Version 4 SHEET 1 3032 1684 WIRE 1744 1088 1584 1088 WIRE 1920 1088 1744 1088 WIRE 2176 1088 1920 1088 WIRE 1584 1104 1584 1088 WIRE 2176 1104 2176 1088 WIRE 1920 1136 1920 1088 WIRE 1584 1200 1584 1184 WIRE 1744 1200 1744 1088 WIRE 1776 1200 1744 1200 WIRE 2176 1200 2176 1184 WIRE 2176 1200 2064 1200 WIRE 2176 1264 2176 1200 WIRE 1632 1280 1584 1280 WIRE 1776 1280 1712 1280 WIRE 2128 1280 2064 1280 WIRE 1584 1312 1584 1280 WIRE 1696 1360 1680 1360 WIRE 1776 1360 1760 1360 WIRE 2112 1360 2064 1360 WIRE 2176 1392 2176 1360 WIRE 2224 1392 2176 1392 WIRE 2336 1392 2304 1392 WIRE 2416 1392 2336 1392 WIRE 2560 1392 2416 1392 WIRE 2656 1392 2560 1392 WIRE 1584 1408 1584 1376 WIRE 2176 1408 2176 1392 WIRE 2336 1408 2336 1392 WIRE 2416 1408 2416 1392 WIRE 2560 1408 2560 1392 WIRE 2656 1408 2656 1392 WIRE 1920 1440 1920 1424 WIRE 2176 1488 2176 1472 WIRE 2560 1504 2560 1472 WIRE 2656 1504 2656 1488 WIRE 2112 1520 2112 1360 WIRE 2336 1520 2336 1472 WIRE 2336 1520 2112 1520 WIRE 2416 1520 2416 1488 WIRE 2416 1520 2336 1520 WIRE 2416 1536 2416 1520 WIRE 2416 1632 2416 1616 FLAG 2176 1488 0 FLAG 1920 1440 0 FLAG 1680 1360 0 FLAG 1584 1408 0 FLAG 1584 1200 0 FLAG 2560 1504 0 FLAG 2416 1632 0 FLAG 2656 1504 0 FLAG 2656 1392 OUT FLAG 1584 1088 IN SYMBOL POWERPRODUCTS\\LTC1771 1920 1280 R0 SYMATTR InstName U1 SYMBOL PMOS 2128 1360 M180 WINDOW 0 56 60 Left 2 WINDOW 3 56 24 Left 2 SYMATTR InstName Q1 SYMATTR Value FDC638P SYMBOL RES 2160 1088 R0 SYMATTR InstName R1 SYMATTR Value 50m SYMBOL schottky 2160 1472 M180 WINDOW 0 41 48 Left 2 WINDOW 3 39 4 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5817 SYMBOL cap 1760 1344 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value .001µ SYMBOL cap 1568 1312 R0 WINDOW 3 27 71 Left 2 SYMATTR Value 220p SYMATTR InstName C2 SYMBOL res 1728 1264 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 10K SYMBOL VOLTAGE 1584 1088 R0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL ind 2208 1408 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 15µ SYMATTR SpiceLine Rpar=5K SYMBOL polcap 2544 1408 R0 SYMATTR InstName C3 SYMATTR Value 150µ SYMATTR SpiceLine Rser=50m SYMBOL res 2400 1392 R0 SYMATTR InstName R3 SYMATTR Value 1.64Meg SYMBOL res 2400 1520 R0 SYMATTR InstName R4 SYMATTR Value 1Meg SYMBOL cap 2320 1408 R0 SYMATTR InstName C4 SYMATTR Value 5p SYMBOL res 2640 1392 R0 SYMATTR InstName Rload SYMATTR Value 5 TEXT 2008 1592 Left 2 !.tran 3m startup