Version 4 SHEET 1 3044 1764 WIRE 1776 1088 1648 1088 WIRE 2128 1088 1776 1088 WIRE 2288 1088 2128 1088 WIRE 2768 1088 2288 1088 WIRE 1648 1104 1648 1088 WIRE 1776 1104 1776 1088 WIRE 2128 1136 2128 1088 WIRE 2288 1136 2288 1088 WIRE 2768 1168 2768 1088 WIRE 1648 1200 1648 1184 WIRE 1776 1200 1776 1184 WIRE 2048 1200 1776 1200 WIRE 2432 1200 2368 1200 WIRE 2544 1200 2432 1200 WIRE 2640 1200 2544 1200 WIRE 2640 1216 2640 1200 WIRE 2432 1232 2432 1200 WIRE 2544 1232 2544 1200 WIRE 1776 1280 1776 1200 WIRE 2048 1296 1824 1296 WIRE 2544 1312 2544 1296 WIRE 2640 1312 2640 1296 WIRE 2432 1344 2432 1312 WIRE 2432 1344 2368 1344 WIRE 2432 1360 2432 1344 WIRE 1584 1392 1472 1392 WIRE 1616 1392 1584 1392 WIRE 1664 1392 1616 1392 WIRE 1776 1392 1776 1376 WIRE 1776 1392 1744 1392 WIRE 1840 1392 1824 1392 WIRE 1936 1392 1920 1392 WIRE 2048 1392 1936 1392 WIRE 1472 1408 1472 1392 WIRE 1616 1408 1616 1392 WIRE 1776 1408 1776 1392 WIRE 1936 1408 1936 1392 WIRE 2432 1456 2432 1440 WIRE 1616 1488 1616 1472 WIRE 1776 1488 1776 1472 WIRE 2048 1488 1984 1488 WIRE 2768 1488 2768 1248 WIRE 2768 1488 2368 1488 WIRE 1472 1504 1472 1488 WIRE 1984 1504 1984 1488 WIRE 1584 1520 1584 1392 WIRE 1936 1520 1936 1488 WIRE 1936 1520 1584 1520 WIRE 2208 1552 2208 1536 WIRE 1984 1600 1984 1584 WIRE 1984 1680 1984 1664 FLAG 1648 1200 0 FLAG 1776 1488 0 FLAG 1616 1488 0 FLAG 2432 1456 0 FLAG 2544 1312 0 FLAG 2640 1312 0 FLAG 1472 1504 0 FLAG 1824 1392 0 FLAG 2208 1552 0 FLAG 1984 1680 0 FLAG 1648 1088 IN SYMBOL voltage 1648 1088 R0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL PowerProducts\\LTC3700 2208 1344 R0 SYMATTR InstName U1 SYMBOL res 1760 1088 R0 SYMATTR InstName R1 SYMATTR Value .068 SYMBOL pmos 1824 1376 R180 WINDOW 0 33 102 Right 2 WINDOW 3 -2 48 Right 2 SYMATTR InstName Q1 SYMATTR Value FDC638P SYMBOL schottky 1760 1472 M180 WINDOW 0 37 46 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5818 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 1760 1408 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 10µ SYMBOL cap 1600 1408 R0 SYMATTR InstName C1 SYMATTR Value 47µ SYMATTR SpiceLine Rser=50m SYMBOL res 2416 1216 R0 SYMATTR InstName R2 SYMATTR Value 169K SYMBOL res 2416 1344 R0 SYMATTR InstName R3 SYMATTR Value 78.7K SYMBOL cap 2528 1232 R0 SYMATTR InstName C2 SYMATTR Value 2.2µ SYMBOL res 1936 1376 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 80.6K SYMBOL res 1920 1504 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R5 SYMATTR Value 100K SYMBOL res 1968 1488 R0 SYMATTR InstName R6 SYMATTR Value 10K SYMBOL res 2752 1152 R0 SYMATTR InstName R7 SYMATTR Value 100K SYMBOL cap 1968 1600 R0 SYMATTR InstName C3 SYMATTR Value 220p SYMBOL res 2624 1200 R0 SYMATTR InstName Rload1 SYMATTR Value 16.7 SYMBOL res 1456 1392 R0 SYMATTR InstName Rload2 SYMATTR Value 1.8 TEXT 2448 1560 Left 2 !.tran 250u startup