Version 4 SHEET 1 3068 680 WIRE 2128 -176 2048 -176 WIRE 2240 -176 2192 -176 WIRE 2656 -176 2320 -176 WIRE 1456 -128 1360 -128 WIRE 1856 -128 1456 -128 WIRE 2112 -128 1856 -128 WIRE 2208 -128 2112 -128 WIRE 2416 -128 2208 -128 WIRE 2560 -128 2464 -128 WIRE 2656 -128 2656 -176 WIRE 2656 -128 2624 -128 WIRE 2720 -128 2656 -128 WIRE 2816 -128 2720 -128 WIRE 1360 -112 1360 -128 WIRE 1456 -112 1456 -128 WIRE 2112 -112 2112 -128 WIRE 2208 -112 2208 -128 WIRE 2416 -112 2416 -128 WIRE 2464 -112 2464 -128 WIRE 2720 -112 2720 -128 WIRE 2816 -112 2816 -128 WIRE 1856 -80 1856 -128 WIRE 1360 -16 1360 -32 WIRE 1456 -16 1456 -32 WIRE 1696 -16 1456 -16 WIRE 2048 -16 2048 -176 WIRE 2048 -16 2016 -16 WIRE 2112 -16 2112 -48 WIRE 2208 -16 2208 -32 WIRE 2208 -16 2112 -16 WIRE 2272 -16 2208 -16 WIRE 2416 -16 2416 -32 WIRE 2416 -16 2336 -16 WIRE 2464 -16 2464 -32 WIRE 2720 -16 2720 -48 WIRE 2816 -16 2816 -32 WIRE 1456 0 1456 -16 WIRE 2416 0 2416 -16 WIRE 1600 80 1584 80 WIRE 1696 80 1664 80 WIRE 2368 80 2016 80 WIRE 1456 96 1456 80 WIRE 2416 112 2416 96 WIRE 2416 112 2352 112 WIRE 2416 128 2416 112 WIRE 2656 144 2656 -128 WIRE 1600 176 1584 176 WIRE 1696 176 1680 176 WIRE 2352 176 2352 112 WIRE 2352 176 2016 176 WIRE 2416 224 2416 208 WIRE 1536 272 1488 272 WIRE 1632 272 1616 272 WIRE 1696 272 1632 272 WIRE 2656 272 2656 224 WIRE 2656 272 2016 272 WIRE 1488 288 1488 272 WIRE 1632 288 1632 272 WIRE 2656 288 2656 272 WIRE 1856 352 1856 336 WIRE 1488 368 1488 352 WIRE 1632 368 1632 352 WIRE 2656 384 2656 368 FLAG 1584 176 0 FLAG 2656 384 0 FLAG 1856 352 0 FLAG 2720 -16 0 FLAG 1488 368 0 FLAG 2816 -16 0 FLAG 1360 -16 0 FLAG 1584 80 0 FLAG 2048 48 0 FLAG 2816 -128 OUT FLAG 1360 -128 IN FLAG 1456 96 0 FLAG 2416 224 0 FLAG 1632 368 0 FLAG 2464 -16 0 SYMBOL NMOS 2368 0 R0 SYMATTR InstName Q1 SYMATTR Value Si4848DY SYMBOL RES 1696 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 63.4K SYMBOL res 2640 272 R0 SYMATTR InstName R2 SYMATTR Value 15.8K SYMBOL res 2640 128 R0 SYMATTR InstName R3 SYMATTR Value 105K SYMBOL ind2 2400 -128 R0 WINDOW 0 -1 36 Right 2 WINDOW 3 0 68 Right 2 SYMATTR InstName L1 SYMATTR Value 28.8µ SYMATTR Type ind SYMATTR SpiceLine Rpar=3K SYMBOL schottky 2560 -112 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MBRS360 SYMBOL res 1632 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL cap 1472 288 R0 SYMATTR InstName C2 SYMATTR Value .01µ SYMBOL VOLTAGE 1360 -128 R0 SYMATTR InstName V1 SYMATTR Value 54 SYMBOL polcap 2032 -16 R0 WINDOW 0 32 9 Left 2 WINDOW 3 34 49 Left 2 SYMATTR InstName C3 SYMATTR Value 4.7µ SYMBOL cap 1664 64 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .01µ SYMBOL res 1440 -16 R0 SYMATTR InstName R5 SYMATTR Value 44.2K SYMBOL res 1440 -128 R0 SYMATTR InstName R6 SYMATTR Value 1Meg SYMBOL res 2400 112 R0 SYMATTR InstName R7 SYMATTR Value .03 SYMBOL PowerProducts\\LT3758 1856 128 R0 SYMATTR InstName U1 SYMBOL cap 1616 288 R0 SYMATTR InstName C5 SYMATTR Value 100p SYMBOL res 2192 -128 R0 SYMATTR InstName R8 SYMATTR Value 6.2K SYMBOL cap 2096 -112 R0 SYMATTR InstName C6 SYMATTR Value .022µ SYMBOL diode 2336 -32 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D2 SYMATTR Value ES1D SYMBOL ind2 2480 -16 R180 WINDOW 0 -6 78 Right 2 WINDOW 3 -5 40 Right 2 SYMATTR InstName L2 SYMATTR Value 3.2µ SYMATTR Type ind SYMATTR SpiceLine Rpar=1K SYMBOL diode 2192 -192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D3 SYMATTR Value 1N4148 SYMBOL res 2336 -192 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 5.1 SYMBOL res 2800 -128 R0 SYMATTR InstName Rload SYMATTR Value 10 SYMBOL cap 2704 -112 R0 SYMATTR InstName C1 SYMATTR Value 47µ TEXT 2352 344 Left 2 !.tran 2m startup TEXT 2440 -128 Bottom 2 !K1 L1 L2 .99