Version 4 SHEET 1 3332 1924 WIRE 1360 784 1200 784 WIRE 1840 784 1360 784 WIRE 2688 784 1840 784 WIRE 2768 784 2688 784 WIRE 2912 784 2768 784 WIRE 1200 800 1200 784 WIRE 1600 848 1488 848 WIRE 2080 848 1600 848 WIRE 2160 848 2080 848 WIRE 2560 848 2224 848 WIRE 2768 848 2768 784 WIRE 1200 896 1200 880 WIRE 1488 912 1488 848 WIRE 1840 912 1840 784 WIRE 2080 912 2080 848 WIRE 2320 912 2320 880 WIRE 2912 944 2912 784 WIRE 1664 992 1632 992 WIRE 2768 992 2768 928 WIRE 2768 992 2496 992 WIRE 2848 992 2768 992 WIRE 1360 1072 1360 784 WIRE 1488 1072 1488 976 WIRE 1664 1072 1488 1072 WIRE 2912 1072 2912 1040 WIRE 2912 1072 2496 1072 WIRE 3024 1072 2912 1072 WIRE 2912 1088 2912 1072 WIRE 3024 1088 3024 1072 WIRE 1664 1152 1408 1152 WIRE 2560 1152 2560 848 WIRE 2560 1152 2496 1152 WIRE 2688 1152 2688 784 WIRE 2912 1184 2912 1168 WIRE 3024 1184 3024 1152 WIRE 1104 1200 1088 1200 WIRE 1216 1200 1184 1200 WIRE 1360 1200 1360 1168 WIRE 1360 1200 1216 1200 WIRE 1488 1200 1488 1136 WIRE 1488 1200 1360 1200 WIRE 1360 1232 1360 1200 WIRE 1488 1232 1488 1200 WIRE 1664 1232 1488 1232 WIRE 2640 1232 2496 1232 WIRE 1216 1248 1216 1200 WIRE 2560 1280 2560 1216 WIRE 2688 1280 2688 1248 WIRE 2688 1280 2560 1280 WIRE 2848 1280 2688 1280 WIRE 2896 1280 2848 1280 WIRE 3008 1280 2976 1280 WIRE 1664 1312 1408 1312 WIRE 2560 1312 2560 1280 WIRE 2560 1312 2496 1312 WIRE 2688 1312 2688 1280 WIRE 2848 1328 2848 1280 WIRE 1216 1360 1216 1312 WIRE 1360 1360 1360 1328 WIRE 1088 1392 1088 1200 WIRE 1424 1392 1088 1392 WIRE 1664 1392 1424 1392 WIRE 2640 1392 2496 1392 WIRE 2688 1440 2688 1408 WIRE 2848 1440 2848 1392 WIRE 1088 1472 960 1472 WIRE 1424 1472 1424 1456 WIRE 1424 1472 1088 1472 WIRE 1632 1472 1632 992 WIRE 1632 1472 1424 1472 WIRE 1664 1472 1632 1472 WIRE 2560 1472 2496 1472 WIRE 3008 1472 3008 1280 WIRE 3008 1472 2560 1472 WIRE 960 1488 960 1472 WIRE 1088 1488 1088 1472 WIRE 1664 1552 1648 1552 WIRE 2560 1552 2560 1536 WIRE 2560 1552 2496 1552 WIRE 3008 1552 2560 1552 WIRE 960 1584 960 1568 WIRE 1088 1584 1088 1552 WIRE 1600 1632 1600 848 WIRE 1664 1632 1600 1632 WIRE 2784 1632 2496 1632 WIRE 2848 1632 2784 1632 WIRE 3008 1632 3008 1552 WIRE 3008 1632 2928 1632 WIRE 3136 1632 3008 1632 WIRE 2784 1648 2784 1632 WIRE 3008 1648 3008 1632 WIRE 3136 1648 3136 1632 WIRE 1664 1712 1568 1712 WIRE 2560 1712 2496 1712 WIRE 2784 1744 2784 1728 WIRE 3008 1744 3008 1712 WIRE 3136 1744 3136 1728 WIRE 1568 1792 1568 1776 WIRE 1568 1792 1440 1792 WIRE 2560 1792 2560 1776 WIRE 2688 1792 2560 1792 WIRE 1440 1808 1440 1792 WIRE 1568 1808 1568 1792 WIRE 1760 1808 1760 1792 WIRE 1920 1808 1920 1792 WIRE 2080 1808 2080 1792 WIRE 2240 1808 2240 1792 WIRE 2400 1808 2400 1792 WIRE 2560 1808 2560 1792 WIRE 2688 1808 2688 1792 WIRE 1760 1888 1760 1872 WIRE 1920 1888 1920 1872 WIRE 2400 1888 2400 1872 WIRE 1440 1904 1440 1872 WIRE 1568 1904 1568 1888 WIRE 2560 1904 2560 1888 WIRE 2688 1904 2688 1872 FLAG 1920 1888 0 FLAG 2080 1808 0 FLAG 1760 1888 0 FLAG 2400 1888 0 FLAG 2240 1808 0 FLAG 2688 1440 0 FLAG 2848 1440 0 FLAG 1360 1360 0 FLAG 1216 1360 0 FLAG 1088 1584 0 FLAG 3008 1744 0 FLAG 2560 1904 0 FLAG 2688 1904 0 FLAG 1568 1904 0 FLAG 1440 1904 0 FLAG 960 1584 0 FLAG 3136 1744 0 FLAG 2912 1184 0 FLAG 1200 896 0 FLAG 2784 1744 0 FLAG 3024 1184 0 FLAG 960 1472 OUT1 FLAG 3136 1632 OUT2 FLAG 1200 784 IN SYMBOL cap 1744 1808 R0 SYMATTR InstName C1 SYMATTR Value .01µ SYMBOL cap 1904 1808 R0 SYMATTR InstName C2 SYMATTR Value 100p SYMBOL cap 2384 1808 R0 SYMATTR InstName C3 SYMATTR Value .01µ SYMBOL NMOS 2640 1152 R0 SYMATTR InstName Q1 SYMATTR Value Si4410DY SYMBOL nmos 2640 1312 R0 SYMATTR InstName Q2 SYMATTR Value Si4410DY SYMBOL ind 2880 1296 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 10µ SYMBOL schottky 2832 1392 M180 WINDOW 0 24 72 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5818 SYMBOL RES 2992 1456 R0 SYMATTR InstName R1 SYMATTR Value .03 SYMBOL cap 2544 1152 R0 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL schottky 2160 864 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value 1N5818 SYMBOL schottky 1472 912 R0 WINDOW 3 23 72 Left 2 SYMATTR Value 1N5818 SYMATTR InstName D3 SYMBOL nmos 1408 1072 M0 WINDOW 0 33 -7 Right 2 WINDOW 3 35 102 Right 2 SYMATTR InstName Q3 SYMATTR Value Si4410DY SYMBOL nmos 1408 1232 M0 WINDOW 0 -5 30 Right 2 WINDOW 3 22 102 Right 2 SYMATTR InstName Q4 SYMATTR Value Si4410DY SYMBOL ind 1200 1216 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 10µ SYMBOL schottky 1200 1312 M180 WINDOW 0 24 72 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D4 SYMATTR Value 1N5818 SYMBOL res 1072 1376 R0 SYMATTR InstName R2 SYMATTR Value .03 SYMBOL cap 1472 1072 R0 WINDOW 0 27 20 Left 2 SYMATTR InstName C5 SYMATTR Value .1µ SYMBOL polcap 1072 1488 R0 SYMATTR InstName C6 SYMATTR Value 220µ SYMBOL polcap 2992 1648 R0 SYMATTR InstName C7 SYMATTR Value 220µ SYMBOL res 2544 1792 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL cap 2544 1712 R0 SYMATTR InstName C8 SYMATTR Value 1000p SYMBOL cap 2672 1808 R0 SYMATTR InstName C9 SYMATTR Value 470p SYMBOL res 1552 1792 R0 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL cap 1552 1712 R0 WINDOW 0 29 17 Left 2 SYMATTR InstName C10 SYMATTR Value 1000p SYMBOL cap 1424 1808 R0 SYMATTR InstName C11 SYMATTR Value 470p SYMBOL cap 2544 1472 R0 WINDOW 0 34 22 Left 2 SYMATTR InstName C12 SYMATTR Value 1000p SYMBOL cap 1408 1392 R0 WINDOW 0 37 19 Left 2 SYMATTR InstName C13 SYMATTR Value 1000p SYMBOL res 944 1584 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName Rload1 SYMATTR Value 10 SYMBOL res 3120 1744 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName Rload2 SYMATTR Value 10 SYMBOL PNP 2848 1040 M180 WINDOW 0 65 68 Left 2 WINDOW 3 66 34 Left 2 SYMATTR InstName Q5 SYMATTR Value 2N2907 SYMBOL res 2896 1072 R0 SYMATTR InstName R7 SYMATTR Value 10K SYMBOL res 2752 832 R0 SYMATTR InstName R8 SYMATTR Value 1K SYMBOL VOLTAGE 1200 784 R0 SYMATTR InstName V1 SYMATTR Value 20 SYMBOL RES 2768 1632 R0 SYMATTR InstName R9 SYMATTR Value 100K SYMBOL RES 2944 1616 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 177K SYMBOL polcap 3008 1088 R0 SYMATTR InstName C14 SYMATTR Value 1µ SYMBOL POWERPRODUCTS\\LTC1538-AUX 2080 1312 R0 SYMATTR InstName U1 TEXT 2856 1832 Left 2 !.tran 6.5m startup