Version 4 SHEET 1 1620 1348 WIRE -416 -576 -512 -576 WIRE -368 -576 -416 -576 WIRE -128 -576 -368 -576 WIRE 848 -576 -128 -576 WIRE 1216 -576 848 -576 WIRE 1616 -576 1216 -576 WIRE -512 -560 -512 -576 WIRE 848 -544 848 -576 WIRE -16 -528 -32 -528 WIRE 80 -528 64 -528 WIRE 160 -528 144 -528 WIRE 256 -528 256 -544 WIRE -368 -496 -368 -576 WIRE -512 -464 -512 -480 WIRE -128 -464 -128 -576 WIRE -32 -464 -32 -528 WIRE 64 -464 64 -528 WIRE 160 -464 160 -528 WIRE 256 -464 256 -480 WIRE 352 -464 352 -544 WIRE 448 -464 448 -480 WIRE 544 -464 544 -480 WIRE 640 -464 640 -480 WIRE 848 -448 848 -464 WIRE 912 -448 848 -448 WIRE 1008 -448 976 -448 WIRE 1104 -448 1008 -448 WIRE 848 -432 848 -448 WIRE 1104 -432 1104 -448 WIRE -368 -400 -368 -416 WIRE -240 -400 -368 -400 WIRE 784 -400 752 -400 WIRE -368 -384 -368 -400 WIRE 784 -352 784 -400 WIRE 800 -352 784 -352 WIRE 1104 -352 1104 -368 WIRE -240 -304 -256 -304 WIRE 848 -304 848 -336 WIRE 848 -304 752 -304 WIRE -368 -288 -368 -304 WIRE 848 -288 848 -304 WIRE -240 -208 -256 -208 WIRE 784 -208 752 -208 WIRE 848 -192 848 -208 WIRE -336 -112 -352 -112 WIRE -240 -112 -256 -112 WIRE 800 -112 752 -112 WIRE 1008 -112 1008 -448 WIRE 1008 -112 800 -112 WIRE -240 -16 -272 -16 WIRE 1008 -16 1008 -32 WIRE 1008 -16 752 -16 WIRE 1008 64 1008 -16 WIRE 960 80 752 80 WIRE 1216 80 1216 -576 WIRE 800 176 800 -32 WIRE 800 176 752 176 WIRE 816 176 800 176 WIRE 912 176 896 176 WIRE 1008 176 1008 160 WIRE 1040 176 1008 176 WIRE 1120 176 1104 176 WIRE 1216 176 1216 160 WIRE 1280 176 1216 176 WIRE 1376 176 1344 176 WIRE 1472 176 1376 176 WIRE 1216 192 1216 176 WIRE 1472 192 1472 176 WIRE 1168 272 752 272 WIRE 1472 272 1472 256 WIRE -272 368 -272 -16 WIRE -240 368 -272 368 WIRE 1216 368 1216 288 WIRE 1216 368 752 368 WIRE 1216 384 1216 368 WIRE -272 464 -272 368 WIRE -240 464 -272 464 WIRE 784 464 752 464 WIRE 1216 480 1216 464 WIRE -416 560 -416 -576 WIRE -272 560 -272 464 WIRE -240 560 -272 560 WIRE 800 560 752 560 WIRE 1376 560 1376 176 WIRE 1376 560 800 560 WIRE -416 656 -416 640 WIRE -256 656 -416 656 WIRE -240 656 -256 656 WIRE 1376 656 1376 640 WIRE 1376 656 752 656 WIRE -416 672 -416 656 WIRE 1376 736 1376 656 WIRE -256 752 -256 656 WIRE -240 752 -256 752 WIRE 1328 752 752 752 WIRE -416 768 -416 752 WIRE -256 848 -256 752 WIRE -240 848 -256 848 WIRE 800 848 800 640 WIRE 800 848 752 848 WIRE 816 848 800 848 WIRE 912 848 896 848 WIRE 1376 880 1376 832 WIRE -176 944 -176 912 WIRE -80 944 -80 912 WIRE 16 944 16 912 WIRE 496 944 496 912 WIRE 112 960 112 912 WIRE 320 960 112 960 WIRE 400 960 400 912 WIRE 688 960 688 912 WIRE 1376 960 1376 944 WIRE 112 976 112 960 WIRE 496 1008 480 1008 WIRE 592 1008 592 912 WIRE 592 1008 576 1008 WIRE 672 1008 592 1008 WIRE 800 1008 768 1008 WIRE 896 1008 800 1008 WIRE 1616 1008 1616 -576 WIRE 1616 1008 976 1008 WIRE -176 1024 -176 1008 WIRE -80 1024 -80 1008 WIRE 16 1024 16 1008 WIRE 112 1072 112 1056 WIRE 800 1072 800 1008 WIRE 208 1120 208 912 WIRE 128 1168 112 1168 WIRE 304 1168 304 912 WIRE 304 1168 224 1168 WIRE 320 1168 304 1168 WIRE 400 1168 400 960 WIRE 800 1168 800 1136 WIRE 800 1168 400 1168 WIRE 112 1200 112 1168 WIRE 720 1264 704 1264 WIRE 800 1264 800 1168 WIRE 800 1264 784 1264 WIRE 112 1280 112 1264 FLAG -512 -464 0 FLAG 256 -544 0 FLAG 352 -544 0 FLAG 448 -544 0 FLAG 544 -544 0 FLAG 640 -544 0 FLAG -256 -304 0 FLAG -368 -288 0 FLAG -256 -208 0 FLAG -352 -112 0 FLAG -416 768 0 FLAG -512 -576 IN FLAG -176 1024 0 FLAG -80 1024 0 FLAG 16 1024 0 FLAG 848 -192 0 FLAG 784 -208 0 FLAG 912 176 0 FLAG 1104 -352 0 FLAG 1120 176 0 FLAG 1216 480 0 FLAG 784 464 0 FLAG 912 848 0 FLAG 1472 272 0 FLAG 1376 960 0 FLAG 1104 -448 OUT1 FLAG 1472 176 OUT2 FLAG 480 1008 0 FLAG 496 944 0 FLAG 112 1072 0 FLAG 704 1264 0 FLAG 112 1280 0 FLAG 800 1264 OUT3 SYMBOL PowerProducts\\LT3797 256 224 R0 SYMATTR InstName U1 SYMBOL voltage -512 -576 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 25 SYMBOL ind -32 -512 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 47µ SYMATTR SpiceLine Rser=.2 SYMBOL cap 80 -512 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL cap 240 -544 R0 SYMATTR InstName C2 SYMATTR Value 10µ SYMBOL cap 432 -544 R0 SYMATTR InstName C3 SYMATTR Value .05µ SYMBOL cap 528 -544 R0 SYMATTR InstName C4 SYMATTR Value .05µ SYMBOL cap 624 -544 R0 SYMATTR InstName C5 SYMATTR Value .05µ SYMBOL res -384 -512 R0 SYMATTR InstName R1 SYMATTR Value 47.5K SYMBOL res -384 -400 R0 SYMATTR InstName R2 SYMATTR Value 49.9K SYMBOL res -240 -128 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 48.7K SYMBOL res -432 544 R0 SYMATTR InstName R4 SYMATTR Value 487K SYMBOL res -432 656 R0 SYMATTR InstName R5 SYMATTR Value 75K SYMBOL cap -192 944 R0 WINDOW 39 15 97 Top 2 SYMATTR SpiceLine Rser=4.7K SYMATTR InstName C6 SYMATTR Value .01µ SYMBOL ind 832 -560 R0 SYMATTR InstName L2 SYMATTR Value 10µ SYMATTR SpiceLine Rser=50m SYMBOL nmos 800 -432 R0 SYMATTR InstName M1 SYMATTR Value Si4470DY SYMBOL res 832 -304 R0 SYMATTR InstName R6 SYMATTR Value 8m SYMBOL schottky 912 -432 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MBRS360 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 992 -128 R0 SYMATTR InstName R7 SYMATTR Value .25 SYMBOL pmos 960 160 M180 WINDOW 0 67 109 Left 2 SYMATTR InstName M2 SYMATTR Value Si7465DP SYMBOL res 784 -128 R0 SYMATTR InstName R8 SYMATTR Value 20.5K SYMBOL res 800 192 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R9 SYMATTR Value 1Meg SYMBOL cap 1088 -432 R0 WINDOW 123 30 60 Left 2 WINDOW 3 39 33 Left 2 SYMATTR Value2 x2 SYMATTR InstName C9 SYMATTR Value 4.7µ SYMATTR SpiceLine Rser=5m SYMBOL LED 1040 192 R270 WINDOW 0 36 70 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 123 -28 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value LXK2-PW14 SYMATTR Value2 N=15 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 1200 64 R0 SYMATTR InstName L3 SYMATTR Value 10µ SYMATTR SpiceLine Rser=50m SYMBOL nmos 1168 192 R0 SYMATTR InstName M3 SYMATTR Value Si4470DY SYMBOL res 1200 368 R0 SYMATTR InstName R10 SYMATTR Value 8m SYMBOL schottky 1280 192 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D3 SYMATTR Value MBRS360 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 1360 544 R0 SYMATTR InstName R11 SYMATTR Value .25 SYMBOL pmos 1328 832 M180 WINDOW 0 59 72 Left 2 WINDOW 3 57 33 Left 2 SYMATTR InstName M4 SYMATTR Value Si7465DP SYMBOL res 784 544 R0 SYMATTR InstName R12 SYMATTR Value 20.5K SYMBOL res 800 864 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R13 SYMATTR Value 1Meg SYMBOL cap 1456 192 R0 WINDOW 123 29 64 Left 2 WINDOW 3 38 36 Left 2 SYMATTR Value2 x2 SYMATTR InstName C10 SYMATTR Value 4.7µ SYMATTR SpiceLine Rser=5m SYMBOL LED 1360 880 R0 WINDOW 3 81 36 Left 2 WINDOW 123 38 69 Left 2 SYMATTR InstName D4 SYMATTR Value LXK2-PW14 SYMATTR Value2 N=15 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 992 992 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L4 SYMATTR Value 10µ SYMATTR SpiceLine Rser=50m SYMBOL nmos 768 960 R90 WINDOW 0 -15 16 VLeft 2 WINDOW 3 78 -7 VRight 2 SYMATTR InstName M5 SYMATTR Value Si4470DY SYMBOL res 592 992 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R14 SYMATTR Value 8m SYMBOL schottky 784 1072 R0 SYMATTR InstName D5 SYMATTR Value MBRS360 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 416 1152 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R15 SYMATTR Value .25 SYMBOL pmos 128 1120 M90 WINDOW 0 -12 64 VLeft 2 WINDOW 3 71 44 VRight 2 SYMATTR InstName M6 SYMATTR Value Si7465DP SYMBOL res 416 944 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R16 SYMATTR Value 20.5K SYMBOL res 96 960 R0 SYMATTR InstName R17 SYMATTR Value 1Meg SYMBOL cap 784 1248 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 123 53 32 VTop 2 SYMATTR InstName C11 SYMATTR Value 4.7µ SYMATTR Value2 x2 SYMATTR SpiceLine Rser=5m SYMBOL LED 96 1200 R0 WINDOW 3 78 36 Left 2 WINDOW 123 42 70 Left 2 SYMATTR InstName D6 SYMATTR Value LXK2-PW14 SYMATTR Value2 N=15 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -96 944 R0 WINDOW 39 17 124 Top 2 SYMATTR SpiceLine Rser=4.7K SYMATTR InstName C7 SYMATTR Value .01µ SYMBOL cap 0 944 R0 WINDOW 39 15 97 Top 2 SYMATTR SpiceLine Rser=4.7K SYMATTR InstName C8 SYMATTR Value .01µ TEXT 1280 1120 Left 2 !.tran 2m startup