Version 4
SHEET 1 2824 1880
WIRE 2032 1056 1936 1056
WIRE 2208 1056 2032 1056
WIRE 2208 1072 2208 1056
WIRE 2032 1088 2032 1056
WIRE 1936 1104 1936 1056
WIRE 1936 1104 1760 1104
WIRE 1168 1136 1024 1136
WIRE 1248 1136 1232 1136
WIRE 1984 1168 1760 1168
WIRE 2208 1168 2208 1152
WIRE 1104 1200 1024 1200
WIRE 1248 1200 1168 1200
WIRE 2032 1232 2032 1184
WIRE 2032 1232 1760 1232
WIRE 2080 1232 2032 1232
WIRE 2272 1232 2160 1232
WIRE 2288 1232 2272 1232
WIRE 2400 1232 2368 1232
WIRE 2464 1232 2400 1232
WIRE 2560 1232 2464 1232
WIRE 2464 1248 2464 1232
WIRE 2560 1248 2560 1232
WIRE 1040 1264 1024 1264
WIRE 1168 1264 1120 1264
WIRE 1248 1264 1232 1264
WIRE 1856 1296 1760 1296
WIRE 1920 1296 1856 1296
WIRE 2032 1296 2032 1232
WIRE 2032 1296 1984 1296
WIRE 1248 1328 1072 1328
WIRE 1856 1328 1856 1296
WIRE 2464 1344 2464 1312
WIRE 2560 1344 2560 1328
WIRE 1248 1360 1216 1360
WIRE 1792 1360 1760 1360
WIRE 1216 1392 1216 1360
WIRE 1248 1392 1216 1392
WIRE 1216 1424 1216 1392
WIRE 1248 1424 1216 1424
WIRE 1792 1424 1792 1360
WIRE 1792 1424 1760 1424
WIRE 1856 1424 1856 1392
WIRE 1856 1424 1792 1424
WIRE 1856 1440 1856 1424
WIRE 2032 1440 2032 1296
WIRE 2160 1440 2032 1440
WIRE 1216 1456 1216 1424
WIRE 1248 1456 1216 1456
WIRE 2032 1472 2032 1440
WIRE 2160 1472 2160 1440
WIRE 1216 1488 1216 1456
WIRE 1248 1488 1216 1488
WIRE 1072 1520 1072 1328
WIRE 1856 1520 1856 1504
WIRE 1248 1552 1232 1552
WIRE 1984 1552 1760 1552
WIRE 1216 1616 1216 1488
WIRE 1248 1616 1216 1616
WIRE 2032 1616 2032 1568
WIRE 2032 1616 1760 1616
WIRE 2032 1632 2032 1616
WIRE 2160 1632 2160 1536
WIRE 1216 1648 1216 1616
WIRE 1504 1744 1504 1680
WIRE 1552 1744 1504 1744
WIRE 1664 1744 1664 1680
WIRE 1664 1744 1616 1744
WIRE 1664 1776 1664 1744
WIRE 2272 1776 2272 1232
WIRE 2272 1776 1664 1776
WIRE 1072 1808 1072 1600
WIRE 1344 1808 1344 1680
WIRE 1344 1808 1072 1808
WIRE 1504 1808 1504 1744
WIRE 1504 1808 1344 1808
WIRE 2400 1808 2400 1232
WIRE 2400 1808 1504 1808
FLAG 2032 1632 0
FLAG 2560 1344 0
FLAG 2464 1344 0
FLAG 1024 1264 0
FLAG 1024 1200 0
FLAG 1024 1136 0
FLAG 2208 1168 0
FLAG 2560 1232 OUT
FLAG 1856 1520 0
FLAG 2160 1632 0
FLAG 1216 1648 0
FLAG 2208 1056 IN
SYMBOL POWERPRODUCTS\\LTC1736 1504 1328 R0
WINDOW 0 0 -280 Center 2
SYMATTR InstName U1
SYMBOL NMOS 1984 1472 R0
SYMATTR InstName Q1
SYMATTR Value Si4410DY
SYMBOL nmos 1984 1088 R0
SYMATTR InstName Q2
SYMATTR Value Si4410DY
SYMBOL ind 2064 1248 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1.5µ
SYMBOL RES 2272 1248 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 6m
SYMBOL polcap 2448 1248 R0
SYMATTR InstName C1
SYMATTR Value 180µ
SYMATTR SpiceLine Rser=25m
SYMBOL cap 1984 1280 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value .22µ
SYMBOL schottky 1840 1392 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMBOL cap 1232 1248 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 330p
SYMBOL res 1136 1248 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap 1232 1120 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 43p
SYMBOL cap 1168 1184 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value .001µ
SYMBOL VOLTAGE 2208 1056 R0
SYMATTR InstName V1
SYMATTR Value 7
SYMBOL res 1056 1504 R0
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL cap 1840 1440 R0
SYMATTR InstName C7
SYMATTR Value 4.7µ
SYMBOL schottky 2144 1536 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL cap 1616 1728 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 1000p
SYMBOL res 2544 1232 R0
SYMATTR InstName Rload
SYMATTR Value 1
TEXT 2256 1864 Left 2 !.tran 1.2m startup