016 1520 M180 WINDOW 0 24 72 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5818 SYMBOL ind 2240 1344 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 6µ SYMBOL schottky 2288 1664 M180 WINDOW 0 24 72 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value 1N5818 SYMBOL polcap 2464 1344 R0 SYMATTR InstName C1 SYMATTR Value 500µ SYMATTR SpiceLine Rser=.05 SYMBOL RES 1504 1488 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 10K SYMBOL cap 1392 1488 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 2200p SYMBOL cap 1488 1232 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .01µ SYMBOL VOLTAGE 1360 1040 R0 SYMATTR InstName V1 SYMATTR Value 6 SYMBOL cap 2016 1344 R0 SYMATTR InstName C4 SYMATTR Value .22µ SYMBOL polcap 2016 1552 R0 SYMATTR InstName C5 SYMATTR Value 4.7µ SYMBOL res 2560 1328 R0 SYMATTR InstName Rload SYMATTR Value 2 SYMBOL LTC1625 1744 1440 R0 SYMATTR InstName U1 TEXT 2440 1520 Left 2 !.tran 8m startup