Version 4 SHEET 1 2868 1400 WIRE 1824 880 1536 880 WIRE 1888 880 1824 880 WIRE 2032 880 1968 880 WIRE 2080 880 2032 880 WIRE 2192 880 2144 880 WIRE 2304 880 2192 880 WIRE 2416 880 2304 880 WIRE 2528 880 2416 880 WIRE 1536 896 1536 880 WIRE 2304 896 2304 880 WIRE 2416 896 2416 880 WIRE 2528 896 2528 880 WIRE 1824 928 1824 880 WIRE 2192 976 2192 880 WIRE 1536 992 1536 976 WIRE 1680 992 1648 992 WIRE 2032 992 2032 880 WIRE 2032 992 1968 992 WIRE 2304 992 2304 960 WIRE 2416 992 2416 960 WIRE 2528 992 2528 976 WIRE 2192 1072 2192 1056 WIRE 2192 1072 1968 1072 WIRE 2192 1088 2192 1072 WIRE 1456 1152 1392 1152 WIRE 1584 1152 1536 1152 WIRE 1680 1152 1584 1152 WIRE 2000 1152 1968 1152 WIRE 1392 1168 1392 1152 WIRE 1584 1168 1584 1152 WIRE 2192 1184 2192 1168 WIRE 1824 1232 1824 1216 WIRE 1392 1248 1392 1232 WIRE 1584 1248 1584 1232 FLAG 2416 992 0 FLAG 1584 1248 0 FLAG 1536 992 0 FLAG 1824 1232 0 FLAG 1392 1248 0 FLAG 2528 992 0 FLAG 2304 992 0 FLAG 2192 1184 0 FLAG 2528 880 OUT FLAG 1536 880 IN SYMBOL VOLTAGE 1536 880 R0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL CAP 2400 896 R0 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL CAP 1568 1232 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C2 SYMATTR Value .0047µ SYMBOL CAP 1376 1232 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C3 SYMATTR Value .047µ SYMBOL polcap 2288 896 R0 SYMATTR InstName C4 SYMATTR Value 22µ SYMATTR SpiceLine Rser=.05 SYMBOL RES 1440 1168 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 2K SYMBOL RES 2176 1072 R0 SYMATTR InstName R2 SYMATTR Value 6.19K SYMBOL RES 2176 960 R0 SYMATTR InstName R3 SYMATTR Value 53.6K SYMBOL schottky 2080 896 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MBRS340 SYMBOL IND 1872 896 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 4.7µ SYMATTR SpiceLine Rser=0.02 Rpar=5000 SYMBOL PowerProducts\\LT1372HV 1824 1072 R0 SYMATTR InstName U1 SYMBOL RES 2512 880 R0 SYMATTR InstName Rload SYMATTR Value 50 TEXT 2248 1232 Left 2 !.tran 1.5m startup