Version 4 SHEET 1 2984 1720 WIRE 2000 1200 1808 1200 WIRE 2384 1200 2000 1200 WIRE 1808 1216 1808 1200 WIRE 2384 1216 2384 1200 WIRE 1808 1312 1808 1296 WIRE 2384 1312 2384 1296 WIRE 2448 1312 2384 1312 WIRE 2560 1312 2512 1312 WIRE 2656 1312 2560 1312 WIRE 2752 1312 2656 1312 WIRE 2560 1328 2560 1312 WIRE 2656 1328 2656 1312 WIRE 2752 1328 2752 1312 WIRE 2000 1344 2000 1200 WIRE 2336 1392 2144 1392 WIRE 1856 1424 1776 1424 WIRE 2560 1424 2560 1408 WIRE 2560 1424 2464 1424 WIRE 2656 1424 2656 1392 WIRE 2752 1424 2752 1408 WIRE 1776 1440 1776 1424 WIRE 2560 1440 2560 1424 WIRE 2384 1456 2384 1408 WIRE 2384 1456 2144 1456 WIRE 2208 1472 2176 1472 WIRE 2288 1472 2208 1472 WIRE 2384 1472 2384 1456 WIRE 2288 1488 2288 1472 WIRE 2176 1520 2176 1472 WIRE 2176 1520 2144 1520 WIRE 2208 1520 2208 1472 WIRE 2560 1536 2560 1520 WIRE 1776 1552 1776 1520 WIRE 1856 1552 1776 1552 WIRE 2384 1568 2384 1552 WIRE 1776 1584 1776 1552 WIRE 2176 1584 2144 1584 WIRE 2288 1584 2288 1568 WIRE 1776 1664 1776 1648 WIRE 2176 1664 2176 1584 WIRE 2208 1664 2208 1584 WIRE 2208 1664 2176 1664 WIRE 2288 1664 2288 1648 WIRE 2288 1664 2208 1664 WIRE 2464 1664 2464 1424 WIRE 2464 1664 2288 1664 WIRE 2000 1680 2000 1632 FLAG 2384 1568 0 FLAG 2000 1680 0 FLAG 1808 1312 0 FLAG 2656 1424 0 FLAG 2560 1536 0 FLAG 1776 1664 0 FLAG 2752 1424 0 FLAG 2752 1312 OUT FLAG 1808 1200 IN SYMBOL POWERPRODUCTS\\LT1246 2000 1488 R0 SYMATTR InstName U1 SYMBOL NMOS 2336 1312 R0 WINDOW 0 -8 16 Right 2 WINDOW 3 36 108 Right 2 SYMATTR InstName Q1 SYMATTR Value Si4410DY SYMBOL RES 2368 1456 R0 SYMATTR InstName R1 SYMATTR Value .1 SYMBOL res 1760 1424 R0 SYMATTR InstName R2 SYMATTR Value 6.2K SYMBOL cap 1760 1648 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C1 SYMATTR Value 500p SYMBOL cap 2192 1520 R0 SYMATTR InstName C2 SYMATTR Value 50p SYMBOL ind 2368 1200 R0 SYMATTR InstName L1 SYMATTR Value 10µ SYMBOL VOLTAGE 1808 1200 R0 SYMATTR InstName V1 SYMATTR Value 17 SYMBOL schottky 2448 1296 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value MBRS340 SYMBOL polcap 2640 1328 R0 SYMATTR SpiceLine Rser=25m SYMATTR InstName C3 SYMATTR Value 300µ SYMBOL res 2544 1312 R0 SYMATTR InstName R3 SYMATTR Value 90K SYMBOL res 2544 1424 R0 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL cap 2272 1584 R0 SYMATTR InstName C4 SYMATTR Value 500p SYMBOL res 2272 1472 R0 SYMATTR InstName R5 SYMATTR Value 100K SYMBOL res 2736 1312 R0 SYMATTR InstName Rload SYMATTR Value 10 TEXT 2520 1600 Left 2 !.tran 2m startup