Version 4 SHEET 1 2652 1736 WIRE 1536 1280 1440 1280 WIRE 1712 1280 1536 1280 WIRE 1440 1296 1440 1280 WIRE 1712 1296 1712 1280 WIRE 1536 1360 1536 1280 WIRE 1552 1360 1536 1360 WIRE 1904 1360 1872 1360 WIRE 2016 1360 1984 1360 WIRE 1440 1392 1440 1376 WIRE 1536 1472 1536 1360 WIRE 1552 1472 1536 1472 WIRE 1904 1472 1872 1472 WIRE 2016 1472 2016 1360 WIRE 2016 1472 1984 1472 WIRE 2112 1472 2016 1472 WIRE 2192 1472 2112 1472 WIRE 2272 1472 2192 1472 WIRE 2016 1488 2016 1472 WIRE 2112 1488 2112 1472 WIRE 2192 1488 2192 1472 WIRE 2272 1488 2272 1472 WIRE 1552 1584 1536 1584 WIRE 2016 1584 2016 1568 WIRE 2016 1584 1872 1584 WIRE 2112 1584 2112 1552 WIRE 2112 1584 2016 1584 WIRE 2192 1584 2192 1552 WIRE 2272 1584 2272 1568 WIRE 2016 1600 2016 1584 WIRE 1648 1680 1648 1664 WIRE 1776 1680 1776 1664 WIRE 2016 1696 2016 1680 FLAG 1776 1680 0 FLAG 1648 1680 0 FLAG 1440 1392 0 FLAG 1536 1584 0 FLAG 2272 1584 0 FLAG 2016 1696 0 FLAG 2192 1584 0 FLAG 1440 1280 IN FLAG 2272 1472 OUT SYMBOL ind 1888 1488 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 220n SYMBOL RES 2000 1472 R0 SYMATTR InstName R1 SYMATTR Value 260K SYMBOL VOLTAGE 1440 1280 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 4.5 SYMBOL res 2000 1584 R0 SYMATTR InstName R2 SYMATTR Value 100K SYMBOL cap 2176 1488 R0 SYMATTR InstName C1 SYMATTR Value 22µ SYMBOL res 2000 1344 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 500K SYMBOL cap 2096 1488 R0 SYMATTR InstName C3 SYMATTR Value 2.2p SYMBOL res 2256 1472 R0 SYMATTR InstName Rload SYMATTR Value 0.6 SYMBOL LTC3308A 1712 1472 R0 SYMATTR InstName U1 TEXT 2152 1696 Left 2 !.tran 1.5m startup