Version 4 SHEET 1 2812 972 WIRE 432 -176 -144 -176 WIRE 512 -176 432 -176 WIRE 608 -176 512 -176 WIRE 688 -176 608 -176 WIRE 512 -160 512 -176 WIRE 944 -160 896 -160 WIRE 1056 -160 944 -160 WIRE 1136 -160 1056 -160 WIRE 608 -144 608 -176 WIRE 944 -144 944 -160 WIRE 1056 -144 1056 -160 WIRE 1136 -144 1136 -160 WIRE 112 -128 96 -128 WIRE 432 -128 432 -176 WIRE 432 -128 400 -128 WIRE 688 -128 688 -176 WIRE 768 -128 688 -128 WIRE 896 -128 896 -160 WIRE 896 -128 816 -128 WIRE 432 -96 432 -128 WIRE 512 -64 512 -80 WIRE 768 -48 688 -48 WIRE 896 -48 816 -48 WIRE 944 -48 944 -80 WIRE 1056 -48 1056 -80 WIRE 1136 -48 1136 -64 WIRE 896 -16 896 -48 WIRE 976 -16 896 -16 WIRE 1120 -16 976 -16 WIRE 16 0 -16 0 WIRE 112 0 96 0 WIRE 608 0 608 -64 WIRE 608 0 400 0 WIRE 976 0 976 -16 WIRE -144 32 -144 -176 WIRE 688 48 688 -48 WIRE 112 64 80 64 WIRE 432 64 432 -32 WIRE 432 64 400 64 WIRE 464 64 432 64 WIRE 976 80 976 64 WIRE 32 128 16 128 WIRE 112 128 96 128 WIRE 640 128 400 128 WIRE 976 176 976 160 WIRE 976 176 832 176 WIRE -144 192 -144 112 WIRE -96 192 -144 192 WIRE 112 192 -96 192 WIRE 416 192 400 192 WIRE 576 192 496 192 WIRE 832 192 832 176 WIRE 976 192 976 176 WIRE -96 208 -96 192 WIRE 1120 224 1120 -16 WIRE 912 240 896 240 WIRE 16 256 0 256 WIRE 112 256 96 256 WIRE 480 256 400 256 WIRE 576 256 560 256 WIRE 832 272 832 256 WIRE -96 288 -96 272 WIRE 976 304 976 288 WIRE 1072 304 976 304 WIRE -48 320 -64 320 WIRE 112 320 32 320 WIRE 416 320 400 320 WIRE 576 320 480 320 WIRE 976 320 976 304 WIRE 1120 336 1120 320 WIRE 688 352 688 144 WIRE 688 352 624 352 WIRE -144 368 -144 192 WIRE 688 368 688 352 WIRE 896 368 896 240 WIRE 912 368 896 368 WIRE 112 384 96 384 WIRE 624 384 624 352 WIRE 624 384 400 384 WIRE 976 432 976 416 WIRE 624 448 400 448 WIRE -144 480 -144 432 WIRE 624 480 624 448 WIRE 688 480 688 448 WIRE 688 480 624 480 WIRE 688 496 688 480 WIRE 0 512 -16 512 WIRE 112 512 64 512 WIRE 608 512 608 0 WIRE 608 512 400 512 WIRE -144 576 -144 560 WIRE -80 576 -144 576 WIRE 32 576 0 576 WIRE 112 576 32 576 WIRE 416 576 400 576 WIRE 624 576 560 576 WIRE 720 576 672 576 WIRE 800 576 784 576 WIRE 896 576 896 368 WIRE 896 576 800 576 WIRE -144 592 -144 576 WIRE 32 592 32 576 WIRE 624 592 624 576 WIRE 672 592 672 576 WIRE 800 592 800 576 WIRE 896 592 896 576 WIRE 256 640 256 624 WIRE -144 688 -144 672 WIRE 32 688 32 672 WIRE 624 688 624 672 WIRE 672 688 672 672 WIRE 800 688 800 672 WIRE 896 688 896 656 FLAG 512 -64 0 FLAG 1120 336 0 FLAG 832 272 0 FLAG 1056 -48 0 FLAG 944 -48 0 FLAG 1136 -48 0 FLAG 1136 -160 OUT FLAG 896 688 0 FLAG 800 688 0 FLAG 976 432 0 FLAG 672 688 0 FLAG 96 384 0 FLAG -64 320 0 FLAG 0 256 0 FLAG -144 688 0 FLAG 32 688 0 FLAG 256 640 0 FLAG 16 128 0 FLAG -16 512 0 FLAG -96 288 0 FLAG 464 64 0 FLAG 576 192 0 FLAG 576 320 0 FLAG 576 256 0 FLAG 688 496 0 FLAG 624 688 0 FLAG 80 64 0 FLAG -16 0 0 FLAG 96 -128 0 FLAG 512 -176 IN SYMBOL LTC4269-1 256 224 R0 SYMATTR InstName U1 SYMBOL cap 480 304 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL cap 32 112 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1.5n SYMBOL cap 0 496 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 47p SYMBOL voltage 512 -176 R0 SYMATTR Value 54 SYMATTR InstName V1 SYMBOL res -160 16 R0 SYMATTR InstName R1 SYMATTR Value 39K SYMATTR Type r SYMBOL cap 416 -96 R0 SYMATTR InstName C4 SYMATTR Value 22µ SYMBOL ind2 752 -144 R0 WINDOW 0 -7 45 Right 2 WINDOW 3 -3 64 Right 2 SYMATTR InstName L1 SYMATTR Value 200µ SYMATTR SpiceLine Rser=.2 SYMBOL ind2 832 -32 R180 WINDOW 0 -7 71 Right 2 WINDOW 3 -5 43 Right 2 SYMATTR InstName L2 SYMATTR Value 3.125µ SYMATTR SpiceLine Rser=12m SYMBOL cap -112 208 R0 SYMATTR InstName C5 SYMATTR Value 10µ SYMBOL nmos 640 48 R0 WINDOW 0 60 9 Left 2 WINDOW 3 61 71 Left 2 SYMATTR InstName Q1 SYMATTR Value Si4490DY SYMBOL res 400 592 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 330 SYMBOL cap 560 560 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value .1µ SYMBOL cap 784 560 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 2.2n SYMBOL res 784 576 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL schottky 880 656 M180 WINDOW 0 34 66 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value BAT54 SYMATTR Description Diode SYMATTR Type diode SYMBOL pnp 912 416 M180 WINDOW 0 50 64 Left 2 WINDOW 3 46 34 Left 2 SYMATTR InstName Q2 SYMATTR Value 2N2907 SYMBOL nmos 1072 224 R0 WINDOW 3 61 63 Left 2 WINDOW 0 57 11 Left 2 SYMATTR Value Si4466DY SYMATTR InstName Q3 SYMBOL npn 912 192 R0 WINDOW 0 61 21 Left 2 WINDOW 3 55 64 Left 2 SYMATTR InstName Q4 SYMATTR Value 2N2222 SYMBOL cap 816 192 R0 WINDOW 3 26 54 Left 2 SYMATTR Value 1µ SYMATTR InstName C8 SYMBOL schottky 960 0 R0 SYMATTR InstName D2 SYMATTR Value BAT54 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 960 64 R0 SYMATTR InstName R4 SYMATTR Value 47 SYMBOL cap 928 -144 R0 WINDOW 3 41 36 Left 2 WINDOW 40 27 64 Left 2 SYMATTR Value 150µ SYMATTR SpiceLine2 x3 SYMATTR InstName C9 SYMBOL cap 1040 -144 R0 SYMATTR InstName C10 SYMATTR Value 1µ SYMBOL ind2 -128 688 R180 WINDOW 0 -10 83 Right 2 WINDOW 3 -3 36 Right 2 SYMATTR InstName L3 SYMATTR Value 50µ SYMATTR Type ind SYMATTR SpiceLine Rser=.215 SYMBOL res 16 576 R0 SYMATTR InstName R5 SYMATTR Value 3.4K SYMBOL res -96 560 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 33.8K SYMBOL diode -160 432 M180 WINDOW 0 24 72 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D3 SYMATTR Value MMSD4148 SYMBOL res -160 464 R0 SYMATTR InstName R7 SYMATTR Value 10 SYMBOL res 48 304 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 51K SYMBOL res 112 240 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 100K SYMBOL res 112 -16 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 30.9K SYMBOL res 464 272 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R11 SYMATTR Value 1.225K SYMBOL res 400 208 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R12 SYMATTR Value 50K SYMBOL res 592 -48 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R13 SYMATTR Value 100K SYMBOL ind2 608 688 M180 WINDOW 0 -1 82 Right 2 WINDOW 3 -5 38 Right 2 SYMATTR InstName L4 SYMATTR Value 1.5m SYMATTR Type ind SYMATTR SpiceLine Rser=1.5 SYMBOL ind2 688 688 R180 WINDOW 0 -7 80 Right 2 WINDOW 3 -4 43 Right 2 SYMATTR InstName L5 SYMATTR Value 1.5m SYMATTR Type ind SYMATTR SpiceLine Rser=1.5 SYMBOL res 672 352 R0 SYMATTR InstName R14 SYMATTR Value .04 SYMBOL res 1120 -160 R0 SYMATTR InstName Rload SYMATTR Value 1 TEXT 792 -136 Bottom 2 !K1 L1 L2 L3 1 TEXT 1040 488 Left 2 !.tran 145m startup TEXT 648 576 Bottom 2 !K2 L4 L5 1