Version 4 SHEET 1 2928 1440 WIRE 2064 880 1888 880 WIRE 2128 880 2064 880 WIRE 2304 880 2192 880 WIRE 2064 896 2064 880 WIRE 1760 944 1568 944 WIRE 1568 960 1568 944 WIRE 1760 976 1760 944 WIRE 1888 976 1888 880 WIRE 2064 976 2064 960 WIRE 2064 976 2016 976 WIRE 2192 976 2064 976 WIRE 2304 976 2304 880 WIRE 2304 976 2272 976 WIRE 2352 976 2304 976 WIRE 2464 976 2352 976 WIRE 2576 976 2464 976 WIRE 2064 992 2064 976 WIRE 2464 992 2464 976 WIRE 2576 992 2576 976 WIRE 2016 1040 2016 976 WIRE 2016 1040 1984 1040 WIRE 2352 1040 2352 976 WIRE 1568 1056 1568 1040 WIRE 2064 1072 2064 1056 WIRE 2464 1088 2464 1056 WIRE 2576 1088 2576 1072 WIRE 2304 1104 2304 976 WIRE 2304 1104 1984 1104 WIRE 1664 1168 1632 1168 WIRE 2352 1168 2352 1120 WIRE 2352 1168 1984 1168 WIRE 2352 1184 2352 1168 WIRE 2000 1232 1984 1232 WIRE 2080 1232 2064 1232 WIRE 2176 1232 2160 1232 WIRE 2352 1280 2352 1264 WIRE 1824 1312 1824 1296 FLAG 2176 1232 0 FLAG 1824 1312 0 FLAG 2352 1280 0 FLAG 2064 1072 0 FLAG 2464 1088 0 FLAG 1568 1056 0 FLAG 2576 1088 0 FLAG 2576 976 OUT FLAG 1568 944 IN SYMBOL cap 2048 896 R0 SYMATTR InstName C2 SYMATTR Value .27µ SYMBOL ind 2176 992 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 5µ SYMBOL RES 2336 1024 R0 SYMATTR InstName R1 SYMATTR Value 5.36K SYMBOL res 2336 1280 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R2 SYMATTR Value 4.99K SYMBOL schottky 2048 1056 M180 WINDOW 0 37 52 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value MBRS340 SYMBOL diode 2192 864 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D2 SYMATTR Value 1N914 SYMBOL VOLTAGE 1568 944 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap 2064 1216 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .005µ SYMBOL polcap 2448 992 R0 SYMATTR InstName C1 SYMATTR Value 100µ SYMBOL res 2064 1248 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL PowerProducts\\LT1374HV 1824 1136 R0 SYMATTR InstName U1 SYMBOL RES 2560 976 R0 SYMATTR InstName Rload SYMATTR Value 2 TEXT 2320 1336 Left 2 !.tran 500u startup